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vovangra [49]
2 years ago
10

URGENT!!! How many molecules of water are produced when a molecule of C7H16 combusts

Chemistry
1 answer:
Arlecino [84]2 years ago
3 0
I wish i knew im sorry
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All moons in our solar system are similar in appearance
Murrr4er [49]

Answer:

yes

Explanation:

because they are all the same revolving round the sun the colors only differ

7 0
3 years ago
A scientist has a container with a substance inside. At first, the molecules in the substance move away from each other. Later,
Vera_Pavlovna [14]

Answer:

Base on the properties the substances possess the substance change phase from gas to liquid.

Explanation:

Generally, matter can exist in three phase namely liquid , solid and gas. The scientist has a container with a substance inside.

At first the substance moves away from each other . This means the substance was first in the gas phase . Gas molecules, because of the energy they possess , it can move rapidly and randomly and most at times move away from each other . The gas molecules tends to fill the whole volume of the container and the shape of gases are indefinite.

Later the molecules move around each other. This is a property of a liquid . A substance in liquid phase have the ability to move freely but they stay together because of the force of attraction holding them together . The substance only have the ability to move around each other because the forces holding them together won't allow them to move apart.

Base on the properties the substances possess the substance change phase from gas to liquid.

5 0
3 years ago
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Which technique uses a special paper that separates a mixture into its different components with some components traveling a sho
iragen [17]
D. Liquid chromatography
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3 years ago
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A concentration cell consists of two zn/zn2+ electrodes. the electrolyte in compartment a is 0.10 m zn(no3)2 and in compartment
Dmitrij [34]

Answer:

E= -0.023V

Explanation:

find the solution below

7 0
4 years ago
A reaction between liquid reactants takes place at −10.0°C in a sealed, evacuated vessel with a measured volume of 45.0L. Measur
maks197457 [2]

Answer: 0.0624 atm

Explanation:-

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = ?

V= Volume of the gas = 45.0 L

T= Temperature of the gas = -10.0°C = 263 K    0^00C=273K

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas

Moles of gas=\frac{\text{ given mass}}{\text{ molar mass}}= \frac{19.0g}{146g/mole}=0.130moles

P=\frac{nRT}{V}=\frac{0.130\times 0.0821\times 263}{45.0}=0.0624atm

The pressure of sulfur hexafluoride gas in the reaction vessel after the reaction is 0.0624 atm

3 0
3 years ago
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