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Vladimir [108]
2 years ago
8

Which of the following is an example of representative money?

Chemistry
1 answer:
NemiM [27]2 years ago
5 0
Gold certificates or sliver certificates
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each element is designated by its __________ which is usually from the first letters of the elements name
klemol [59]

Answer:

each element is designated by its <u>Chemical Symbol </u>which is usually from the first letters of the elements name

Explanation:

7 0
2 years ago
3. You are asked to prepare an aqueous solution. What would be a better choice for a solute potassium nitrate or
liubo4ka [24]

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i do not knowwww

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8 0
3 years ago
What is the number of the group that has the most reactive nonmetals (give number and letter- Ex 1A, 2A, etc.)?​
Kryger [21]

Answer:

Group 7A

Explanation:

The group 7A elements consists of the most reactive non-metals on the periodic table.

This group is known as the group of halogens. They consist of element fluorine, chlorine, bromine, iodine and astatine.

  • The elements in this group have the highest electronegativity values.
  • They have 7 valence electrons and requires just one electron to complete their octets.
  • This way, they are highly reactive in their search for that single electron.
3 0
3 years ago
Consider the potassium permanganate reaction again.
Rus_ich [418]
Hey there !

Mole ratio :

<span>2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2

2 moles KMnO4 ----------------- 8 moles H2O
3.45 moles KMnO4 ------------- (moles H2O )

Moles H2O = 3.45 * 8 / 2

Moles H2O = 27.6 / 2

 = 13.8 moles of H2O

</span>The option that was given is wrong , <span>You're right.</span>
6 0
3 years ago
Read 2 more answers
Two scientists did the same experiment but arrived at different results. The results would most likely be ?
schepotkina [342]

Answer:

They did not have accurate data and information.

5 0
3 years ago
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