Answer:
evaporation
Explanation:
The process of evaporation is as a result of water absorbing energy from the sun.
The process is a phase change in which liquid water changes into gaseous form.
- The water in gaseous form is called vapor
- This water cools and condenses in the atmosphere as it loses the energy it has gained.
- For evaporation to take place, water must absorb energy from the sun or other heating bodies.
- This will then cause vaporization of the liquid water into a gaseous form.
Answer:
1. Calcium and fluorine
Symbol Ca F
Charges +2 1−
Formula CaF
2
2. Hydrogen and sulphur
Symbol H S
Charges 1+ 2−
Formula H
2
S
3. Nitrogen and hydrogen
Symbol N H
Charges 3− 1+
Formula NH
3
4. Carbon and chlorine
Symbol C Cl
Charges 4+ 1−
Formula CCl
4
5. Sodium and oxygen
Symbol Na O
Charges 1+ 2−
Formula Na
2
O
6. Carbon and oxygen.
Symbol C O
Charges 4+ 2−
C
2
O
4
i. e.
Formula CO
2
Explanation:
here is your answer Hope you will enjoy and mark me as brainlist
thank you
The theoretical yield is 160 g H₂O.
<em>Moles of H₂</em> = 18 g H₂ × (1 mol H₂/2.016 g H₂) = 8.93 mol H₂
<em>Moles of H₂O</em> = 8.93 mol H₂O × (2 mol H₂O/2 mol H₂) = 8.93 mol H₂O
<em>Theoretical yield</em> of H₂O = 8.93 mol H₂O × (18.02 g H₂O/1 mol H₂) = 160 g H₂O
Answer:
1.38 mol.
Explanation:
- It is known that every 1.0 mole of a molecule contains Avogadro's number of molecules (NA = 6.022 x 10²³).
<em><u>Using cross multiplication:</u></em>
1.0 mole of H₂SO₄ contains → 6.022 x 10²³ molecules.
??? moles of H₂SO₄ contains → 8.31 x 10²³ molecules.
<em>∴ The no. of moles in (8.31 x 10²³ molecules) of H₂SO₄ </em>= (1.0 mol)(8.31 x 10²³) / (6.022 x 10²³ molecules) = <em>1.38 mol.</em>
