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sergij07 [2.7K]
3 years ago
12

Can you please find the answer key for this from internet?

Chemistry
1 answer:
aev [14]3 years ago
5 0
Found it http://my.ccsd.net/userdocs/documents/uGKpi9UAEwFpSIgE.pdf




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The best analogy for the function of myelin is
schepotkina [342]

Answer:

insulation packed around a hot water pipe

Explanation:

8 0
2 years ago
A compound contains only carbon, hydrogen, and oxygen. Combustion of 139.1 g of the compound yields 208.6 g of CO2 and 56.93 g o
Fofino [41]

Answer:

1. Mass of Carbon is 56.89g

2. Mass of Hydrogen is 6.33g

3. Mass of Oxygen is 75.88

Explanation:

The following were obtained from the question.

Mass of the compound = 139.1g

Mass of CO2 produced = 208.6g

Mass of H2O produced = 56.93

1. Determination of mass of Carbon (C). This is illustrated below:

Molar Mass of CO2 = 12 + (2x16) = 44g/mol

Mass of C = 12/44 x 208.6

Mass of C = 56.89g

2. Determination of the mass of Hydrogen (H). This is illustrated below:

Molar Mass of H2O = (2x1) + 16 = 18g/mol

Mass of H = 2/18 x 56.93

Mass of H = 6.33g

3. Determination of the mass of oxygen (O).

This is illustrated below:

Mass of the compound = 139.1g

Mass of C = 56.89g

Mass of H = 6.33g

Mass of O = Mass of compound - (mass of C + Mass of H)

Mass of O = 139.1 - (56.89 + 6.33)

Mass of O = 139.1 - 63.22

Mass of O = 75.88

3 0
3 years ago
When a 11.9 gram sample of copper metal is dropped into a glass of cold water, the temperature of the copper drops from 55°C to
Ugo [173]

Answer:

I need this one asap

Explanation:

Please

8 0
3 years ago
Oxidation number of phosphorus in calcium phosphorus oxides whole 2
Ket [755]
Answer; +3

Example Ca3(PO4)2
6 0
3 years ago
The equation below represents the formation of the formula unit CaF2. Label the equation with the name of each particle.
aev [14]

Answer:

HF hydrofluoric acid

Ca(OH)2 calcium hydroxide

CaF2 calcium fluoride

Explanation:

Hello!

In a neutralization reaction an acid reacts with a base forming a salt plus water.

2 HF + Ca(OH)2 --> CaF2 + 2 H2O

Successes with your homework!

3 0
3 years ago
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