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maksim [4K]
3 years ago
10

The sum two numbers: 152.50 and 2.462 Reported to the correct number of significant figures is

Chemistry
1 answer:
Phantasy [73]3 years ago
4 0

Answer:

5 and 4

Explanation:

All numeral digits are important for sig figs and any zeros inbetween.  Any zeros after are seen as important in decimals but not before.

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Can someone help me
Sphinxa [80]

Answer: 0.24

Explanation:

M=\frac{moles}{L}\\ M=\frac{0.6 moles}{2.5L} \\M=0.24

4 0
3 years ago
An atom of potassium loses one electron. what does it become a negative potassium, positive potassium
STALIN [3.7K]
Yes, K+ is<span> a </span>potassium<span> ion, and Mg</span>2+ is<span> a magnesium ion. But However, when non-metallic elements gain the </span>electrons<span> to form anions, Yes the end of their name </span>is<span> changed to “-ide.” and yes the example, a fluorine </span>atom<span> gains </span>one electron<span> to </span>become<span> a yes fluoride ion (F</span>-<span>) sooo yeessyes</span>
5 0
3 years ago
The ph of a 0.55 m aqueous solution of hypobromous acid, hbro, at 25.0°c is 4.48. what is the value of ka for hbro?
elena-14-01-66 [18.8K]

The solution would be like this for this specific problem:

Given:

 

pH of a 0.55 M hypobromous acid (HBrO) at 25.0 °C =  4.48

 

[H+] = 10^-4.48 = 3.31 x 10^-5 M = [BrO-] <span>

Ka = (3.31 x 10^-5)^2 / 0.55 = 2 x 10^-9</span>

 

To add, Hypobromous Acid does not require acid adjustment, which is necessary for chlorine-based product and is stable and effective in pH ranges of 5-9.<span>

</span>Hypobromous Acid combines with organic compounds to form a bromamine. Chlorine also combines with the same organic compounds to form a chloramine. <span>It is also one of the least expensive intervention antimicrobial compounds available.</span>

8 0
3 years ago
Read 2 more answers
What makes organic compounds reactive?
konstantin123 [22]

Answer:

The functional groups

Explanation:

  • An organic compound is a compound that contain carbon and another element such as hydrogen, oxygen, nitrogen, etc.
  • Functional groups are the portions of an organic compound that is capable of characteristic reactions.
  • Functional groups determine the chemical and physical properties of many organic compounds.
3 0
3 years ago
Krupton (Kr) is a <br><br>A. Gas<br>B. Metal<br>C. Non of these<br>D. Metalloid​
Katarina [22]
B is gas


The chemical element krypton is classed as a noble gas and a nonmetal.







Love you
3 0
3 years ago
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