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motikmotik
3 years ago
5

Question 7

Chemistry
1 answer:
Rufina [12.5K]3 years ago
4 0

Answer:

The 4 physical changes are. 1) Melt, 2) Evaporate, 3) Dissolve, 4) Bend.

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Which of the following shows how rate depends on concentrations of reactants?
Katarina [22]

Answer:

Rate = k(A)m(B)n

Explanation:

A.P.E.X.

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What will happen if there is an insufficient supply of oxygen during the combustion of a hydrocarbon?
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As long as there is some oxygen, the reaction will occur. If there is an insufficient amount of oxygen, then the oxygen will be the limiting reacting and there will be excess of the other reactants. 
8 0
3 years ago
Please answer!
evablogger [386]
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6 0
3 years ago
What is the mass of 1.7 × 1023 atoms of zinc
fiasKO [112]

We are given with a compound, Zinc (Zn) having a 1.7 x 10 ^23 atoms. We are tasked to solve for it's corresponding mass in g. We need to find first the molecular weight of Zinc, that is

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Not that 1 mol=6.022x10^{23} atoms, hence,

1.7 x 10 ^23 atoms x 1 mol/6.022x10^{23} atoms x65.38 g/ 1mol

=18.456 g of Zn

 

Therefore, the mass of Zinc 18.456 g

3 0
2 years ago
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