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muminat
2 years ago
6

1010L

Chemistry
1 answer:
kobusy [5.1K]2 years ago
8 0

Answer:

2

Explanation:

a peace of metal may be heatedin a fire until it glows,but the metal is the same material before heating and after cooling

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A.) It is a well-tested hypothesis.

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Question 10 (1 point)
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The empirical formula gives the relative ratio of atoms in each element. Therefore, it simplifies the whole numbers. For example C2H6 can be reduced to CH3 because they share the greatest common factor (2). The answer to this question would be #1. C4H10 can be reduced to C2H5 because 4 and 10 are both divisible by 2. C2H5 can not be reduced any further. All of the other options do not have a greatest common factor making them a empirical formula.
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NEED HELP ASAP
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I'll see what I can do here...

1) Nonmetal

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3) Hafnium

4) 204.3833 u

5) Not sure what you're asking, but oble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og)

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8) 33

9) 88

10) 30

Hope this helps!

8 0
3 years ago
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40. Write a balanced equation and a net ionic equation for combining AgNO3(aq) and Na2CO3(aq)
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2AgNO3 (aq) + Na2CO3 (aq) --> Ag2CO3 (s) + 2NaNO3 (aq)

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