That it is number 17 35.45 it's period is 3.
Hope that helped ^^
<span>Answer:
Cubane, C8H8
It "sorta" looks like this.
....H.........H
......\......../
H.....C - C
...\../.|.../.|
....C - C.C- H
.... |.....|./
....C - C
.../.........\
H............H
Imagine a cube of carbon atoms, with a single hydrogen attached at each of the 8 corners. That way we have complete symmetry, since all of the bonds, carbons and hydrogens have the identical environment.</span>
Answer:
the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.
Explanation:
Answer:
Explanation:
We have to start with the <u>reaction</u>:
We have the same amount of atoms on both sides, so, we can continue. The next step is to find the <u>number of moles</u> that we have in the 110.0 g of carbon dioxide, to this, we have to know the <u>atomic mass of each atom</u>:
C: 12 g/mol
O: 16 g/mol
Mg: 23.3 g/mol
If we take into account the number of atoms in the formula, we can calculate the <u>molar mass</u> of carbon dioxide:
In other words: 
. With this in mind, we can calculate the moles:
Now, the <u>molar ratio</u> between carbon dioxide and magnesium carbonate is 1:1, so:
With the molar mass of 
(
. With this in mind, we can calculate the <u>grams of magnesium carbonate</u>:
I hope it helps!
Energy must be removed because particles in liquid move more slowly. This statement best describes the transition from gas to liquid.
Option A
<u>Explanation:</u>
The process of transferring from gas to liquid is termed as condensation. It requires the release of energy from the gas molecules to condense them as liquid. Gas molecules inherit large amount of energy in order to move fast as the particles of gas moves faster compared to liquid.
Thus, the extra energy need to be released before converting it to liquid which has particles having less velocity of particles. So the statement describing the transition from gas to liquid is that the energy must be removed because the particles in liquid move more slowly.
