Answer:
down below
Explanation:
The police's influence can happen based on a response to a problem. An example is when the police are called because of a thief child. If the police handles the situation correctly-using reasonable force, if necessary, and reading them their rights- the public will perceive the police in a good light or way. If the police use gross misconduct and do not go by the book, then they will be perceived as an enemy or in a bad light or way.
DHMO can be lethal (deadly) to humans in small doses.
O True
O False
Yes, DHMO (Dihydrogen monoxide) can be lethal (deadly) to humans in small doses. It's true.
Briefing :Dihydrogen monoxide is a known cause of thousands of deaths each year and contributes significantly to the millions of dollars in environmental and property damage. Dihydrogen monoxide is known to pose several risks, including:
Death from accidental DHMO inhalation, even in small amounts.Solid DHMO exposure over an extended period of time harms tissues severely.A number of unpleasant, but typically not life-threatening, side effects result from excessive ingestion.Acid rain primarily consists of DHMO.Severe burns can result from DHMO gas.Causes soil erosion to occur.To know more about soil erosion :
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Three girls raced their model cars down a
40-meter track. Their times are in the table.
What was the average speed at which the
cars rolled down the track?
The average speed at which the cars rolled down the track 4.28 m/s
Average Speed is defined as Total Distance Traveled ÷ Total Time Taken . SI unit of average speed is meter per second ( m/s).
Average Speed = total distance traveled ÷ total time taken
we have , jessica's car travelled 40 m in 10 sec
kristi's car travelled 40 m in 20 sec
laticia's car travelled 40m in 8 sec
Average Speed = total distance traveled ÷ total time taken
so, = 40+40+40 ÷ 10+20+8
= 120÷28
= 4.28 m/s
average speed is a scalar quantity. It is represented by the magnitude and does not have direction.To know more about average speed visit :
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Determine the number of protons, neutrons, and electrons present in each of the atoms.
53 Cr
protons:
neutrons:
electrons:
Answer:
protons: 24
neutrons: 29
electrons: 24
Explanation:
How many atoms of nitrogen are there in one mole of nitrogen dioxide?
Express your answer in number of atoms to four significant figures.
Answer:
All objects in the universe are made up of atoms. The number of atoms that can make up even a small object make up an incredibly large and unfathomable number, on the order of 10231023 atoms. The mole measurement was created in order to more easily deal with the number of atoms in a given substance. One mole is equal to 6.022 × 10236.022 × 1023 atoms.
Is AgNo3 an allotrope or a polymorph?
AgNo3 is a polymorph as it can be many forms.
PolymorphA substance's capacity to crystallize into various crystalline forms is known as polymorphism. These crystal modifications are also referred to as polymorphs. Polymorphs behave differently in the solid state even though they are the same in the liquid or gaseous states.
Allotrope :The ability of some chemical elements to exist in two or more different forms, in the same physical state, is known as allotropy or allotropism. These forms are referred to as the element's allotropes. Allotropes are different structural modifications of an element in which the bonding between the atoms is altered.
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Carbon monoxide (CO) is a poisonous gas because it binds very strongly to the oxygen carrier hemoglobin in blood. A concentration of 8.00 × 102 ppm by volume of carbon monoxide is considered lethal to humans. Calculate the volume in liters occupied by carbon monoxide in a room that measures 20.35 m long, 13.17 m wide, and 17.25 m high at this concentration.
Volume of CO in the room:
Answer:
Explanation:
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(Trial 1)
Convert mass to moles for both reactants. (round to 2 significant figures.)
2.50 g CuCl equals
moles
0.50 g Al equals
moles
DONE
Answer:
CuCl has 0.025 and Al has 0.018 moles
Answer:
.019 and .0093
Explanation:
3 The chemical compositions of two substances, W and X, are given.
W Na(AISI³)O8
X Ca(Al₂Si₂)08
Which statements are correct?
1 W and X contain the same amount of oxygen.
2 W contains three times as much silicon as X.
3 X contains twice as much aluminium as W.
A) 1 and 2 B) 1 and 3 C) 2 and 3 D) 1, 2 and 3
Answer:
D) 1,2 and 3 is the answer
When 10g of hydrogen gas is combined with 26g of nitrogen gas to form ammonia, what is the limiting reagent?
the limiting reagent is nitrogen gas.
steps:
write out balanced equation: 3H2 + N2 = 2NH3
convert to moles to find how much NH3 each yields
find molar mass of each
10 g H2 (1 mol/2.016g) (2NH3/3H2) = 3.31 mol NH3
26g N2 (1mol/28.02g)(2NH3/1N2)=1.86 mol NH3
since N2 yields less NH3, it is the limiting reagent.
Complete this analogy: Competition is to ____________as_
is to food webs. *
Answer:
Competition occurs when individuals of different species struggle to obtain the same resource in an ecosystem (such as food or living space). Adaptations, such as physical mutations and behavior modifications, can help an organism outcompete its competitors.
Identify the arrows that represent the process of cooling.
liquid
gas
solid
The arrows B, C, and E represent the process of cooling.
Solid state: In the solid state, the molecules are arranged in a regular and fixed pattern. The molecules in a solid are closely packed that is the solid particles can not move.
Liquid state: In the liquid state, the molecules are present in an irregular pattern. The molecules are closely packed but particles can move.
Gaseous state: In the gaseous state, the molecules are present in an irregular manner. The molecules of gases are not closely packed and can move freely.
Therefore, the solid changes to liquid on heating, and the liquid changes to solid after cooling.
Liquid changes to a gaseous state on heating while gases changes to liquid on cooling.
Solid changes to gas on heating and gases change to solid after cooling.
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Given that the density of gold is 19.3 g cm-3, calculate the volume, V, of a gold nugget with a mass of 4.74 g.
how many elements are present in the compound
go play mine craft use code wild ............................
a student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks , how could this affect the calculation
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
How would this affect the calculation?We know that evaporation involves the heating a sample of a substance until all the water in it leaves and it remains only the crystalline solid. The whole water would evaporate and the mass of the sample would decrease.
When the student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks, the particles of the glass would mix with the dried salt and increase the mass of the dried salt.
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
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calculate the energy required to excite an electron from n=2 to n=4
Explanation:
taking atom as hydrogen than
answer is +2.55
just apply Delta energy=energy in 4th orbit -energy in 2nd orbit
[tex]energy = - 13.6 \times z ^{2} \div n {}^{2} [/tex]
so here you can find answer
Rene grew bacteria from mouth on special plates in the lab she placed drops of different mouthwashs on bacteria on each plate
The correct answer is Test the hypothesis with an experiment.
Rene grew bacteria from mouth on special plates and now she is conducting a research on those bacterias by dropping different mouthwash on them to find out effect of mouthwashes on bacteria. This comes under the category of test the hypothesis with an experiment. When performing experiments and investigating observations, the scientific method is a technique that is used.This method's objective is to identify the connections between cause and effect in diverse contexts and applications.There are total seven steps of scientific method:Ask the questionPerform research Establish your hypothesisTest your hypothesis by conducting experimentMake an observation Analyse the result and draw the conclusionPresent the findingsThe key goal of 4th step is to gather information and facts to test our idea.
Therefore, Rene is on the 4th step of scientific method.
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A stone with a mass of 10 kg sits on the ground. Gravity acts on the stone at a rate of 9.8 m/s2. What is the normal force
acting on the stone, keeping it at rest? (1 point)
O 1.02 N
O 9.8 N
O 10 N
O98 N
Answer:
Fn = m x g
Fn = normal force
m = mass of the stone
g = gravitational force acting on the stone.
therefore, fn=m x g = 10kg x 9.8m/s2 = 98 kgm/s2 or 98 N. Which is the same as 098 N.
Explanation:
A stone with a mass of 10 kg sits on the ground. The normal force acting on the stone, keeping it at rest, is 98 N. The correct option is D.
What is force?A force is a power that changes the position of an object. This results in the action or movement of any object. Force is calculated in Newton. The force can be calculated by multiplying the mass by acceleration.
Given, the mass of the stone is 10 kg
The gravitational force act at the rate of 9.8 m/s²
The formula is
Force = mass x gravitational rate
Fn = normal force
m = mass of the stone
g = gravitational force acting on the stone
So, fn = m x g
10kg x 9.8 m/s²
98 kg m/s²or 98 N
Therefore, the normal force acting on the stone, keeping it at rest, is 98 N. The correct option is D.
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When a large object fell into a full swimming pool, it displaced 33.8 gallons of water. The density of the object is 1.65 g/mL. What is the object's weight in pounds?
If the density of the object is 1.65 g/mL. The object's weight in pounds m = 483.32 pounds.
what is density ?The density can be defined as the mass per unit volume which can be described it is the ratio between mass and volume.
Density is a measurement of matter, where it determine how tightly the matter is bond together, discovered by the Greek scientist Archimedes.
To calculate the density of an object, Density = Mass/Volume
The density of the object is 1.65 g/mL, Volume of the water is 35.1 gallons
1 gallon = 3785.41 mL
35.1 gallons = 132868 mL
1 pound = 453.592 grams
So, 219232.2 grams = 483.32 pounds weight.
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Which of the following atoms has the highest ionization energy?
Aluminum (Al)
Sodium (Na)
Phosphorous (P)
Magnesium (Mg)
The phosphorus atom have has the highest ionization energy .
The ionisation energy of atoms are given as ,
Sodium ( Na ) = 496
Phosphorus ( P ) =1012
Magnesium (Mg ) =738
Aluminium ( Al ) = 578
Since , phosphorus atom have half filled configuration . It is very difficult to remove electrons from atoms having half filled configuration . Hence, it requires more energy .
The ionisation energy measures an element's ability to participate in chemical processes that call for the creation of ions or the donation of electrons. It is often connected to the type of chemical bonds that exist between the components in the compounds they form. See also electron affinity and binding energy.
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Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific. However, many advertisements make statements or conclusions that are not entirely true. Advertisements sometimes exaggerate, which means they make a statement that a product is or does more than is actually true.
When deciding if an advertisement is true, look for other data that supports these claims. The data should come from peer-reviewed journals or trusted science textbooks.
Research a product you see advertised. What claim does it make? Does other scientific data support this claim? Decide if the claim is factual, fictional, or an exaggeration. List your sources to show your inference.
Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific and it makes the claim as factual, and fictional as well as an exaggeration.
Advertising must be truthful and must not deceive consumers. If important details are omitted or the assertion implies something untrue, it may be misleading. For instance, if substantial and hidden fees are payable upon lease signing, a leasing advertisement for an automobile that advertises "$0 Down" may be deceptive.
Additionally, statements must be supported, particularly when they relate to performance, safety, or health. Depending on the product, the claims, and what experts deem necessary, the type of evidence may vary. Following is the list of sources to show the inference of the product advertised,
Advertisements cannot be unjust; they must be genuine and non-deceptive; they must also be supported by proof. Ads promoting specialist products, including consumer leases, credit, 900 phone lines, and items sold through mail order or telephone sales, are subject to additional rules. Additionally, each state has consumer protection regulations that apply to advertisements running there.Learn to know more about advertisements on
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If 31.5 grams of bromine and 14.0 grams of chlorine combine to form bromine monochloride, how many grams of bromine monochloride must form?
The correct answer is 45.21 g.
This issue will be resolved with the aid of the idea that chemical equilibrium is the rate of reversible processes at which the concentration of the reactants and products does not vary over time. The rate of reaction is exactly proportional to the raised to the power equal to the relevant stoichiometric coefficient, states the law of mass action.
Bromine monochloride is created when 31.5 grammes of bromine and 14.0 grammes of chlorine react.
Br2 + Cl2 ---> 2BrCl
mol Br2= 31.5/160g/mol= 0.196mol
mol Cl2= 14g/70.906g/mol= 0.197mol
Number of moles of BrCl formed = 2×0.196= 0.392 mol.
mass BrCl= 0.392 mol x 115.357g/mol= 45.21 g
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6. How can an answer from an experiment be verified?
Redo
Explanation:
if the experiment is been done twice or more and if gives the same answer the experiment is verified
A sextant resembles which mathematical instrument?
Answer:
quadrant
Explanation:
sextant (astron.) instrument resembling a quadrant having a graduated are equal to ⅙ of a circle.
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People are looking to see why some people get bit more by mosquitos than others. Some people have
wondered if the scent of their perfume can have an effect on how often they are bit.
a)
independent variable:
b) dependent variable:
c) three possible constants in the
scenano
Answer:
see bellow..
Explanation:
a) independent variable ; the specific scents being used (like vanilla, or blueberry etc.)
b) how much of it is sprayed
c) the weather, brand of perfume, record time
An element has 3 naturally occurring isotopes. Isotope 1 has a relative
abundance of 12.99% and isotope 2 has a relative abundance of 40.49%.
What is the relative abundance of isotope 3?
The correct answer for relative abundance of isotope 3 is 46.52%.
Let's consider element X, which has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isotope 2 with a relative abundance of 40.49% and isotope with an unknown relative abundance.
Assuming there are only 3 isotopes of element X, we know that the sum of the relative abundances of them is equal to 100%. The relative abundance of isotope 3is:
ab(isotope 1) + ab(isoptope 2) + ab (isotope 3) = 100 %
isotope 3 = 100% - (12.99% + 40.99 % )
isotope 3 = 46.52 %
Element X has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isoptope 2 with a relative abundance of 40.49% and isotope 3 with a relative abundance of 46.52%.
The percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element is known as its relative abundance.
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calculate the molar mass of Na2S2O3.5H2O
Answer:
248
Explanation:
Na2 = 23 x 2
S2 = 32 x 2
O3 = 16 x 3
5h20 = 5 x (2+16)
add these and u get 248
What is the overall chargeon particles with the subatomic makeups given if there are3 protons, 3 neutrons, and 2 electrons?
Answer:
+1
Explanation:
The neutrons do not affect the overall charge of the particle. Protons have a positive charge and electrons have a negative charge. Since the protons outnumber the electrons by one, there is an overall charge of +1.
Here is a more in depth explanation: if there are 3 protons, each which have a value of +1, the protons contribute a +3 charge. If there are 2 electrons, each which have a value of -1, the electrons contribute a -2 charge. When you add these two charges, you are left with an overall charge of +1 (+3 + (-2) = +1).
0.3060 x 10^17 atoms of Kr(g) = how many moles ?
There are 0.05 x [tex]10^{-6}[/tex] number of moles of Kr(g) having 0.3060 x [tex]10^{17\\}[/tex]atoms .
A mole is 6.02214076 x 1023 of any chemical unit, including atoms, molecules, ions, and others. Due to the large number of atoms, molecules, or other components that make up any substance, the mole is a useful measure to utilize.
Calculation .
One mole of the any atoms contains 6.022 x [tex]10^{23}[/tex] atoms .
So , the number of moles of Kr(g) having 0.3060 x 10^17 atoms is calculated as ,
number of moles of Kr = 0.3060 x [tex]10^{17\\}[/tex]atoms x 1 mole / 6.022 x [tex]10^{23}[/tex]atoms
number of moles of Kr = 0.05 x [tex]10^{-6}[/tex] mole
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Select the correct answer.
According to Newton's law of universal gravitation, what is the effect of gravity on two objects as the distance between them increases?
OA. The force of gravity increases.
OB. The force increases by twice the previous amount.
OC. There is no effect on the force of gravity.
O D. The force of gravity decreases.
Answer:
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
Answer:
The force of gravity decreases.
Explanation:
Plato/Edmentum
Please help! I don’t know what 4 and 5 is