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Gelneren [198K]
3 years ago
8

The table describes how some substances were formed.

Chemistry
1 answer:
gogolik [260]3 years ago
6 0

Answer:

Formed by adding 5 g of sugar to 1 L of water

Explanation:

The substance formed by adding 5 g of suagr to 1 L of water is a mixture.

<em>A mixture is defined as two or more substances that are physically mixed but do not react together. It thus means that the component substances of a mixture can be retrieved through appropriate means of separations.</em>

<u>A mixture of sugar and water can be separated by evaporation. The mixture is heated and the vapor from the boiling water can be condensed to retrieve the water while the residue will give the sugar that was initially dissolved in it. </u>

The products formed from other descriptions in the illustration cannot be separated ordinarily and thus, are not considered to be mixture. The components have been chemically combined together.

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Ice cubes are placed on a table in a warm room. What happens to the ice particles?
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B

Explanation:

I rember when I learned this in 3rd grade

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3 years ago
For a certain chemical reaction, the standard Gibbs free energy of reaction at 30.0 °C is 110. kJ. Calculate the equlilibriunm c
mestny [16]

Answer:

Explanation:

The equation that relates standard Gibbs free energy, ΔG, with equilibrium constant, K, is:

ΔG = -RT ln K

<em>Where R is gas constant, 8.314J/molK, and T is absolute temperatue (30.0°C + 273.15 = 303.15K).</em>

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Replacing (110kJ = 110000J):

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3 years ago
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Explanation:

mass of the reactant = mass of the product

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4 0
3 years ago
In a physical change, the makeup of matter is changed.<br> True or false?
Simora [160]

Answer:

false

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6 0
2 years ago
What is the mass, in pounds, of 389 mL of a gas that has a density of 1.29 g/L?
devlian [24]

Answer: Mass of gas is 0.001 pounds.

Explanation:

Density is defined as the mass contained per unit volume.

Density=\frac{mass}{Volume}

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Putting in the values we get:

1.29g/L=\frac{mass}{0.389L}

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Thus the mass of gas is 0.001 pounds.

7 0
3 years ago
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