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Lerok [7]
3 years ago
12

Which model of the atom is thought to be true?

Chemistry
1 answer:
Nataly_w [17]3 years ago
7 0

Its A. Explanation:I just know

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Use the periodic table to identify the molar mass of each element below. Answer without doing any calculations.
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4 years ago
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Complete and balance the following neutralization reaction Ca(OH)2 + H2SO4
Debora [2.8K]

Answer: Ca(OH)2 (aq) + H2SO4 (aq) ---------->  CaSO4(aq) + 2H2O(l)

Explanation:

Since this is a neutralization reaction, the end product would be salt and water. In this equation Calcium will displace hydrogen from the acid because it is more reactive, resulting in the formation of CaSO4 (salt), while the displaced H2 molecule combines with OH molecules to form water.

The equation of the reaction is thus;

Ca(OH)2 (aq) + H2SO4 (aq) ---------->  CaSO4(aq) + H2O(l), in other to balance it, we add ''2'' to the water molecule in the right hand side of the equation.

Balance equation is  

Ca(OH)2 (aq) + H2SO4 (aq) ---------->  CaSO4(aq) + 2H2O(l)

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In the equation:<br><br> 23491Pa → 234 92U + X<br><br><br> The X represents a
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