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adoni [48]
3 years ago
11

Draw the Lewis dot structure for Ca(OH)2.

Chemistry
1 answer:
frutty [35]3 years ago
4 0
Calcium has only two valence electrons in its shell. In order to agree with the octet rule it bonds with oxygen which has 6 valence electrons and with hydrogen which has 1 valence electron. Hope this answers the question. Have a nice day.
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What was the ERA?
BabaBlast [244]

The answer is: C. A failed constitutional amendment.

The Equal Rights Amendment (ERA) is a proposed amendment to the United States Constitution.

This amedment is designed to guarantee equal legal rights for all American citizens regardless of sex.

Hawaii was the first state to ratify ERA, followed by approximately 30 other states.

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7 0
4 years ago
Read 2 more answers
What happens if net neutrality goes away
aleksandrvk [35]
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5 0
4 years ago
During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. Theoretically, the expected amount shoul
gregori [183]

Answer:

Actual yield = 86.5g

Explanation:

Percent yield = 82.38%

Theoretical yield = 105g

Actual yield = x

Equation of reaction,

CaCO₃ + HCl → CaCl₂ + CO₂ + H₂O

Percentage yield = (actual yield / theoretical yield) * 100

82.38% = actual yield / theoretical yield

82.38 / 100 = x / 105

Cross multiply and make x the subject of formula

X = (105 * 82.38) / 100

X = 86.499g

X = 86.5g

Actual yield of CaCl₂ is 86.5g

7 0
3 years ago
How to calculate the gravimetric factor
lianna [129]
The only thing you need  to know in order to calculate <span>the gravimetric factor is the formula :
</span>Grav. Factor = m x FW (substance sought) /n x FW (Substance Weight)
I am pretty sure that you will find it helpful! Regards.
3 0
3 years ago
Ammonia and gaseous hydrogen chloride combine to form ammonium chloride. NH3+HCL-&gt;NH4CL
Hatshy [7]
The balanced chemical equation would be as follows:

<span>NH3+HCL->NH4CL

For this, we assume these gases are ideal gases so we can use the equation PV=nRT. We first calculate the number of moles of each reactants. We do as follows:

</span>PV=nRT
1.02 (4.21) = n (0.08206)(27+273.15)
n = 0.17 mol NH3 -------><span>consumed completely and therefore the limiting reactant</span>

PV=nRT
0.998 (5.35 L) = n (0.08206)(26+273.15) 
n = 0.22 mol HCl

<span>what mass of NH4Cl(s) will be produced?
0.17 mol NH3 (1 mol NH4Cl / 1 mol NH3 ) = 0.17 mol NH3

which gas is the limiting reactant?
 NH3 gas

which gas is present in excess?
HCl gas</span>
4 0
3 years ago
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