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geniusboy [140]
3 years ago
10

How quick does it take for hearts to beat

Chemistry
1 answer:
serg [7]3 years ago
6 0

very quick like 4 beats per seconed

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this is the term used to describe magma that has left earth's interior usually through the force of a volcano
butalik [34]

Answer:

Lava

Explanation:

Once magma leaves the inside of the earth, it just gets a new name, which is lava.

5 0
3 years ago
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When zn(oh)2(s) was added to 1.00 l of a basic solution, 1.09×10−2 mol of the solid dissolved. what is the concentration of oh−
uysha [10]
The concentration of the basic solution is determined by:

N = (number of moles / volume of solution) 

number of moles = 1.09 x 10^-2 mol
volume of solution = 1 liter
N of basic solution = 1.09 x 10^-2 mol / 1 liter
N = 1.09 x 10^-2 mol/L

The initial concentration of Zn (OH)2 is 0; the basic solution is 1.09x10^-2 M, then the concentration of OH in the final solution is 1.09x10^-2 M



7 0
3 years ago
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Help me please!!! HELP ME
Neporo4naja [7]

Answer:

Its a

Explanation:

3 0
3 years ago
Density of iron is 7.8 g/cc. How much would 10 cc of iron weigh?
Elena-2011 [213]

Answer:

<h3>The answer is 78 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume = 10 cc

density = 7.8 g/cc

So we have

mass = 7.8 × 10

We have the final answer as

<h3>78 g</h3>

Hope this helps you

4 0
3 years ago
Ill give brainlest to the one who answers right.
liraira [26]
The answer would be h2o
8 0
3 years ago
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