3 years ago

Plants uses radiant energy from the sun to turn _ and _

Chemistry

1 answer:

siniylev [52]3 years ago

6 0

Answer:

chemical energy in the form of glucose/sugar

Explanation:

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____________ limits or stops the growth of bacteria.

Kaylis [27]

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Vaccines

Explanation:

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3 years ago

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How many Zn atoms are there in 4.65 moles of Zn?

Nesterboy [21]

So your answer would pretty much be 2.80 x 10^24. The picture is just the explanation and how you would get that answer.

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3 years ago

When water changes state from a liquid to a solid is energy absorbed or lost?

Brrunno [24]

Answer:

Loses

Explanation:

liquid changes into solid, heat is released. The energy released upon freezing, known as the enthalpy of fusion, is a latent heat, and is exactly the same as the energy required to melt the same amount of the solid.

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3 years ago

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In a calorimetry experiment, a salt is dissolved in water within an insulating container. The temperature of the solution (surro

Stels [109]

Answer:

Explanation:

heat released by the solution

= 120 x 3.18 x ( 25 - 14 )

= 4197.6 J

= 4.1976 kJ

This is the heat gain by the salt

so enthalpy change = + 4.1976 kJ

because there is increase in enthalpy

It is endothermic process .

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3 years ago

Zn-64 = 48.63%

Ann [662]

Answer:

A = 65.46 u

Explanation:

Given that,

The composition of zinc is as follows :

Zn-64 = 48.63%

Zn-66 = 27.90%

Zn-67 = 4.10%

Zn-68 = 18.75%

Zn-70 = .62%

We need to find the average atomic mass of the given element. It can be solved as follows :

$A=\dfrac{48.63\times 64+27.90\times 66+4.1\times 67+18.75\times 68+0.62\times 70}{100}\\A=65.46\ u$

So, the average atomic mass of zinc is 65.46 u.

5 0

3 years ago

Plants uses radiant energy from the sun to turn ___ and ___

Plants uses radiant energy from the sun to turn _ and _