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mamaluj [8]
3 years ago
12

The rate law for a reaction is rate = k[A]2. What is the overall order of this reaction, and which two varaibles, when graphed,

will give a straight line for this reaction? A. first order, In[A]t versus t B. first order, 1/[A]t versus t C. second order, In[A]t versus t D. second order, 1/[A]t versus t
Chemistry
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

D. second order, 1/[A]t versus t

Explanation:

Since the power of the concentration is 2 in the rate law, it is a second order reaction. Also, for a second order reaction, the variables that would yield a straight line when graphed are 1/[A]t versus t

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Molar mass of NaCN = 49 g/mol

Therefore, the mass of NaCN is

16.7 g of  HCN x 49 g/mol of NaCN / 27 g/mol of HCN = 30.3 grams of NaCN

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3 years ago
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The number of electrons in the outermost principal energy level of a chlorine atom is
Hitman42 [59]

Answer:

seven electrons

Explanation:

Chlorine is present in group seventeen of periodic table. It is halogen element. All halogens have seven electrons in outer most valance shell.

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Abbreviated electronic configuration:

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Properties of chlorine:

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Missing question: Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of ammonium carbonate and cobalt(II) bromide are combined.<span>Balanced chemical reaction:
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or CO²⁻(aq) + Co²⁺(aq) → CoCO₃(s).
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