Answer:
Explanation:
SO3 (g) + NO (g) U SO2 (g) + NO2 (g)
occurs under these conditions. Calculate the value of the equilibrium constant, Kc, for the above reaction.
SO3 (g) + NO (g) U SO2 (g) + NO2 (g)
Initial (M) 2.00 2.00 0 0
Change (M) −x −x +x +x
Equil (M) 2.00 − x 2.00 − x x x
2 2 c 3
2
c 2
[SO ][NO ]
[SO ][NO]
(2.00 )
=
= −
K
x K
x
Since the problem asks you to solve for Kc, it must indicate in the problem what the value of x is. The concentration of
NO at equilibrium is given to be 1.30 M. In the table above, we have the concentration of NO set equal to 2.00 − x.
2.00 − x = 1.30
x = 0.70
Substituting back into the equilibrium constant expression:
2c 2 2c 2
(2.00 )
(0.70)
(2.00 0.70)
= − = −
x KxK
Kc = 0.290
Answer: Since all sodium atoms have 11 protons, this one has 11 protons. This tells us that it also has 11 electrons. Since the mass number is 23, we know that the sum of protons and neutrons in the nucleus must equal 23.
So the answer is : Mass number = 23
Explanation:
In the gaseous state, the molecules are spread very widely apart from one another and are free to move about. If placed in a container, the molecules will occupy the volume of the container and take its shape as well.
The molecules in the liquid state are closer than in the gaseous state and less free to move about. They are in layers that slide over one another, allowing the substance to flow. If placed in a container, the liquid water will take its shape but not the volume.
The molecules in the solid state are fixed in position, only able to vibrate about their fixed points. The structure formed is rigid, it does not flow and its shape and volume are fixed.
Nonliving thing doesn’t have cell
Answer:
Explanation:
Similarities.
Both Ionic and covalents bond produce exothermic reactions.
They are both neutral.in Ionic bonds, the two opposite charge will terminate each other and in covalent, the neutral molecules tend to share electrons.
Difference
Ionic bonds have high polarity while covalent have low.
Ionic bonds have no definite shape, covalent have.
Ionic have high melting points, covalent have low.
Io ic have high boiling point, covalents have low.
