3 years ago

Which two elements have the same number of energy levels with electrons in them?(1 point)

Chemistry

1 answer:

Vladimir79 [104]3 years ago

5 0

Its B) Boron and Oxygen

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gulaghasi [49]

Answer:

option C

Explanation:

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3 years ago

Write the ions that result from the dissociation of na2s

Sveta_85 [38]

2Na^+ and S^2-

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4 years ago

An experiment in a general chemistry laboratory calls for a 2.00 M solution of HCL. How many mL of 11.9 M HCL would be required

Annette [7]

<u>Answer:</u> The volume of concentrated solution required is 42 mL

<u>Explanation:</u>

To calculate the molarity of the diluted solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the concentrated solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted solution

We are given:

$M_1=11.9M\\V_1=?mL\\M_2=2.0M\\V_2=250mL$

Putting values in above equation, we get:

$11.9\times V_1=2.0\times 250\\\\V_1=42mL$

Hence, the volume of concentrated solution required is 42 mL

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3 years ago

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Ipatiy [6.2K]

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3 years ago

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What is the mass in grams of 17.46 mL m L of acetone?

Crazy boy [7]

Answer:

17,46gram

Explanation:

because 1l is egal to kg

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3 years ago

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