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puteri [66]
2 years ago
10

What is the name of the compound CaCo3​

Chemistry
1 answer:
ddd [48]2 years ago
4 0
The compound is calcium carbonate
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An atom of calcium contains 20 protons how many electrons does it have
harina [27]
20.

Atomic number is equivalent to its protons and electrons. :)
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The electrons in the outer shell of an atom are called:<br> outer<br> ionized<br> polar<br> valence
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Valence.

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3 years ago
If i have an 86 and i don’t do a 50 point assignment, what will my grade be in the class?
nexus9112 [7]
Well you are at a 86% so t<span>his is considered a "B" grade on an average grade scale. If you take 50 points we would need to know the Total point you could have got in that class to be able to see how much a percent was the assignment work and then take that percentage of the assignment and subtract it from the 86% to see where on the scale you would fall in after the assignment points were taken off.   Hope this helps :)
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7 0
2 years ago
In this equation, what should be the coefficients of the reactants and products? I2 + O2 → I4O9
denpristay [2]
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3 0
3 years ago
What is the [H+] concentration of blood, given the ph is 2.5?
belka [17]

Answer:

0.00316

Explanation:

You have to use the following equation:

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The concentration of H is 0.00316.

8 0
2 years ago
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