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Ber [7]
2 years ago
14

Is it possible to make crystals by hand?

Chemistry
1 answer:
xeze [42]2 years ago
8 0

Answer: Crystals are formed by the earth and the earth itself otherwise then its a fake crystal

Explanation:

Every crystal that exists was formed when earth was formed. Take diamonds for example, All diamonds were crushed for millions of years by the earth and that's why they are so valuable. All diamonds are just coal.

So your answer is no but fake crystals yes

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Stoichiometry is based on the _______________________________
SCORPION-xisa [38]

Answer:

Explanation:

Stoichiometry is based on the <u>conservation of mass</u>.

4 0
3 years ago
How many block shells are the d block and the f block​
HACTEHA [7]

Answer:

1s, 3p, 5d, 7f

Explanation:

4 0
3 years ago
A sleeping 68 kg man has a metabolic power of 65 w . you may want to review ( pages 323 - 327) . part a how many calories does h
Kazeer [188]

<u>Given:</u>

Mass = 68 kg

Power = 65 W

<u>To determine:</u>

Calories burned during an 8.0 hr sleep

<u>Explanation:</u>

Energy is expressed as:

Energy = Power * Time

Now, the unit of power = Watt (W)

1 W = 1 J/s i.e. 65 W = 65 J/s

Time = 8 hrs = 8 * 3600 s = 28800 s

Energy = 65 J/s * 28800 s = 1872000 J

Convert Joules (J) to calories (cal)

1 cal = 4.184 J

The calculated energy = 187200 J * 1 cal/4.184 = 447418 cal

Ans: The man burns nearly 447.4 kcal during an 8 hr sleep




8 0
3 years ago
Help me with number 19 and 20 please
Doss [256]
19) it's not balanced because when adding h2 and o2 u get h2o2 not h2o
20) I'm not sure
7 0
3 years ago
How can water and gravity work together to erode soil,sediment,and rock
Sunny_sXe [5.5K]
Ever seen a waterfall ? what do you think happens when all that water slams into the ground below ? same as when you turn a hosepipe on a flowerbed.

also, there's hydraulic cracking where water gets into cracks and freezes, splitting rocks apart.

fast moving water can carry sediment and roll rocks along the bottom. if the water slows down, it drops the rocks and heavier sediment. if it floods a field, say, then drains away, the grass will also filter smaller particles out, or the water might evaporate and leave fine sediment behind.
6 0
3 years ago
Read 2 more answers
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