1. what is hard water.
2. Mention four sources of water.
3. write down the chemical formula o...
1. what is hard water.
2. Mention four sources of water.
3. write down the chemical formula of water.
4. What is purification of water.
5. Mention two importance of purification of water.
6. Mention 4 method used ot purify water. 7. Mention 4 impurities found in water.
8. Explain the term contaminated of water.
9. State two physical properties of water. 10. mention the names of of the elements that causes hardness in water.
Answers: 2
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
Answers: 3
Chemistry, 22.06.2019 02:10
Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %
Answers: 2
Chemistry, 22.06.2019 13:00
Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these
Answers: 2
History, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
History, 09.12.2020 20:00
Computers and Technology, 09.12.2020 20:00
English, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Chemistry, 09.12.2020 20:00
Social Studies, 09.12.2020 20:00