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atroni [7]
3 years ago
8

What evidence led scientists to develop the theory of plate tectonics

Chemistry
1 answer:
hoa [83]3 years ago
5 0
Earth quake and volcanoes. 
I hope i have answerd your question.
Your welcome.
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The moons appearance from the earth changes throughout its orbital path because the amount of .... varies ?
Mkey [24]
The amount of reflected sunlight varies. There really isn't any such thing as moonlight. The light we perceive to be produced by the moon is really just sunlight! As the moon moves around the planet, we can see differing amounts of reflected light that we categorize as phases.

<span>I hope this helps! Let me know if you have anymore questions, and have a great day! :)</span>
3 0
4 years ago
Suppose the mole number of Ca2+ ions in a 50 mL water sample is quantified as 1.5 × 10−5 mol. What is the concentration of Ca2+
Anna11 [10]
\frac{1.5x 10^{-5} mol  Ca^{2+}}{50ml}  ( \frac{1 mol CaC O_{3} }{1 mol  Ca^{2+} } )( \frac{100,000 ppm}{1 molCaC O_{3}/L } ) \\ =0.0300234
5 0
3 years ago
Read 2 more answers
How many quarters fit in a 1.75 liter bottle?
WARRIOR [948]
1.85 quarts can fit into a 1.75 liter bottle
8 0
3 years ago
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B. What useful functions do oxidation numbers
disa [49]

Explanation:

b. What useful functions do oxidation numbers  serve?

It is used to show oxidation and reduction (loss and gain of electrons)

b. How many molecules are in 1 mole of  molecules?

1 mole = 6.022 * 10^23 molecules

c. What is the name given to the number of  molecules in 1 mole?

Avogadro's Number of molecules

21. a. What is the molar mass of an element?

This is the mass of an element divided by the number of moles.

Molar mass = Mass / Number of moles

b. Write the molar mass rounded to two  decimal places of carbon, neon, iron and  uranium.

amu = Atomic Mass Unit

Carbon = 12.01 amu

Neon = 20.18 amu

Iron = 55.85 amu

Uranium = 238.03 amu

7 0
3 years ago
When a warm air mass and a cold air masses meet but they push at each other and neither one can move (at a stand off) it’s calle
Tom [10]
This is called a Cold Front.
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4 years ago
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