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sasho [114]
3 years ago
13

What process takes place when hydrogen-3 and hydrogen-2 combine to form

Chemistry
1 answer:
vazorg [7]3 years ago
4 0

Answer:

A alpha decay

hope this helps you :D

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Suppose that 7.25 x 10^22 atoms of a hypothetical element have a mass of 3.88 g. What would be the molar mass (g/mol) of this el
S_A_V [24]

Answer:

32.23 to 4 significant figures.

Explanation:

The molar mass of the element is the mass of 6.022 * 10^23 atoms (Avogadro's number).

So by proportion it is 6.022 * 10^23 * 3.88 / 7.25 * 10^22

= 32.23 to 4 significant figures.

4 0
3 years ago
The medium for ocean waves
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This is a tough one but the answer is water

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2 years ago
How much energy will it take to raise the temperature of 75.0 g of water from 20.0°C to 55.0°C?
Hatshy [7]

Answer:

We can use heat = mcΔT to determine the amount of heat, but first we need to determine ΔT. Because the final temperature of the water is 55°C and the initial temperature is 20.0°C, ΔT is as follows:

ΔT = Tfinal − Tinitial = 55.0°C − 20.0°C = 35.0°C

given the specific heat of water as 1 cal/g·°C. Substitute the known values into heat = mcΔT and solve for amount of heat:

=  heat=(75.0 g)(1 cal/ g· °C )(35.0°C) =

= 75x1x35=2625 cal

6 0
3 years ago
a rock has a density of 17 g/cm3. If it is cut into 3 equal size pieces, what will be the density of each piece?
erma4kov [3.2K]
All pieces will be 17 g/cm^3 because the density is not affected by cutting (assuming the rock is uniform).
6 0
2 years ago
As the period number increases on the periodic table (moving from the top of the table to the bottom), A. the atomic number incr
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C) the number of the pricipal energy level containing the outer electrons increases

3 0
3 years ago
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