The first deaf Africans American alumnus of Gallaudet to earn a doctorate was Dr. Glenn B. Anderson in 1982.
Who is Dr. Glenn B. Anderson?As the first Deaf African-American doctor in the United States, Dr. Glenn B. Anderson is well-known in his field.
He was born and reared on Chicago's South Side, and at the age of seven, he lost his hearing. His parents advised him "you have to be twice as excellent as everyone else to succeed" when they encountered difficulties and challenges in his early life.
Dr. Anderson graduated with a bachelor's degree in psychology from what was then the Gallaudet College in 1968, and he then went on to the University of Arizona to get a master's degree in rehabilitation counseling.
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Process in which co2, is released as a by-product of oxidation-reduction reactions.
Kreb's cycle or citric acid cycle is the process in which CO₂ is released as a by-product of oxidation-reduction reactions.
We all know that the by-product of respiration is CO₂. The CO₂ is actually a by-product of an oxidation-reduction reaction that occurs in the mitochondria of all eukaryotic cells called the Kreb's cycle.
The Kreb's cycle is also called the citric acid cycle because the first product is usually citric acid. It is the second stage in cellular respiration, and is also called the aerobic stage, as it requires oxygen to occur. Since it requires oxygen, anaerobic organisms do not engage in the Kreb's cycle.
During glycolysis, one glucose molecule is broken down to give two pyruvate molecules, which concludes the first stage of cellular respiration. The pyruvate molecule is then taken to the matrix of the mitochondria, where the Kreb's cycle occurs and is decarboxylated to give CoA. Certain enzymes then break down the CoA to give two molecules of CO₂ as a by-product and one molecule of H₂O.
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Energy-requiring reactions can occur in biological systems because they can be coupled with reactions that are?
Energy-requiring reactions can occur in biological systems because they can be coupled with reactions that are exergonic reaction.
In chemical thermodynamics, an exergonic reaction is a chemical reaction where the conversion in the free energy is negative (there is a net allow to leave of free energy). This shows a unbidden reaction if the structure is closed and starting and final temperatures are the similar.
Formula of exergonic reaction :
∆G = Gproducts - Greactants
where
∆G = change in free energy
G-products = free energy of products
G-reactants = free energy of reactants
Now, it can understood that "Energy - requiring reactions can occur in biological systems because they can be coupled with reactions that are exergonic reactions."
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Small stretches of a deoxyribonucleic acid molecule, situated as a particular site on a chromosome, are knows as?
The small stretches on a chromosome of a deoxyribonucleic acid (DNA) molecule on a particular site is known as gene.
Gene is a fundamental, structural and operational component of heredity in living beings. They serve as a blueprints for synthesis of proteins. Genes are responsible for transfer of traits from parents to the progeny.
The sequence of nucleotide on a DNA strand determines the coding for various proteins. From a few hundred DNA bases to more than 2 million bases, genes range in size. Every human contains two copies of same gene, one from each parent.
Protein-coding genes make up only around 1% of DNA; the remaining 99% is non-coding genes. There are no protein-making instructions in non-coding part of DNA.
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Hydrolysis of which covalent bonds in atp releases a considerable amount of energy?
There is a significant quantity of energy released during the hydrolysis of the covalent bonds in ATP.
Phosphate-phosphate bond hydrolysis occurs during the breakdown of an ATP molecule, which releases a significant amount of energy.
How is ATP hydrolysis defined?
Adenosine triphosphate (ATP) contains highly energetic phosphoanhydride bonds that, when broken, such as occurs in muscles, release chemical energy through a catabolic reaction process called ATP hydrolysis.Nitrogen-carbon double bonds, phosphate-phosphate bonds, carbon-hydrogen bonds, and hydrogen bonds are all found in an ATP molecule.
Phosphate-phosphate bond hydrolysis occurs during the breakdown of an ATP molecule, which releases a significant amount of energy.
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Calculate the ph of 1.0 l of an aqueous solution containing 75 mmol of mes (pka = 6.09) and 25 mmol of its conjugate base.
The pH of 1.0 l of an aqueous solution containing 75 mmol is 5.61
Here we calculate pH value
Given data is aqueous solution containing 75 mmol (pka = 6.09) and 25 mmol of its conjugate base
pH = pKa + log [A-]/[HA]
pH = 6.09 + log (25 mM/75 mM) = 6.09 - 0.48 =5.61
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perform the following operation and express the answer in scientific notation 5.7365 x 10^-5 / 3.4891 x 10^-8
The e answer in scientific notation 5.7365 x[tex]10^{-5}[/tex]/ 3.4891 x [tex]10^{-8}[/tex] is 1.64 x [tex]10^{3}[/tex] .
Calculation ,
5.7365 x [tex]10^{-5}[/tex] / 3.4891 x [tex]10^{-8}[/tex] = 1.64 x [tex]10^{3}[/tex] = 1644
Below are the five guidelines for scientific notation:
1. The base must always be 10.
2. The exponent must be an integer that is non-zero, meaning it may be positive or negative.
3. The coefficient's absolute value is more than or equal to 1, but it must be less than 10.
4. Both whole and decimal numbers, including positive and negative numbers, can be used as coefficients.
5. The remaining significant digits of the number are carried by the mantissa.
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According to rutherford's nuclear theory, the number of negatively charged particles outside the nucleus is?
According to Rutherford's nuclear theory, the number of negatively charged particles outside the nucleus is equal to the number of positively charged protons inside it.
What is Rutherford's nuclear theory?
According to the Rutherford atomic theory, an atom is made up of a compact, dense, positively charged nucleus that is around by smaller, negatively charged particles called electrons. It explains the atomic model, according to which an atom's mass is concentrated in its nucleus, around which the electrons, or negatively charged particles, move.
In accordance with Rutherford's nuclear theory, an oxygen atom has 8 protons and 8 electrons, whereas a calcium atom cannot have 20 protons and 20 electrons. This is because the number of negatively charged particles outside the nucleus is equal to the number of positively charged particles inside the nucleus.
Thus, the number of negatively charged electrons outside the nucleus is equal to the number of positively charged protons inside the same.
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If volume of a water sample is 11.3 ml and the mass is 11.349 g, what is the exact density of the sample?
The exact density of the water sample with volume 11.3ml and mass 11.349g is 1.004g/ml.
Density of a solution is defined as the ration of mass of the solution to the volume of the solution. Density is measured in g/cm³ for solids, g/ml for liquids, and g/L for gases.
As per the definition of density ,we can write
Density of solution = (Mass of the Solution / Volume of the solution)
Mass of the water sample = 11.349g
Volume of water sample = 11.3ml
Density of Water sample = (Mass of water sample/Volume of Water sample)
Density of Water sample = (11.349g / 11.3ml)
Density of Water sample = 1.004g/ml.
The exact density of the water sample with volume 11.3ml and mass 11.349g is 1.004g/ml.
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How many moles are there in 250g of calcium carbonate
Answer:2.5 mol
Explanation:
Calculate the energy (a) in ev and (b) in joules of the third energy level (n= 3) ofa hydrogen atom.
The energy (a) in EV and (b) in joules of the third energy level (n= 3) of the hydrogen atom.
-1.51 eV
-2.42 x 10^-19 J
In physics, energy is a quantitative property that is transferred to a body or physical system and can be perceived in the performance of work or in the form of heat and light. Energy is Conserved - The law of conservation of energy states that energy can be transformed into form, but cannot be created or destroyed.
The energy price cap, introduced in 2019 by market regulator Ofgem, sets the maximum amount (known as the “unit price”) that utilities can charge per kWh of gas and electricity. There is no right or wrong answer to choosing between a fixed power plan and a variable power plan. Which energy rate is best for your home depends on your assessment of future energy prices and your willingness to take risks. Compare energy suppliers to find the perfect match.
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Restate how a satellite stays in orbit with your own words, as if you were trying to explain the process to a younger friend or sibling
Satellite stays in orbit because of two factors velocity and gravitational pull of Earth.
A rocket fired from the ground with enough power to leave our atmosphere is used to put satellites into orbit.The satellite is dropped into orbit once the rocket arrives at the predetermined location.A satellite can stay in orbit for hundreds of years if it maintains its initial speed once it separates from the launch vehicle.A satellite keeps its orbit in place by balancing the gravitational pull of Earth with its velocity, which is the speed required to move in a straight line. In order to withstand the stronger gravitational attraction, a satellite must circle at a faster pace as it gets closer to the Earth.In short, they hold their place by locking into speeds that are quick enough to overcome gravity's pull downward.Therefore, Satellite stays in orbit.
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A certain compound contains 78.54% carbon and 21.46% hydrogen. How much carbon is in a 3.44 g portion of this sample?
Answer:
2.70 grams
Explanation:
78.54% of the compound is carbon, so in a 1 gram sample, there would be 0.7854 grams of carbon since 78.54% * 1 = 0.7854. Similarly, we multiple 78.54% by 3.44 to get the mass of carbon in a 3.44 gram sample.
78.54% * 3.44 = 0.7854 * 3.44 = 2.701776, but only leave 3 digits because otherwise it would be false accuracy
Propane, c3h8, is a common fuel used for cooking and home heating. what mass of o2 is consumed in the combustion of 1.00 g of propane?
3.63g of O2 is consumed in the combustion of 1.00 g of propane.
Propane, c3h8, is a common fuel used for cooking and home heating.
C3H8 + 502---> 3CO2 + 4H20.
The combustion equation must first be balanced as illustrated above. The law of constant proportions can then be used to deduce that for every 1 mol of C3H8, there will be 5 mol of O2.
Using significant figures,
1 mol C3H8 -------> 44 g
1 mol O2 ------> 32g x 5 = 160
= 160/ 44g
160g/44g= 40/11 = 3.63g.
= 3.63g of O2 is consumed in the combustion of 1.00 g of propane.
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If you had equal masses of each of the following substances, which would occupy the greatest volume?
Cocoa butter occupies the greatest volume.
What is cocoa butter good for?
Vitamin E has several health advantages for the body, and cocoa butter is a good source of this vitamin. The health of your blood, brain, skin, and reproductive system are all supported by vitamin E. Due to its high fatty acid content, cocoa butter is an excellent choice as the main component of skin creams.
Cocoa butter is 9/0 it's close to ICL but cocoa butter is the smallest end this one will take off the most volume because it is divided by the smaller density.It is important not to overheat the Baker when drying the sodium chloride because by these comments won't be loss and Baker was properly heat.
Complete question -
If you had equal masses of each of the following substances, which would occupy the greatest volume?a. ice (d = 0.917 g/mL)d. cocoa butter (d = 0.910 g/mL)b. water (d = 0.997 g/mL)e. aluminum (d = 2.70 g/mL)c. beeswax (d = 0.960 g/mL)
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The haber process is typically carried out at a temperature of approximately 500 ∘c. What would happen to the rate of the forward reaction if the temperature were lowered to 100 ∘c ?.
The Haber process is typically carried out at a temperature of approximately [tex]500^{0}C[/tex]. The rate of the forward reaction would be decreased if the temperature were lowered to [tex]100^{0}C[/tex].
For every [tex]10^{0} C[/tex] increase in temperature, most reactions double in rate. On the other hand, a temperature that is too low cannot be used because the rate of the reaction will be significantly slowed. As a result, a compromise temperature [tex]450^{0}C[/tex] is used, which is high enough for the rate to be quite fast but low enough to yield a relatively high ammonia yield. This reaction takes place at a pressure of 200 atm.
Higher temperatures accelerate the rate of reaction. We've seen that when reactions are carried out at a higher temperature, the rate of reaction increases. A higher temperature would allow the Haber process to occur more quickly.
Temperature increases typically increase the rate of reaction. The average kinetic energy of the reactant molecules increases as the temperature rises. As a result, a larger proportion of molecules will have the minimum energy required for an effective collision.
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0.10 mol of naoh is added to 0.30 mol of weak acid hx in a total volume of 1.00 l. the ph of the resultant solution is 8.65. what is ka for hx?
Ka for HX is 1.12×10⁻⁹.
Balanced chemical equation for the reaction of sodium hydroxide (NaOH) with weak acid (HX):
NaOH + HX ⇄ NaX + H2O
n(NaOH) = 0.10 mol; amount of sodium hydroxide
V = 1.00 L; volume of the solution
c(HX) = (0.3 mol - 0.1 mol) / 1.00 L
c(HX) = 0.2 M; concentration of a weak acid
c(NaX) = 0.1 M; concentration of a salt
pH = 8.65
Henderson–Hasselbalch equation: pH = pKa + log(cs/ck).
8.65 = pKa + log(0.1 M / 0.2 M)
8.65 = pKa - 0.30
pKa = 8.95
Ka = 10∧-8.95
Ka = 1.12×10⁻⁹; the acid dissociation constant
Buffer is a solution that can resist pH change upon the addition of an acidic or basic components and it is able to neutralize small amounts of added acid or base, pH of the solution is relatively stable.
This buffer is example of weak acid (HX) and its conjugate base (X⁻).
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If each oxygen atom represents 0.050 mol, how many molecules of dichlorine monoxide were present before the decomposition?
0.6 moles molecules of dichlorine monoxide were present before the decomposition.
Balanced chemical equation for reaction of gaseous dichlorine monoxide decomposes to chlorine and oxygen gases:
2Cl₂O → 2Cl₂ + O₂
n(O) = 12 × 0.050 mol
n(O) = 0.6 mol; number of oxygen atoms
n(O) : n(O₂); ratio of oxygen atoms to oxygen molecules (see the picture below)
n(O₂) = 0.6 ÷ 2
n(O₂) = 0.3 mol; amount of oxygen molecules
n(O₂) : n(Cl₂O) = 1 : 2; from balanced equation
n(Cl₂O) = 2 × 0.3 mol
n(Cl₂O) = 0.6 mol; amount of dichlorine monoxide
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What chemical reactions occur in a Nelson's cell?
Explanation:
The graphite anodes are suspended into the brine. During electrolysis, Cl ions are oxidized at the anode and chlorine gas goes out of the cell, while sodium ions are reduced at the mercury cathode forming sodium amalgam. ... Hydrogen gas is obtained as a by–product at the cathode.
an ion with one more proton and two more neutrons as an atom of Ne-20 but the same number of electrons?
The ion is sodium ion.
What is the ion?An ion is obtained by the removal of an electron from an atom. An ion could be positively charged or negatively charged. If the ion contains more electrons than protons then it is positively charged and vice versa.
An ion is positive when electrons are lost and the ion is negative when electrons are gained. In a negative charge, the electron cloud spreads out and the ion becomes larger. When we have a positive ion, the ion is smaller than the neutral atom.
Now, we can see that neon has an atomic number of 20 thus it has 10 electrons. If the ion contains one more proton then the atomic number of the element is 11. We are told that it contains two more neutrons hence the mass number is 22.
Given that the both species have the same number of electrons thus the ion must be sodium ion.
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This country has the most tornadoes in the world every year.
Canada
O United States
O Mexico
O England
Answer:
it's the United states
Explanation:
because It has alot of tornadoes
Lauric acid is an organic compound composed of 71.95% c, 12.08% h, and the rest oxygen. if 0.141 mol of lauric acid has a mass of 28.2 g, what are the empirical and molecular formulas of lauric acid? empirical formula:
If 0.141 MOL of Lauric acid has a mass of 28.2 g, the empirical formula of lauric acid is C₁H₂O₁. And the molecular formula of lauric acid is C₁₂H₂₄O₂.
What is the empirical and molecular formula?The empirical formula is the simplest whole number ratios of the moles of the compounds. They are the atoms present in the compound.
The molecular formula tells the total number of atoms present in the element of a compound.
The empirical formula of lauric acid is C₁H₂O₁. if 0.141 MOL of lauric acid weighs 28.2 g. Lauric acid's chemical formula is C₁₂H₂₄O₂.
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when an open cup of water sits in a table, it will evaporate over gime. do all liquids evaporate at the same rate? suppose you conduct an experiment to see how quickly water, rubbing alcohol and bail polish remover evaporate. describe theee important techniques you will have to follow to make sure your experminal procedure is repeatable and objective.
Answer:
Research Experiment
Abstract
The study is to investigate the rates of evaporation of liquids. It depends on the energy that the molecules possess. For the research, 4 beakers were filled with different liquids and made to stand for 7 days. The quantity left after the time period has elapsed determines the rate at which the liquids evaporate. Studying the individual characteristics of the liquids one could theorize the reason behind the varying rates of evaporation.
Introduction
The purpose of the experiment is to check whether different liquids evaporate at the same rate or not.
Problem Statement
Do all liquids evaporate at the same rate?
Hypothesis
Different liquids evaporate at different rates.
Materials
Orange juice
Alcohol
Nail polish remover
Water
4 beakers with graduations
Pen and paper
Step By Step Procedure
Pour 80 ml of each liquid in separate beakers.
Label the beakers with the names of the liquids
Place them in a dry location under room temperature.
Make a table on the paper to monitor the levels of the beaker for a week.
Name one similarity and one difference between simple diffusion and facilitated diffusion.
The movement of particles from an area of high concentration to an area of lower concentration is known as Diffusion. There are two types of Diffusion; simple diffusion and facilitated diffusion.
Simple diffusion and facilitated diffusion have some similarities and differences.
Both simple diffusion and facilitated diffusion are passive processes and do not require energy. They both deliver transport molecules in the direction of a concentration gradient.
There are also some differences. The speed of simple diffusion is low as compared to facilitated diffusion. Simple diffusion does not require the assistance of carrier molecules but facilitated diffusion does.
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How many covalent bonds are predicted for an atom of cl? enter your answer in the provided box.
Seven covalent bonds are predicted for an atom of cl.
covalent bonds are formed by the mutual sharing of electrons from the atoms taking part in the bonding. Atoms participating in a covalent bond share their valence electrons in a way to complete their octet rule.
A covalent bond depends on the number of electrons that are present in the valence shell. The formation of CH4, H2O, and NH3, are types of covalent bonding.
A chlorine atom has seven electrons in its valance shell so it can form seven covalent bonds.
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To make a water-insoluble substance water-soluble, a chemist could add groups with bonds between.
Answer:
atoms with a different attraction for electrons
Explanation:
A chemist can add groups with bonds between atoms that have distinct electron attractions to make a chemical that is not soluble in water into solution.
Thus, A medicine or substance that is water soluble is more easily absorbed by your digestive system.
Positive and negative energy are drawn together, creating a stable structure. Polar ions or compounds break down or disintegrate into smaller components when they are added to water. They may also dissolve and mix with the solution.
The various components of a compound are drawn to water's partial charges. It becomes more soluble in the water when attraction takes place.
Thus, a substance can become water soluble by introducing groups with bonds between atoms that have distinct electron attractions.
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The density of benzene at 15 °c is 0. 8787 g/ml. Calculate the mass of 0. 1500 l of benzene at this temperature. Enter your answer in terms of grams, but do not include units in the blank.
Using benzene density, the mass of benzene is 131.805 grams.
We need to know about the density to solve this problem. Density is a unit that measures how dense an object is. Density can be measured by dividing mass by volume. It can be written as
ρ = m / V
where ρ is density, m is mass and V is volume
From the question above, we know that
ρ = 0.8787 g/mL
V = 0.15 L = 150 mL
By substituting the following parameters, we get
ρ = m / V
0.8787 = m / 150
m = 0.8787 . 150
m = 131.805 grams
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The formula for potassium permanganate is K3MnO4. In this formula, how many potassium ions are present?
1
2
3
4
Answer:
the potassium permanganate formula is KMnO₄
Explanation:
Potassium permanganate, also known as permanganate of potash or Condy's crystals, is a chemical compound consisting of two ions: a potassium ion and a permanganate ion.
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The formula of potassium permagnet is KMnO₄, Therefore there is only one potassium ion is present in potassium permagnet.
What is ion ?An atom with a negative electrical charge is known as an ion. Generally, the charge of an electron is considered to be negative,this charge is equal to and equivalent to the charged of a proton, which is thought to be positive.
When an atom's number of protons and electrons is out of balance, ions are created. As a result, an atom that has acquired or lost one or more electrons and thus has a positive or negative charge is said to be an ion.
Potassium permanganate is made up of one potassium atom ( K ), one manganese atom ( Mn ), and four oxygen atoms, according to its chemical formula ( O ).
Therefore there is only one potassium ion is present in potassium permagnet.
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Write a balanced chemical equation for the standard formation reaction of solid calcium hydroxide caoh2
The balanced chemical equation for the standard formation reaction of solid calcium hydroxide CaOH2 is:
Ca + O2 + H2 → Ca(OH)2
The reactant components that are required in the standard states are calcium(Ca), Oxygen(O2), and hydrogen(H2). Oxygen and hydrogen are in their gaseous form and calcium is in solid state.
All of these reactants react to form Ca(OH)2 which is also known as slaked lime.
Ca + O2 + H2 → Ca(OH)2
This chemical equation is balanced because there are 1 Ca, 2 Oxygen atoms and 2 Hydrogen atoms on either sides.
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What are the effects on the bodies of water? use terms algal bloom, dead zone and hypotoxic
Water pollution is defined as the mixing of water with unwanted substances and that makes water unsafe.
Water pollution includes runoff of excess fertilizers,
herbicides, and insecticides from agricultural lands
and residential areas; oil, grease, and toxic chemicals
from urban runoff and energy production; and
sediment from improperly managed construction sites,
crop and forest lands, and eroding stream banks.
Polluted waters have high BOD which affects aquatic biodiversity.
Hpotoxic substances such as lead, arsenic, and fluoride cause many problems to aquatic animals and humans. Water contaminated with Arsenic results in diseases such as arsenicosis. Fluoride had been reported to cause depression in DNA and RNA synthesis in cultured cells, significant reductions in DNA and RNA levels, and conditions including aging, cancer, and arteriosclerosis are associated with DNA damage and its disrepair. Lead causes problems related to the central nervous system. Children and pregnant women are most at risk. Routine applications of fertilizers and pesticides for agriculture and uncontrolled runoff in water bodies. Adds nitrogen and phosphorus to water. It adds nitrogen and phosphorus to water causing eutrophication and algal blooms.
Therefore, all these activities make our water bodies a death zone for the marine ecosystem as well as humans.
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What word or two-word phrase best describes the shape of the formaldehyde ( ch2o ) molecule?
Trigonal planar two-word phrase best describes the shape of the formaldehyde ( ch2o ) molecule
In formaldehyde carbon has four valence electrons, so it tends to make four bonds in covalent compounds. oxygen has six valence electrons, but as it tends to accept two, it tends to make two bonds in covalent compounds. hydrogen is almost always going to make only one bond, given that it only has one valence electron. 4+2+6=12 valence electron . in formaldehyde molecule carbon is on middle and double with oxygen am=nd single bond with 1 hydrogen and single bond with 1 hydrogen this make shape of formaldehyde called trigonal planar.
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