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harina [27]
2 years ago
11

Brainliest and a free hug :) thank you!!

Chemistry
1 answer:
Elanso [62]2 years ago
7 0

Answer:atoms involved in reaction. Mass remains same in reaction

Explanation: hug would be fine!

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What is the electron configuration of Zn2+
boyakko [2]
. 1s2 2s2 2p6 3s2 3p6 3d10 One point is earned for the correct configuration.
3 0
3 years ago
How many moles are in 12 liters of Cl2?
RoseWind [281]

Answer:

\boxed {\boxed {\sf 0.54 \ mol \ Cl_2}}

Explanation:

A mole is any quantity of a substance that contains 6.02 × 10²³ particles. At standard temperature and pressure, or STP, 1 mole of as is equal to 22.4 liters. This is true for any gas, regardless of the specific kind.

Although it is not specified, we can assume this gas is at STP. Let's set up a ratio using this information: 22.4 L/mol

\frac {22.4 \ L \ Cl_2}{1 \ mol \ Cl_2}

Multiply by the given number of liters: 12

12 \ L \ Cl_2 *\frac {22.4 \ L \ Cl_2}{1 \ mol \ Cl_2}

Flip the ratio so the liters of chlorine cancel.

12 \ L \ Cl_2 * \frac {1 \ mol \ Cl_2}{22.4 \ L \ Cl_2}

12  * \frac {1 \ mol \ Cl_2}{22.4 }

\frac {12}{22.4 }  \ mol \ Cl_2

0.53571428571 \ mol \ Cl_2

The original measurement of liters has 2 significant figures, so our answer must have the same.

For the number we found, that is the hundredth place.

  • 0.53<u>5</u>71428571

The 5 in the thousandth place tells us to round the 3 up to a 4.

0.54 \ mol \ Cl_2

12 liters of chlorine gas at STP is approximately <u>0.54 moles of chlorine gas.</u>

8 0
3 years ago
PLZ HELP!!! Will name brainliest! 40 points!!!
riadik2000 [5.3K]

Answer:

2

Explanation:

The compounds XCl₂ and  X₃N₂ shows that the valency of X is 2. If they are ionic compounds then X is a metal. The metals having valency=2 mostly reside in group-2.

4 0
3 years ago
No links plz!!<br>CaOCl2 parent acid and base???​
Vesnalui [34]

Answer:

this is not and reaction of acid and base.(CaOCL2)

Explanation:

Ca2, Cl, are base and O is a neutral.

so how can that be a acid and base reaction

4 0
2 years ago
Which combination of reactants would result in a neutralization reaction with sodium nitrate,
Debora [2.8K]

Answer:

(B) HNO3 + NaOH

Explanation:

Hello,

In this case, for the production of sodium nitrate a substance having the sodium as a cation should react with another substance having the nitrate anion. Moreover, neutralization reactions are carried out when bases react with acids, such is the case of nitric acid and sodium hydroxide:

NaOH+HNO_3\rightarrow NaNO_3+H_2O

Thus, the answer is (B) HNO3 + NaOH  as the other options involve salts rather than acids or bases as starting reactants.

Regards.

7 0
3 years ago
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