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3 years ago

During photosynthesis ____ energy is transferred into chemical energy.

Chemistry

1 answer:

Crazy boy [7]3 years ago

5 0

Photosynthesis converts solar energy into chemical energy title

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Please help me I am timed

marin [14]

Most likely b,c or d sorry but idk I’m just helping other people answer by eliminating one answer

6 0

3 years ago

Name one solid that can be used in place of candle wax while will give the same result

Nataliya [291]

Answer:

Paraffin Wax

Explanation:

Paraffin wax is one of the most widely used waxes for candle making. A cheaper alternative, it is a derivable from petroleum, coal or oil. This wax is white and odorless and will keep a consistent appearance throughout your candle's life.

5 0

3 years ago

Convert 26.02 x 1023 molecules of C2H8 to grams. Round your answer to the hundredths place.

aliina [53]

Answer:

x= 138.24 g

Explanation:

We use the avogradro's number

6.023 x 10^23 molecules -> 1 mol C2H8

26.02 x 10^23 molecules -> x

x= (26.02 x 10^23 molecules * 1 mol C2H8 )/6.023 x 10^23 molecules

x= 4.32 mol C2H8

1 mol C2H8 -> 32 g

4.32 mol C2H8 -> x

x= (4.32 mol C2H8 * 32 g)/ 1 mol C2H8

x= 138.24 g

4 0

4 years ago

Which law is used to determined the relationship between the volume and the number of moles

alukav5142 [94]

Answer:

Avogadro's Law

Explanation:

Avogadro's number (6.23 x 10^23)

Avogadro's law states that the volume and number of moles are proportional if pressure and temp remain constant.

8 0

4 years ago

Read 2 more answers

Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other h

defon

Answer: m = 0.42; Tb = 79°

Explanation: The relationship between boiling point of the solvent above a solution is directly proportional to the molal concentration of the solute, i.e.:

ΔT = $K_{b}.m$

where

ΔT is the change in boiling point of the solvent;

$K_{b}$ is the molal boiling point elevation constant;

m is the molal concentration of the solute in the solution;

For there two solutions:

1) Ethanol:

ΔT = $K_{b}.m$

Tb - $T_{normal} = K_{b}.m$

Tb - 78.4 = 1.22.m (1)

2) Carbon Tetrachloride:

Tb - $T_{normal} = K_{b}.m$

Tb - 76.8 = 5.03.m (2)

Solving the system of equations:

Tb - 78.4 = 1.22.m

Tb = 1.22.m + 78.4 (3)

Substituing (3) in (2)

1.22.m + 78.4 - 76.8 = 5.03m

3.81m = 1.6

m = 0.42

With m, find Tb:

T - 76.8 = 5.03.0.42

T = 2.11 + 76.8

T = 79°

<u>Molal</u> concentration is <u>0.42</u> and boiling point is 79°

4 0

3 years ago