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zhuklara [117]
3 years ago
10

I have asked this already!!!!!

Chemistry
1 answer:
stellarik [79]3 years ago
6 0

Answer:

01) Cu tting hair is a physical change. reason-1

02) Cooking can be either one, but I would choose chemical reason-3

03) Ice cream melting is a physical change reason-2

Explanation:

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A compound is found to contain 33.3%
kakasveta [241]

Answer: CaSO3

Explanation:Please see attachment for explanation

3 0
4 years ago
What is the empirical formula for C2H6?<br> CH<br> CH3<br> C2H4<br> C6H18
Ket [755]

Answer:  CH3

Explanation:  Because if we double each element count, we arrive at C2H6.  CH3 is the empirical formula.

5 0
3 years ago
What is the molar mass of F^2​
amm1812

F2 means that there are two flourine's usually a gas is a diatomic molecule.

Since a fluorine molecule has an atomic mass of 18.998 that molar mass of F2 would be 18.9998 *2 = 37.996 except in molar mass the units change so instead of being g/mol it would just be grams.

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hope this helps!

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8 0
3 years ago
Using the periodic table, find the molecular mass of H2. H2 = g/mole
alekssr [168]
MH₂ = 2×mH = 2×1g = 2 g/mol
5 0
3 years ago
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wlad13 [49]

f = 40 Hertz

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frequency = velocity/wavelength

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20/0.50 = f

40 Hertz = f or f = 40 Hertz

7 0
3 years ago
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