CHEMISTRY MIDDLE SCHOOL

Why do you think knowing enthalpy of reaction might be useful?


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Answers

Answer 1
Answer:

Answer:

It allows scientists to predict the temperature change during a reaction.

It allows scientists to determine how much of a reactant is necessary to produce a certain amount of energy.

It allows scientists to predict whether a reaction might produce dangerous amounts of heat.

Explanation:
Answer 2
Answer:

Answer:

It allows scientists to predict the temperature change during a reaction.

Explanation:

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Please help me ASAP! Giving out a nice amount of points! Correct answer gets Brainliest! :D Which would be a good example to demonstrate the principle of conservation of energy?A) A stone is crushedB) Light bends around a sharp edgeC) A pendulum swings back and forthD) A balloon inflates when air is blown into it
PLS ANSWER BEFORE MIDNIGHT 20 POINTS

What is the formula for vandium oxide

Answers

V2O5 hope this helped!!!!

Which is an example of a compound ?
Water
Gold
Sand
Iodine

Answers

Answer:

the answer is water

Answer: water

Explain: Gradpoint

As the water is cooled, at what temperature do its particles become fixed in place?

Answers

If you mean at what point do water particles are in one specific place, then the answer is at its freezing point.
Freezing point: 0 degrees

In an ionic compound, how does the pattern formed by the ions change as the crystal gets larger?

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Answer:

Explanation:

It is unchanged.                                    

Explanation:

This is an excerpt from my lesson in science:

In an ionic compound, every ion is attracted to ions of opposite charge that surround it. It is attracted to ions above, below, and to all sides. The pattern formed by the ions remains the same no matter what the size of the crystal.

In a single grain of salt, the crystal pattern extends for millions of ions in every direction. Many crystals of ionic compounds are hard and brittle due to the strength of their ionic bonds and the attractions among all the ions.

Hence, it is unchanged.                                      (Brainliest Please and 5 stars)

Answer:

It is unchanged

Explanation: gradpoint

The pattern formed by the ions remains the same no matter what the size of the crystal.

What is a chemical property

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any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Material's feature  that becomes visible in a chemical reaction.

Which of the following foods is likely lowest in nutritional value and highest in fat?

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Tomato Suop Creamchsee almonds and pears
If i were to guess personally, i'd say the tomato soup, because of the salt content. But i'd look up all of the answers and see personally before answering.It's either that one, or cream cheese, because cheese is very fatty.
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