1 In the beginning God created the heavens and the earth.
2 Now the earth was formless and empty.darkness was over the surface of deep and the spirt of the God was hovering over the waters.
3 and God said let there be light, and there was light.
4 God saw the light was good and seperated the light from darkness.
5 God called the light day and the darkness night and there was evinigining and there was morning of the first day.
6 And God said let there be an expanse of water between the waters to separate water from water.
So god made the expanse and separated the water under the expanse from the water above it and it was so.
7 God called the expanse sky .and there was evening and there was morning the second day.
There that how the atmosphere was made.and that what geologist know too
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The correct answer is b. an element
The explanation:
when the ELEMENT is define as substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen
Ex: diamond will be broken into carbon as well.
and SUBSTANCE: Material composed of only one kind of matter throughout (same atoms or same molecules).
Answer:
The answer to your question is <u>111 g of CaCl₂</u>
Explanation:
Reaction
2HCl + CaCO₃ ⇒ CaCl₂ + CO₂ + H₂O
Process
1.- Calculate the molecular mass of Calcium carbonate and calcium chloride
CaCO₃ = (1 x 40) + (1 x 12) + ((16 x 3) = 100 g
CaCl₂ = (1 x 40) + (35.5 x 2) = 111 g
2.- Calculate the amount of calcium chloride produced using proportions.
The proportion CaCO₃ to CaCl₂ is 1 : 1.
100 g of CaCO₃ ------------- 111 g of CaCl₂
Then 111g of CaCl₂ will be produced.
Answer : The weight of water is 9 g
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number 
of particles.
To calculate the number of moles, we use the equation:
1 mole of water 
weighs = 18 g
0.5 moles of water weighs = 
Thus the weight of water is 9 g
