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4 years ago

A solid is added to a liquid in a flask.

Chemistry

1 answer:

Dmitry [639]4 years ago

6 0

Answer:

C. the solid dissolves after it is added to the liquid

Explanation:

Why, you may ask? Because endothermic reactions absorb energy by undergoing change. And that solid, just absorbed energy.

When something melts, the molecules inside the substance receive more and more energy, until the substance's molecules have enough energy to vibrate and wiggle past each other, breaking their structure. if the solid is receiving more energy from its surroundings, aka the liquid, the reaction is in fact absorbing energy. And if a reaction is absorbing energy, it's an endothermic reaction.

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Katarina [22]

Answer:

a covalent would be the two that are nonmetals

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3 years ago

1What is one major difference between fossil fuels and biofuels?

Margarita [4]

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3 years ago

Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what

Bogdan [553]

Answer:- 0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = $(\frac{mass of Ag}{mass of alloy})*100$

Mass of Ag = 17.6 g

mass of Cu = 2.40 g

mass of alloy = 17.6 g + 2.40 g = 20.0 g

Let's plug in the values in the formula:

mass percentage of Ag = $(\frac{17.6}{20.0})*100$

mass percentage of Ag = 88%

So, the mass percentage of silver in sterling silver is 88% and in decimal form it is 0.88.

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3 years ago

What are some possible consequences if transgenic salmon would escape from their pens into the ocean population?

Elenna [48]

Answer:

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Explanation:

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2 years ago

What are the effects of acid precipitation in city centers

Rus_ich [418]

Answer:

Answer to the following question is as follows.

Explanation:

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The acidic particles damage metal and accelerate the deterioration of paint and stone. They also make buildings and other structures, like as monuments, filthy.

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3 years ago