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In-s [12.5K]
3 years ago
5

What is the new pressure of gas?

Chemistry
2 answers:
vlabodo [156]3 years ago
6 0
PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS
Hunter-Best [27]3 years ago
4 0
The pressure of a gas is the force that the gas exerts on the walls of its container. When you blow air into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. Pressure is a property which determines the direction in which mass flows.
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Two major discoveries of the gold foil experiment
tiny-mole [99]
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5 0
3 years ago
What is the percentage by mass of sulphur in Al2(SO4)3[A12SO4 =<br>342g/mol, S = 32]​
valentinak56 [21]

Answer: The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

Explanation:

Mass percent of an element is the ratio of mass of that element by the total mass expressed in terms of percentage.

{\text {Mass percentage}}=\frac{\text {mass of sulphur}}{\text {Total mass}}\times 100\%

Given: mass of sulphur = 32 g/mol

mass of Al_2(SO_4)_3 = 342 g/mol

Putting in the values we get:

{\text {Mass percentage}}=\frac{32g/mol}{342g/mol}\times 100\%=9.36\%

The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

4 0
3 years ago
Which describes the heliocentric model of the solar system? (1 point)
maw [93]

Answer:

D

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6 0
3 years ago
Thich of the following is a chemical property2
Dimas [21]

Answer:

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Explanation:

The change of liquid into solid is the freezing point. The melting point is more than the freezing point in certain cases of mixtures for certain organic compounds like fats. As soon as the mixture freezes it becomes solid and which results in change in the composition from the liquid and solid in this way the it drastically reduces the freezing point. The melting point gets higher due to the pressure. This happens due to the release of heat of which results in the rise of temperature to the freezing point .Also the reaction of elements with oxygen which leads to formation of new substance is also an chemical property

4 0
3 years ago
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rodikova [14]
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4 0
3 years ago
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