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lapo4ka [179]
3 years ago
7

Can i have someone do this its my birthday and im giving a brainlist

Chemistry
1 answer:
MrRa [10]3 years ago
6 0

Answer:

1.) density can be defined as the mass of the substance in unit volume

density=mass/volume

2.)2.70g/mL

mass of the block =146

length× width×height=54cm=54mL

density=mass/volume =146 g/54 mL =2.70 g/mL

3.) 3.39 g/mL

4.)Accepted value is the value that scientists and community accept as true. This is a theoretical value.

5.)Percent error is 9.11 % The element which has 7.13 g/cm³ as density is Zinc (Zn).

Explanation:

I helped my brother with it and he got it right let me know if it was right for you too:)

thank me if it was

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Answer:

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Answer:

D) There must be equal number of atoms of each elements on both sides of equation.

Explanation:

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Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

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there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

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