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ipn [44]
3 years ago
8

How many units are in 1.54 moles?

Chemistry
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

Every mole contains 6.022 x 10^23 atoms regardless of what type of moelcules it is (Gold, Silver). So the anwer is 1.54 times 6.022 x 10^2

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The mass number of an atom is equal to which of the following?
seropon [69]

the answer is c, the number of protons plus the number of neutrons in a nucleus

5 0
4 years ago
When a solution of NaI reacts with a solution of AgNO3, what is the net ionic equation?
Leni [432]

Answer:

Ag⁺(aq) + I⁻(aq) → AgI(s)

Explanation:

Net ionic equation is a way to write a chemical equation in which you are listing only the species that are participating in the reaction.

In the reaction:

AgNO₃(aq) + NaI(aq) → AgI(s) + NaNO₃(aq).

The ionic equation is:

Ag⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + I⁻(aq) → AgI(s) + Na⁺(aq) + NO₃⁻(aq).

Now, listing only the species that are participating in the reaction:

<h3>Ag⁺(aq) + I⁻(aq) → AgI(s)</h3>

3 0
4 years ago
How many electrons are in the highest occupied energy level of these atoms?
Romashka-Z-Leto [24]

Answer:

a.

Explanation:

because

beds Go to <URL> to see if the

4 0
3 years ago
If a sample has a mass of 1.25 x 102 g and a volume of 51 mL, what is its density?
Dafna11 [192]

Answer:

<h2>2.45 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

d =  \frac{m}{v}  \\

We have

d =  \frac{1.25 \times  {10}^{2} }{51}  \\  = 2.45098..

We have the final answer as

<h3>2.45 g/mL</h3>

Hope this helps you

3 0
3 years ago
Determine the number of moles of air present in 1.35 L at 750 torr and 17.0°C.
BARSIC [14]
Your answers are correct. I love the Universal formula.
8 0
3 years ago
Read 2 more answers
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