Answer:
The answer to your question is: letter B
Explanation:
The information given is showing us three kinds of carbons and their respective number of protons and neutrons. Now, let's analize the options given:
A.)Carbon Bond Types This option is about trhe kind of bonds carbon is able to form like single, double or triple and is different from the information descrive above. So ,this option is incorrect.
B.)Carbon Isotopes is option is about the carbon atoms that have the same number of protons and different amount of neutrons exactly as it is describe above, to this option is correct.
C.)The Carbon Cycle
this option is about how carbon goes from one kind of matter to another and is completely different to the description given above, so this option is incorrect.
D.)Chemical Reactions this option is about reactants that after a process give products they could be from carbon -12, carbon-13 or carbon-14 and other elements, so this option is different from the description given above.
The symbol for the hydronium ion is H3O+.
An hydronium ion is usually formed when an acid is present in water. The hydronium ion is made up of three atoms of hydrogen and one atom of oxygen, thus an hydronium ion is a water molecule which has gained an extra positive hydrogen ion.
1.B
2.A
3.B
4.A
5.B
6.B
7.A
Natural selection is what nature it self makes to enhance or mutate the species for survival of the finest but selective breeding is where humans mutate animals or plants to make them better, whether of use or taste, for our use.
Answer:
Kc = 1.4752
Explanation:
- CH4 (g) + 2H2O (g) ↔ CO2 (g) + 4H2 (g)
⇒ Kc = ( [ CO2(g) ] * [ H2 ]∧4 ) / ( [ CH4 ] * [ H2O ]² )
∴ [ CO2 ] = ( 8.01 g * ( mol / 44.01 g ) ) / 1.5 L
⇒ [ CO2 ] = 0.1213 M
⇒ [ H2O ] = 0.877 mol / 1.5 L = 0.585 M
⇒ [ CH4 ] = 0.380 mol / 1.5 L = 0.253 M
⇒ [ H2 ] = (( 0.380 mol CH4 ) * ( 4 mol H2 / mol CH4 )) / 1.5 L = 1.013 M
⇒ Kc = (( 0.1213 ) * ( 1.013 )∧4 ) / (( 0.253 ) * ( 0.585 )² )
⇒ Kc = 1.4752