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iragen [17]
4 years ago
6

What is magnesium oxide (A) a molecular compound with properties different from magnesium or oxygen (B) a molecular compound wit

h the same properties as magnesium or oxygen (C) a shiny metal similar to magnesium but with a higher melting point (D) a iconic compound with properties different from magnesium or oxygen
Chemistry
1 answer:
Kruka [31]4 years ago
5 0
Try out answer C magnesium oxides melting point is almost 5 times higher than magnesium
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How does the concentration of reactants affect the rate of a reaction
Naddika [18.5K]

Answer:

B

Explanation:

If the concentration is increased, there are more particles to collide with each other, increasing the rate of the reaction.

5 0
4 years ago
Which one is more dangerous Ac or Dc how is it?
zheka24 [161]

Question

Which one is more dangerous Ac or Dc how is it?

Answer

AC

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AC has the voltage alternates, it enter and exit from your body without a closed loop.

6 0
4 years ago
Considering the chart shown, at what temperature does the substance boil? 200ºC 1,200ºC 2,200ºC 2,400ºC
kodGreya [7K]

Answer:

The answer is 2,200ºC

Explanation:
I took the assignment for Edge, I don't think I can send the image because it might pick up on that and get reported, sorry!

The only other rationale that I have is that it's boiling because the graph shows that it's at a constant temperature/rate at 2,200ºC for quite a while. Typically when something boils, it stays at that constant rate of boiling, unless you turn the temperature up or it's finally able to peak..?

8 0
3 years ago
Which of the following elements is present in all living things?
Vinvika [58]
C. carbon is the correct answer
7 0
4 years ago
The equilibrium 2NO(g)+Cl2(g)⇌2NOCl(g) is established at 500 K. An equilibrium mixture of the three gases has partial pressures
Galina-37 [17]

Answer:

Kp = 41.53

Kc = 1.01

Explanation:

To calculate the equilibrium constant in terms of pressure, what we simply do is to use the equilibrium pressure raised to the power of the number of moles. What we are saying in essence is this:

Kp = [NOCl]^2/[NO]^2[Cl]

Kp= [0.25]^2/[0.174][0.093]^2 = 41.53

Kp = Kc (RT)^Dn

Hence, Kc = Kp/[RT]^(delta n )^-1

n = sum of the number of moles of products minus the sum of the number of moles of reactants= 2-3 = -1 in this case

Kc = 41.53/(0.0821 * 500)^1

Kc = 1.01

7 0
3 years ago
Read 2 more answers
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