3 years ago

Which is the energy source used to fuel photosynthesis?

Chemistry

2 answers:

ryzh [129]3 years ago

8 0

I think the answer is sunlight

8090 [49]3 years ago

3 0

Answer:

sunlight

Explanation:

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385 J of heat are needed to heat a piece of aluminum from 22°C to 45°C. If the specific heat of Al is 0.90 J/g°C, what is the ma

VikaD [51]

Answer:

M of Al=33.09g or 0.0331kg

Explanation:

Heat Energy= specific heat*mass*change in temperature

H=M*C*T

make M subject of the formula

M=H/CT

M=685J/0.90J/g°C*(45°C-22°C)

M=685J/0.90J/g°C*23°C

M=685J/20.7J/g

M=33.09g or 0.0331kg

4 0

3 years ago

Gerald's science teacher mixed liquid X and liquid Y, both at room-temperature, in a large beaker. two beakers of clear solution

Pachacha [2.7K]

Answer:

the answer is C

Explanation:

7 0

3 years ago

Read 2 more answers

) How many moles are there in 2.00 x 10^19 molecules of calcium phosphate?

Tamiku [17]

Answer:

$\huge 3.322 \times {10}^{ - 5} \: \: moles \\$

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{2.00 \times {10}^{19} }{6.02 \times {10}^{23} } \\ \\ = 3.322 \times {10}^{ - 5} \: \: moles$

Hope this helps you

4 0

3 years ago

What do all viruses have in common? Choose more than one answer.

vitfil [10]

Answer:

1, 3, 4, and 5

Explanation:

the number would be the dot order!

7 0

3 years ago

Which of these happens when the warm water gets to the North and South Poles

Airida [17]

Answer:It creates a heat source on the cold water and the molecules act against each other and then it becomes steam.

Explanation:I had to take this on a test.

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3 years ago