Answer:
newton's 3 laws state:
- an object in motion stays in motion (unless an external force acts on it)
- every action has an opposite but equal reaction
- force= mass x acceleration
The cell will gain water and eventually swell up and burst
I believe the answer is B, or option 2. It makes the most sense, and is a fact.
a) Answer:
= 210,000 gram or 210 Kg
Explanation:
14 hr is equivalent to;
= 14 × 3600 s
But;
8.2x10^4 A = 8.2x10^4 Coulomb /second = 8.2x10^4 C/s
1 Faraday = 96485C
Molar mass of Li: 6.941 g/mol
Therefore;
{(8.2x10^4 C/s)×(14×3600s)×(6.941 g/mol)/(96485C/mol)}×70%
= 2.1x10^5 gram or 210 kg
b. Answer;
= 0.23 kWh/mol
Explanation and solution;
Energy per mole is given by;
(96485C/mol) × (8.4V) = 8.10x10^5 (J/mol)
= 8.10x10^5 (Ws/mol)
Divide by 3600s/h to get:
= 8.10x10^5 (Ws/mol)
= 225 Wh/mol
= 0.23 kWh/mol
1. Inorganic combustion
2. Organic combustion
<h3>Further explanation</h3>
Given
The chemical equations
Required
Balanced equation
Solution
Organic compounds have the characteristic that there is a chain of carbon atoms, while inorganic does not have a chain of carbon atoms
The reaction of a substance with oxygen is called a combustion reaction
Complete combustion of carbon compounds will get CO₂ gas, whereas if it is not complete it will produce CO gas
So Organic : contain a carbon atom (and often a hydrogen atom)
1. Ca + O₂ ⇒ CaO₂
Inorganic combustion⇒does not contain carbon
2. C₃H₂O + 3O₂ → 3CO₂ + H₂O
Organic combustion