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AlexFokin [52]
3 years ago
14

Why aren't the atomic masses of most elements whole numbers

Chemistry
1 answer:
sweet-ann [11.9K]3 years ago
5 0
The atomic mass<span> is </span>not<span> given as a </span>whole number<span> because it is a heavy average taken of all of an </span>atom's<span> isotopes found in nature relative to the </span>mass<span> of carbon-12.</span>
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A beaker contains 249 mL of a 6.54 M HCl(aq) solution. Determine the new concentration of the solution after it is diluted by ad
drek231 [11]

Answer:

The new molarity is 0.614 M

Explanation:

Formula for dilutions is:

M concentrated . Volume of conc = Volume of dil . M diluted

6.54 M . 249 mL = 416 mL . M diluted

Notice that volume of diluted is = Initial volume + What we added of water

(249mL + 167 mL)

(6.54 M . 249 mL) / 416mL = M diluted → 0.614 M

5 0
3 years ago
What is the balanced equation for Sodium reacts with water to form sodium hydroxide and hydrogen gas?
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Bubbling ammonia into a solution of bromic acid will produce what salt?
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<h3>✽ - - - - - - - - - - - - - - -  ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

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3 years ago
Complete the blank with the correct answer choice. 20 kilograms = _______ grams A. 20 B. 200 C. 2,000 D. 20,000
AVprozaik [17]

Answer:

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3 years ago
Why does the nucleus of an atom have a positive charge but overall have a neutral<br> charge?
Mashutka [201]

Answer:

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Explanation:

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