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Elden [556K]
3 years ago
14

How can you move a object without making contact?

Chemistry
1 answer:
nadya68 [22]3 years ago
6 0

Answer:

The Force

Explanation:

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2.41 x 1024 formula units of NaCl
IgorLugansk [536]
So the number of moles = 0.06 moles of 4X12-2 moles.
7 0
3 years ago
A process in which one or more substances change to make one or more new substances is called a
svetlana [45]
The answer to your question is: Chemical Reaction.
8 0
4 years ago
An experiment requires 0.52 M NH3(aq). The stockroom manager estimates that 15 L of the base is needed. What volume of 15 M NH3(
Bingel [31]

Answer: 0.52 L of 15 M NH_3(aq) will be used to prepare this amount of 0.52 M base.

Explanation:

But on diluting the number of moles remain same and thus we can use molarity equation.

C_1V_1(stock)=C_2V_2 (to be prepared)

where,

C_1 =concentration of stock solution = 15 M

V_1 = volume of stock solution = ?

C_2 = concentration of solution to be prepared = 0.52 M

V_2 = volume of solution to be prepared = 15 L

15\times V_1=0.52\times 15

V_1=0.52L

Thus 0.52 L of 15 M NH_3(aq) will be used to prepare this amount of 0.52 M base

8 0
3 years ago
Which is an overall second-order reaction?<br> R=k[A]2 [b]2<br> R=k[A][B]<br> R=k<br> R=k[B]
masha68 [24]
R=K[A]2 [b]2 HOPE THIS HELPS
4 0
3 years ago
Lemon juice has a pH of about 2.0, compared with a pH of about 1.0 for stomach acid. Therefore, the concentration of H+ in stoma
LuckyWell [14K]

Answer:

The concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.

Explanation:

The H⁺ concentration of a solution is exponentially related to its pH value:

\rm [H^{+}] = 10^{-pH}.

For lemon juice:

\rm [H^{+}] = 10^{-2.0} = 0.01\; M.

For stomach acid:

\rm [H^{+}] = 10^{-1.0} = 0.1\; M.

Thus, the concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.

5 0
3 years ago
Read 2 more answers
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