2 years ago

WILL GIVE BRAINLYST

1 answer:

3 0

Answer: 12.18 u

Explanation: The average atomic mass of an element is calculated by taking the weighted average of the atomic masses of its stable isotopes.

In other words, each stable isotope will contribute to the average mass of the element proportionally to its abundance.

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mylen [45]

Here’s the math for your answer, which is 3.3 L HCl

6 0

2 years ago

Artist 52 [7]

<u>Answer:</u> The molarity of calcium hydroxide in the solution is 0.1 M

<u>Explanation:</u>

To calculate the concentration of base, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $HBr$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is $Ca(OH)_2$

We are given:

$n_1=1\\M_1=0.120M\\V_1=27.5mL\\n_2=2\\M_2=?M\\V_2=16.5mL$

Putting values in above equation, we get:

$1\times 0.120\times 27.5=2\times M_2\times 16.5\\\\M_2=0.1M$

Hence, the molarity of $Ca(OH)_2$ in the solution is 0.1 M.

7 0

2 years ago

beks73 [17]

B. When electrons gain energy, they have the power to move up to a higher energy level in an atom.

3 0

3 years ago

sveta [45]

Answer: A

Explanation:

Extreme weather events follow normal climate patterns.

5 0

2 years ago

sweet [91]

The answer is B im sure

8 0

2 years ago