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lakkis [162]
3 years ago
11

Why is knowing the melting point of metals important

Chemistry
1 answer:
Svetach [21]3 years ago
7 0
The melting and boiling point of a substance is important to know because with that information you can identify exactly which element is which because elements have specific melting points. 

It is also important to know about because it indicates compound purity.

I hope this helps you! :)
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andre [41]

The atomic number is the same as the amount of electrons and protons. For example:
Oxygens atomic number is 8 so the proton and electron count is 8.
Hydrogens atomic number is 1 so the proton and electron count is 1.
3 0
3 years ago
CAN SOMEONE HELP ME WITH THESE QUESTIONS I WILL GIVE ALL MY POINTS 5 STARS AND THANKS AND BRAINLY ALL I ASK IS WHENN YOU ANSWER
ira [324]
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7 0
3 years ago
A sample of rest of the following composition 51.85 g of iron 22.22 g of oxygen 16.67 g of water
valentinak56 [21]

Answer:

To calculate the percent composition, we need to know the masses of C, H, and O in a known mass of C9H8O4. It is convenient to consider 1 mol of C9H8O4 and use its molar mass (180.159 g/mole, determined from the chemical formula) to calculate the percentages of each of its elements:

%

C

9

mol C

×

molar mass C

molar mass

C

9

H

18

O

4

×

100

=

9

×

12.01

g/mol

180.159

g/mol

×

100

=

108.09

g/mol

180.159

g/mol

×

100

%

C

60.00

%

C

3 0
2 years ago
What is your most convincing piece of evidence?
Sedaia [141]

Answer:

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Explanation:

7 0
3 years ago
Is N2H4 polar, nonpolar, or ionic?
Fynjy0 [20]
<span>N2H4 is a polar molecule </span>
7 0
4 years ago
Read 2 more answers
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