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3 years ago

A state of matter with a changing shape and changing volume

Chemistry

1 answer:

lora16 [44]3 years ago

5 0

Answer:

Gas is the state of mater which changing its shape and volume according to the volume and shape of container.

Explanation:

Gas is the state of mater which changing its shape and volume according to the volume and shape of container.

Properties of gas:

Molecule of gases randomly move everywhere and occupy all available space.

Gases don't have definite volume and shape and take the shape and volume of container in which it present.

Their densities are very low as compared to the liquid and solids.

Gas molecules are at long distance from each other therefore by applying pressure gases can be compressed.

The very weak inter molecular forces are present between gas molecules.

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Steven had a sample of ethanol and wanted to see if it would boil at the temperature found in his textbook. His experiment yield

Natasha_Volkova [10]

Answer:

17.04%

Explanation:

Actual Value = 173.1

Measured Value = 143.6

Percent error is obtained using the equation;

Percent error = (Measured - Actual) / Actual ]* 100

Percent error = [ (143.6 - 173.1) / 173.1 ] * 100

The absolute value of (Measured - Actual) is taken,

Percent Error = [29.5 / 173.1 ] * 100

Percent Error = 0.1704 * 100 = 17.04%

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3 years ago

The balanced equation for the reaction between iron sulfied and water is best represented by?

nika2105 [10]

FeS + H₂O → FeO + H₂S

Explanation:

Iron Sulfide = FeS

Water = H₂O

FeS + H₂O → FeO + H₂S

To balance this equation, we can use a mathematical method. This involves solving simple algebraic equations

aFeS + bH₂O → cFeO + dH₂S

a,b,c and d are the coefficients needed to balance up the equation:

Conserving Fe: a = c

S: a = d

H: 2b = 2d

O: b = c

let a = 1, c= 1, b = 1 d = 1

The balanced equation is: FeS + H₂O → FeO + H₂S

learn more:

Balanced equation brainly.com/question/2612756

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3 years ago

Write a balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic aqueous solution. Be su

Vesna [10]

Answer:

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Explanation:

Balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic solution should be written in the following step-by-step manner:

Half-reaction: $O_{2}(g)\rightarrow H_{2}O_{2}(aq.)$

Balance H and O in basic medium: $O_{2}(g)+2H_{2}O(l)\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balance charge: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

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4 years ago

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Ber [7]

The answer is letter A.

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7nadin3 [17]

This is called a convection current

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