2 years ago

What are two things in nature that solar energy powers?

1 answer:

5 0

Answer: light and heat

Explanation:Our sun is the source of all life on Earth, and solar energy is useful to us in many different ways. The sun creates two main types of energy - light and heat - that we can harness for many activities ranging from photosynthesis in plants to creating electricity with photovoltaic (PV) cells to heating water and food.

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if i poured green solution into another test tube and added some copper pieces to the solution will a displacment action occur

Angelina_Jolie [31]

Depends on what kind of ions are present in the green solution

Explanation:

Cr3+, a famous green ion can obviously be displayed by a Cu2+ ion

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2 years ago

What is the pH of water?

melamori03 [73]

Answer:

7.00

Explanation:

Pure Water is the only purely neutral substance on earth so it has a neutral pH of 7

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3 years ago

Why would a doctor most likely restrict a patient's contact with other people while the patient receives internal radiation?

Leni [432]

I think is the last one

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3 years ago

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Rewrite each equation below with the delta H value included with either the reactants or the products and identify the reaction

yanalaym [24]

A) 2H₂(g) + O₂(g) → 2H₂O(l) + 285.83 kJ
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B) 2Mg + O₂ → 2MgO + 1200kJ
Exothermic

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3 years ago

1. Explain why the cold water and hot water in Part 1 moved the way they did within the tub of

neonofarm [45]

Answer:

Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. <u>Cold water is more dense and will sink in room-temperature water.</u>

<u></u>

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2 years ago