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ZanzabumX [31]
2 years ago
6

___ Is a type of wave that can travel through empty space to transfer energy from place to place

Chemistry
1 answer:
Mandarinka [93]2 years ago
8 0
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During a lunar eclipse, the moon appears to be darkened because _______________ is casting a shadow on it.
stealth61 [152]

Answer:

the earth

Explanation:

because the moon is blocking the light of the sun

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2 years ago
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How many molecules are in 3 moles of NaCl?
PtichkaEL [24]

Answer:

Given : No. Of moles = 1.5

To calculate : no. Of molecules =N

We know that moles = N / 6.022 x 10²³

Therefore, 1.5 x 6.022 x 10²³ = N

Hence N = 9.0330x 10²³ molecules

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3 years ago
17 Which substance can not be broken down by a chemical change?(1) ammonia (3) propanal
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Zirconium cannot be broken down by a chemical change, because it is an element. The others are all molecules.
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3 years ago
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The carbon cycle is closely linked to which process?
ser-zykov [4K]

Answer:

Photosynthesis

Explanation:

Carbon cycle involves the exchange of components between the hydrosphere, biosphere and atmosphere. During carbon cycle, materials such as gases, minerals which are necessary for life are interchange. For example, animals pass out faeces on the soil which is rich in urea. Urea decomposes to provide nitrogen into the soil through bioactive bacterials. The nitrogen is used up by plants to grow. During photosynthesis, plants uses carbon dioxide and water to produce glucose and release oxygen for animals to use. It's like a purification system where one waste product from one organism is used by the other to survive.

Equation of photosynthesis

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.

4 0
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