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grin007 [14]
3 years ago
14

True or false: Observing a physical property of a substance will change the substances' identity I NEEED HELLLPPPPP NOOOWWWW !!!

! PLEASEEEEE
Chemistry
1 answer:
andrew11 [14]3 years ago
8 0

Answer:

false

Explanation:

a physical property can be observed and stay the same but a chemical property can't

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Explanation:

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When a paper towel absorbs water, is it a physical or chemical change?
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Explanation:

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3 years ago
How many molecules of ammonia are formed in the following equation: N2+3H2→2NH3
Katena32 [7]

Answer:

  • <u>two molecules of ammonia are formed by the reaction of one nitrogen and three hydrogen molecules.</u>

Explanation:

The  balanced chemical equation provides information on:

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  • <u>Products</u>: those are the compounds that appear on the right side of the equation, again, each with its chemical formula.

  • <u>Ratio</u>: the coefficients of each compound (the number to the left of the chemical formula) represent the ratio of the number of molecules that react and are formed.

In the given equation you have:

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Solid lithium (Li) reacts with water to produce hydrogen gas (H) and a solution of lithium
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Answer:

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Explanation:

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