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prohojiy [21]
3 years ago
12

Most chemical bonds are

Chemistry
1 answer:
Lilit [14]3 years ago
3 0

Answer:

partly ionic and partly covalent

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Lead has a density of 11.3 g/cm3. what is the volume of a 15.1 g block of lead?
Crank
Hey there:

density = 11.3 g/cm³

mass = 15,1 g

Therefore: 

D = m / V

11.3 = 15.1 / V

V = 15.1 / 11.3

V = 1.336 cm³
8 0
3 years ago
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Answer:

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8 0
3 years ago
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A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 147g of nitrogen gas is produced. Cal
andreev551 [17]

Answer:

10.5 moles of Nitrogen gas is produced

Explanation:

Number of moles = mass / molar mass

molar mass of Nitrogen = 14g/mol

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moles= 147/14= 10.5moles of Nitrogen gas produced

4 0
4 years ago
The Lithium atom has only two energy levels. The third is empty. Therefore, we can refer to the second energy level of the lithi
Minchanka [31]

Answer:

H=1

Li=1

Na=1

Be=2

Mg=2

B=3

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C=4

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O=6

S=6

F=7

Cl=7

Ne=8

Ar=8

He=8

Explanation:

5 0
3 years ago
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