envo chem top 1.1, 1.2,1.3. 2.1

Question 1

What is ph

Answer 1

pH measures the acidity or basicity of a solution. It stands for “power of hydrogen” and is a scale that ranges from 0 to 14, with 7 being neutral

Question 2

What is the 10 fold rule

Answer 2

for each unit increase in pH, there is a 10 fold increase in the hydrogen ion concentration

Question 3

Neutrlization reaction

Answer 3

A neutralization reaction is a type of chemical reaction between an acid and a base

Question 4

what are the reactants and products

Answer 4

The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

Question 5

What ways do we measure acidity

Answer 5

litmus paper, pH paper, cabbage juice, phenol red

Question 6

What is nitrogen fixation

Answer 6

a chemical process that converts atmospheric nitrogen into ammonia, which is absorbed by organisms

Question 7

How does nitrogen fixation occur

Answer 7

fossil fuels, industrial processes

Question 8

Organic elements

Answer 8

organic compounds are compounds that include carbon atoms(ex.Carbohydrates
Lipids,Proteins and amino acids,Nucleic acids).

Question 9

inorganic elements

Answer 9

do not contain carbon atoms

Question 10

Fertiliser 3 chemicals and ratio

Answer 10

10 percent nitrogen, 15 percent phosphorus, and 10 percent potassium.