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2 years ago

Which is a positive effect of using chemistry?

Chemistry

1 answer:

bogdanovich [222]2 years ago

4 0

The positive effect of using chemistry is the generation of energy without fossil fuels.

Chemistry is the branch of science that deals with the study of the nature, properties and composition of matter as well as the changes that matter undergoes. Chemistry has really contributed positively to the advancement of the society.

Lately, there has been a lot of emphasis on alternative sources of energy apart from fossil fuels. One such options is the use of hydrogen fuels. Chemistry has been at the forefront of this research.

Hence, one positive effect of using chemistry is that energy can be generated without burning fossil fuels.

Learn more: brainly.com/question/2192784

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What is a correct expression of the law of conservation mass

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Law of conservation of mass- The total mass after a chemical reaction is exactly the same as the mass before.

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3 years ago

Explain why ply(ethene) can become a pollutant?

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3 years ago

If a black ball is denser than a white ball of the same size, what does the black ball have??

yKpoI14uk [10]

Answer: The black ball will have more mass than the white ball.

Explanation: Density of a substance is defined as the ratio of mass and volume occupied by the substance.

Mathematically,

$Density=\frac{Mass}{Volume}$

We are given that the two balls are of same size, which means that the volume of both the balls are same. We are also given that the black ball is more dense than the white ball, which means that the black ball will have more mass.

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3 years ago

A rigid container of gas has a pressure of 1.72 atm and temperature of 21 oC. If the temperature increases to 85 oC, what is the

Vinil7 [7]

Answer:

the new pressure is 2.09 atm

Explanation:

you have to use gay lussac's law so the formula is

p1/t1 = p2/t2

and convert C to Kelvin k=C+273.15

1.72atm/294.15 = p2/358.15

solve for p2 by multiplying 358.15 on both sides

p2=2.09 atm

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3 years ago

What term best describes the type of reaction that happens when a single element reacts with a molecule or compound, producing a

gogolik [260]

The answer is

C. A single replacement reaction (acid reactions)

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K+H2O --> KOH

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3 years ago

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