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klemol [59]
3 years ago
9

Does anybody know the answer to these two questions ?

Chemistry
1 answer:
Serjik [45]3 years ago
4 0
the first is hydroxide. I believe d is the second one but I'm not 100% positive so you may want to get a second opinion
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How many electrons does calcian have to gain or lose to have 8 valence electrons
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Answer:

two electrons

Explanation:

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2 years ago
How many grams of aluminum chloride must decompose to produce 78.3 milliliters of aluminum metal, if the density of aluminum is
Vilka [71]
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4 years ago
The rate constant for the decomposition reaction of H2O2 is 3.66 × 10−3 s−1 at a particular temperature. What is the concentrati
Pepsi [2]

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Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

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t = age of sample = 15.0 minutes

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15.0\times 60s=\frac{2.303}{3.66\times 10^{-3}}\log\frac{10.0}{(a-x)}

\log\frac{100}{(a-x)}=1.43

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(a-x)=3.72M

The concentration of H_2O_2 in a solution after 15.0 minutes have passed is 3.72 M

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What would be the result on the Insect population if the Bats and Mice were removed?
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