CHEMICAL REACTIONS - BNSG
T
F
1. Almost everything is made of chemicals.
T
F
2. Chemical Reactions happen when electrons “hook together” (bond).
T
F
3. Metal rusting, digesting food and burning candles are chemical reactions.
T
F
4. HOH = water
T
F
5. FE in our blood makes it turn red.
T
F
6. Vinegar + Baking Soda (NaHCO3) = CO2
T
F
7. Na–Sodium Cl–Chlorine These elements by themselves are not poisonous.
T
F
8. The common name of sodium chloride is vinegar.
T
F
9. Adding Na to H20 causes a reaction because of the strong electron pull.
T
F
10. Pyrotechnicians manufacture / use fireworks.
T
F
11. In fireworks, metals give colour, adding salts causes twinkles.
T
F
12. Adding powdered aluminum to fireworks gives loud bangs
T
F
13. Sodium Bicarbonate is the chemical name for baking soda.
T
F
14. Chemicals combine to form a new substance.
Chemical reactions release energy / cause heat (& sometimes light).
T
F
15. Alfred Nobel was a Swedish chemist. He invented T.N.T.
The Nobel Prize is awarded to people who’ve done great works for
humanity. The prize is worth almost $1 million.
BONUS: Bill says there are _____ elements that naturally occur in the Periodic Table.
CHEMICAL REACTIONS – BNSG - ANSWERS
F
1. Almost everything is made of chemicals.
T
2. Chemical Reactions happen when electrons “hook together” (bond).
T
3. Metal rusting, digesting food and burning candles are chemical reactions.
T
4. HOH = water
F
5. FE in our blood makes it turn red.
T
6. Vinegar + Baking Soda (NaHCO3) = CO2
F
7. Na–Sodium Cl–Chlorine These elements by themselves are not poisonous.
F
8. The common name of sodium chloride is vinegar.
T
9. Adding Na to H20 causes a reaction because of the strong electron pull.
T
10. Pyrotechnicians manufacture / use fireworks.
F
11. In fireworks, metals give colour, adding salts causes twinkles.
T
12. Adding powdered aluminum to fireworks gives loud bangs
T
13. Sodium Bicarbonate is the chemical name for baking soda.
T
14. Chemicals combine to form a new substance.
Chemical reactions release energy / cause heat (& sometimes light).
T
15. Alfred Nobel was a Swedish chemist. He invented T.N.T.
The Nobel Prize is awarded to people who’ve done great works for
humanity. The prize is worth almost $1 million.
BONUS: Bill says there are
92
elements that naturally occur in the Periodic Table.