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Slav-nsk [51]
3 years ago
11

2. This graph shows the energy involved in a reaction involving two molecules. Describe what is happening or what the state of t

he reaction is at A, B, C, and D. Then tell if this is an exothermic or an endothermic reaction.
Chemistry
1 answer:
blagie [28]3 years ago
6 0
If you think of it endothermic is when there is energy needed for the reaction to occur and exothermic is when the reaction releases energy
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Compound element ratio of 1:2:6<br> Ba(NO3)2+Na2SO4
Karo-lina-s [1.5K]

1:2:6? Ba(NO3)2 +Na2SO4 -----> BaSO4 + 2NaNO3

Ba(NO3)2

BaSO4

NaNO 3

Na2SO4

5 0
3 years ago
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You're legally obligated to yield the right-of-way:
kenny6666 [7]
It is most likely B.
3 0
3 years ago
Please show work:<br> Question below
ozzi

Answer:

b) 2.0 mol

Explanation:

Given data:

Number of moles of Ca needed = ?

Number of moles of water present = 4.0 mol

Solution:

Chemical equation:

Ca + 2H₂O     →      Ca(OH)₂ + H₂

now we will compare the moles of Ca and H₂O .

                          H₂O        :        Ca                

                             2           :        1

                             4.0           :       1/2×4.0 = 2.0 mol

Thus, 2 moles of Ca are needed.      

         

3 0
2 years ago
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Talja [164]
2. Because a cumulonimbus cloud is a towering vertical cloud
8 0
3 years ago
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2NO (g) + O2 (g) →2NO2 (g) At equilibrium [NO] = 2.4 × 10 -3 M, [O2] = 1.4 × 10 -4 M, and [NO2] = 0.95 M.
azamat

Answer:

K=1.12x10^9

Explanation:

Hello there!

Unfortunately, the question is not given in the question; however, it is possible for us to compute the equilibrium constant as the problem is providing the concentrations at equilibrium. Thus, we first set up the equilibrium expression as products/reactants:

K=\frac{[NO_2]^2}{[NO]^2[O_2]}

Then, we plug in the concentrations at equilibrium to obtain the equilibrium constant as follows:

K=\frac{(0.95)^2}{(0.0024)^2(0.00014)}\\\\K=1.12x10^9

In addition, we can infer this is a reaction that predominantly tends to the product (NO2) as K>>>>1.

Best regards!

4 0
3 years ago
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