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Romashka-Z-Leto [24]
3 years ago
10

A marble is sitting motionless on a table. How can you make it move?

Chemistry
2 answers:
Salsk061 [2.6K]3 years ago
8 0
You can pick it up and move it
valentinak56 [21]3 years ago
4 0
You can apply force. If you apply force on the marble, it will move. This corresponds to Newton's laws. Force will change the motionless marble into a marble in motion.

I hope this helps!
~kaikers
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3 years ago
Caclulate the pH for a solution with an [H+] = 9.75 x10-4
vovangra [49]

Answer:

pH=3.01

Explanation:

pH=-log[H+]

=-log(9.74x10e-4)

=3.01

3 0
3 years ago
A student makes a list of all the soil layers in a temperate region Which layer would be located farthest from the surface of th
Novay_Z [31]

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Consider the following system at equilibrium at 723 K: 2 NH3 (g) 26.6 kcal N2 (g) 3 H2 (g) Indicate whether each individual chan
ZanzabumX [31]

Answer:

- To increase the temperature as it is a reactant in terms of its endothermicity.

- To remove it will enable more space for the reactant to favor its production.

- To add more reactant in order to increase its equilibrium concentration.

Explanation:

Hello,

The undergoing chemical reaction is:

2NH_3(g)\rightleftharpoons 3H_2(g)+N_2(g)

Thus, in order to intensify the amount of nitrogen as the chemical reaction is endothermic, considering the Le Chatelier's principle we state:

- To increase the temperature as it is a reactant in terms of its endothermicity.

- To remove it will enable more space for the reactant to favor its production.

- To add more reactant in order to increase its equilibrium concentration.

Best regards.

4 0
3 years ago
How many grams of hydrogen are needed to react with 1.40 g of nitrogen to produce ammonia?
vazorg [7]

Answer:

Write a balanced chemical reaction:

N2 + 3H2 ==> 2NH3

Looking at the mole ratios in this balanced equation you can see it takes 3 moles H2 to make 2 moles NH3.  So, next calculate the moles of NH3 represented by 1.80 g and then convert to moles of H2 needed:

moles of NH3 = 1.80 g x 1 mole/17 g = 0.106 moles NH3

Moles H2 needed = 0.106 moles NH3 x 3 moles H2/2 moles NH3 = 0.159 moles H2 needed

Grams H2 needed = 0.159 moles x 2 g/mole = 0.318 grams H2 needed

Explanation:

8 0
3 years ago
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