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3 years ago

State at least three different properties of metallic compounds?

Chemistry

2 answers:

KATRIN_1 [288]3 years ago

7 0

Answer:

Very High melting and boiling points

Very Good Conductors of heat and electricity

Malleable (can be made into different shapes without breaking)

Ductile (can be molded into wiring)

Metallic luster (shiny)

Sometimes magnetic

Explanation:

horsena [70]3 years ago

5 0

Answer:

Very High melting and boiling points.

Very Good Conductors of heat and electricity.

Malleable (can be made into different shapes without breaking)

Ductile (can be molded into wiring)

Explanation:

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Andreas93 [3]

2H2O --> 2H2 + O2
The mole H2O:mole O2 ratio is 2:1
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3 years ago

What is the percent composition of hydrogen in NH4HCO3?

Readme [11.4K]

To find the Percent Composition of an atom, you use this formula:
Mass of element in the compound you're studying on ( in this case it's 5 since there is 5 Hydrogens) over the mass of the compound (which is here 79), Multiplied by 100 since you want a percent.
So we get:
$\frac{5}{79} * 100$
So you get about:
$0.063 * 100$
$6.3$

So, the percent composition of Hydrogen in NH4HCO3 is 6.3%

Hope this Helps! :D

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Mass of One Water Molecule? The answer says the mass of one water molecule is 2.99 X 10^-23

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