Answer:
5.50g (corrected to 3 significant figures)
Explanation:
mass = no. of moles x molar mass
molar mass of CO2 = (12.0107 + 15.999x2) =44.0087
Therefore, mass = 0.125 x 44.0087
= 5.50g (corrected to 3 significant figures)
Answer:
Oxygen- 6
Calcium-2
Nitrogen-5
Aluminum-3
Flourine-7
Explanation:
A Lewis structure or dot electron structure is a representation of an atom in which the valence electrons on the outermost shell of the atom are represented as dots.
These dots show the number of valence electrons as well as the group to which the atom belongs in the periodic table.
Answer:
9√3
Explanation:
Given that :
UV = 18
Angle V = 60°
To obtain the measure of UW = v
Using trigonometry :
Sinθ = opposite / hypotenus
Sinθ = UW / 18
θ = 60°
sin60° = UW / 18
Sin 60° = √3/2
√3 /2 = UW / 18
UW = 18 * √3/2
UW = 9 * √3
UW = 9√3
Answer:
Carbon is also found in the atmosphere where it's a part of carbon dioxide gas emitted when fossil fuels are burned and when living organisms breathe. It's in organic matter in the soil, and it's in rocks. But far and away the most carbon on Earth is stored in a surprising place: the ocean. Carbon is also found in the atmosphere where it's a part of carbon dioxide gas emitted when fossil fuels are burned and when living organisms breathe. It's in organic matter in the soil, and it's in rocks. But far and away the most carbon on Earth is stored in a surprising place: the ocean.
Hope this helps!
Answer:
See below.
Explanation:
1 H (hydrogen) has a nucleus of just 1 proton.
2 H (deuterium) has a nucleus of 1 proton and 1 neutron
3 H (tritium) has a nucleus of 1 proton and 2 neutrons.
