Answer:
We are moving against gravity
The correct answer is C. In the periodic table nitrogen has 5 valence electrons and needs 3 more electrons to obtain an octet. So it would form three covalent bonds with another nitrogen and that would be a triple bond.
A is incorrect because oxygen is in group 6 and only needs 2 electrons to achieve an octet. So it would form two covalent bonds with the other oxygen to give a double bond.
B is incorrect because Cl is in group 7 and only needs 1 electron to achieve an octet. So it forms a single bond with the other Cl atom.
D is incorrect because helium is in Group 8, a noble gas, which means its valence shell is completely filled, hence no bonding can occur.
The answer is <span>B. Fusion occurs inside the sun. It creates light and heart that sustain life on earth.
The Sun creates its own energy through fusion. This also happens in larger stars as well.
Have a good day! =)</span>
Answer:
Explanatio
NCO2= 0, 248 /44= 0 ,005636
VCO2= 0,005636* 22,4= 0 ,126254545
Isotopes of the same element have different mass numbers.
C. mass numbers.
one mole of copper has 6.02 x 10²³ atoms
C. 6.02 * 10²³ atoms.
