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irakobra [83]
2 years ago
13

How does solidification of alloys differ from solidification of pure metals?.

Chemistry
1 answer:
jarptica [38.1K]2 years ago
6 0

Answer:

Solidifications of alloys occurs over a range of temperatures whereas solidification of a pure metal will take place at a constant temperature

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A circuit breaker must be replaced after too much current flowing through it causing it to melt.
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3 years ago
A chemical reaction produces formaldehyde, with a chemical formula of CH2O. Carbon is in group 4A, Oxygen is in group 6A, and Hy
steposvetlana [31]

Answer:

Explanation:

carbon in  group 4A needs 4 more electrons to be stable

hydrogen in group 1A has one electron needs 1 more t o be stale

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They all obtain this by sharing electrons  8 around C &O, 2 around H

H  : C:  H

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      :O:

5 0
3 years ago
Which formula can be used to calculate the theoretical yield?
Bas_tet [7]

Answer:

Option C, (Actual yield ÷ percent yield) × 100

Explanation:

Theoretical yield is defined as the total amount of product formed for given reactants in a chemical reaction.  It is an ideal case which assumes no exceptions or wastage.

The mathematical relation between the actual yield, percent yield and theoretical yield is as follows -

P.Y. = \frac{M_{A.Y.}}{M_{T.Y.}} * 100

Where

P.Y. represents the percent yield a

M A.Y. represents the mass obtained from actual yield

M T.Y. represents the mass obtained from theoretical yield

Hence, if we rearrange the formula, we get -

M_{T.Y.} = \frac{M_{A.Y.}}{P.Y.} * 100

Hence, option C is correct

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3 years ago
Notice what happens to the numbers of protons, neutrons, and electrons when you
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Answer:

Only the number of neutrons change.

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4 years ago
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Answer:

the answer is D.

Explanation:

your welcome :)

4 0
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