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Darya [45]
2 years ago
9

1)A government meets to discuss policies about controlling pollution. Which is the most appropriate type of information for the

government to use to make decisions?
a)stories from other government
b)research reports containing scientific data
c)guesses about the impact of pollutants
d)personal anecdotes from citizens
2)A patient reports side effects from a medication. A government committee learns about the side effects and decides the medication is not safe for public use. Did the committee use science to make the decision?
a)Yes; the committee used research.
b)No; the committee used an anecdote.
c)Yes; all medicine is science.
d)No; committees use rules, not science.
3)Which type of research might result in a law that restricts hunting of a particular species?
a)research showing a decrease in the popularity of hunting
b)research showing the species is harmful
c)research showing an increase in the population of the species
d)research showing the species is endangered in other geographical areas
4)Which statement best explains why a rare disease would get more research funding than a more common disease?
a)Diseases that affect more people tend to get more funding.
b)Sufferers of the rare disease ran a public awareness campaign.
c)Organizations are concerned about the results of the research into the rare disease.
d)Organizations are concerned about the results of the research into the rare disease.
5)A corporation funds scientific research to develop a fabric treatment that absorbs harmful rays from the sun. Which product does the corporation most likely manufacture?
a)garden tools
b)sunscreen
c)patio umbrellas
d)batteries
Chemistry
1 answer:
MA_775_DIABLO [31]2 years ago
4 0

The most appropriate type of information for the government to use to make decisions is research reports containing scientific data.

<h3>What is pollution?</h3>

The term pollution has to do with the introduction of materials and energy that are harmful to the environment and also the fauna and flora.

1) The most appropriate type of information for the government to use to make decisions is research reports containing scientific data.

2) If the government committee learns about the side effects and decides the medication is not safe for public use, then the committee used an anecdote and did not use science to make the decision.

3) The type of research that might result in a law that restricts hunting of a particular species is research showing the species is endangered in other geographical areas

4) The statement that explains why a rare disease would get more research funding than a more common disease is; "organizations are concerned about the results of the research into the rare disease."

5) The product that the corporation is most likely manufacture is a sunscreen.

Learn more about pollution:brainly.com/question/23857736

#SPJ1

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3 years ago
If an atom has 7 protons, 8 neutrons, and 10 electrons, then it has a net charge of . On the other hand, if an atom has 3 proton
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Answer:

Neutrons play no role in the net charge of an atom, so you can ignore them here.

Proton = 7

Electron = 10

Net Charge = 7 - 10

= -3

Again,

Proton = 3

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An unknown substance with a mass of 100 grams absorbs 1000 J while undergoing a temperature increase of 15 C. what is the specif
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An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d = 1.114 g/mL; M = 62.07 g/mol) and water
maks197457 [2]

Answer :

(a) The volume percent is, 50.63 %

(b) The mass percent is, 52.69 %

(c) Molarity is, 9.087 mole/L

(d) Molality is, 17.947 mole/L

(e) Moles fraction of ethylene glycol is, 0.244

Explanation : Given,

Density of ethylene glycol = 1.114 g/mL

Molar mass of ethylene glycol = 62.07 g/mole

Density of water = 1.00 g/mL

Density of solution or mixture = 1.070 g/mL

According to the question, the mixture is made by mixing equal volumes of ethylene glycol and water.

Suppose the volume of each component in the mixture is, 1 mL

First we have to calculate the mass of ethylene glycol.

\text{Mass of ethylene glycol}=\text{Density of ethylene glycol}\times \text{Volume of ethylene glycol}=1.114g/mL\times 1mL=1.114g

Now we have to calculate the mass of water.

\text{Mass of water}=\text{Density of water}\times \text{Volume of water}=1.00g/mL\times 1mL=1.00g

Now we have to calculate the mass of solution.

Mass of solution = Mass of ethylene glycol + Mass of water

Mass of solution = 1.114 + 1.00 = 2.114 g

Now we have to calculate the volume of solution.

\text{Volume of solution}=\frac{\text{Mass of solution}}{\text{Density of solution}}=\frac{2.114g}{1.070g/mL}=1.975mL

(a) Now we have to calculate the volume percent.

\text{Volume percent}=\frac{\text{Volume of ethylene glycol}}{\text{Volume of solution}}\times 100=\frac{1mL}{1.975mL}\times 100=50.63\%

(b) Now we have to calculate the mass percent.

\text{Mass percent}=\frac{\text{Mass of ethylene glycol}}{\text{Mass of solution}}\times 100=\frac{1.114g}{2.114g}\times 100=52.69\%

(c) Now we have to calculate the molarity.

\text{Molarity}=\frac{\text{Mass of ethylene glycol}\times 1000}{\text{Molar mass of ethylene glycol}\times \text{Volume of solution (in mL)}}

\text{Molarity}=\frac{1.114g\times 1000}{62.07g/mole\times 1.975L}=9.087mole/L

(d) Now we have to calculate the molality.

\text{Molality}=\frac{\text{Mass of ethylene glycol}\times 1000}{\text{Molar mass of ethylene glycol}\times \text{Mass of water (in g)}}

\text{Molality}=\frac{1.114g\times 1000}{62.07g/mole\times 1kg}=17.947mole/kg

(e) Now we have to calculate the mole fraction of ethylene glycol.

\text{Mole fraction of ethylene glycol}=\frac{\text{Moles of ethylene glycol}}{\text{Moles of ethylene glycol}+\text{Moles of water}}

\text{Moles of ethylene glycol}=\frac{\text{Mass of ethylene glycol}}{\text{Molar of ethylene glycol}}=\frac{1.114g}{62.07g/mole}=0.01795mole

\text{Moles of water}=\frac{\text{Mass of water}}{\text{Molar of water}}=\frac{1g}{18g/mole}=0.0555mole

\text{Mole fraction of ethylene glycol}=\frac{0.01795mole}{0.01795mole+0.0555mole}=0.244

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a

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