2 years ago

I need to make sure of my answer

Chemistry

1 answer:

choli [55]2 years ago

3 0

Answer:

A) W and X

Explanation:

They are both non metals

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An atom with an atomic number of 18 will have how many electrons in its innermost orbit

Paraphin [41]

Answer:

2 electrons

Explanation:

The K shell is the innermost orbit and it contains 2 electrons

6 0

3 years ago

Consider a solution that is 0.05 M HCl. Your goal is to neutralize 1 L of this solution (i.e. bring the pH to 7). You also have

Ilia_Sergeevich [38]

Answer:

The volume of NaOH required is - 0.01 L

Explanation:

At equivalence point ,

Moles of $HCl$ = Moles of NaOH

Considering :-

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

Given that:

$Molarity_{NaOH}=5\ M$

$Volume_{NaOH}=?\ L$

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$Molarity_{HCl}=0.05\ M$

So,

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

$0.05\times 1=5\times Volume_{NaOH}$

$Volume_{NaOH}=\frac{0.05\times 1}{5}=0.01\ L$

<u>The volume of NaOH required is - 0.01 L</u>

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3 years ago

How many atoms are in ErAg

Semmy [17]

6.022 * 10^23 atoms

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3 years ago

PLEASE ANSWER ASAP NEED ANSWER!!!!!!!!!!!!!! 75 POINTS

kakasveta [241]

Answer:

The answer to your question is A.

Pure substances can not be broken down into others, so they cannot be molecules

Explanation:

5 0

2 years ago

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A student prepares 150.0 mL of 1.40 M HCl using 35.0 mL of a stock solution. What is the concentration of the stock solution? Us

drek231 [11]

Answer:6.0M

Explanation:see attached photo

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3 years ago