Question

Question 3
State "true or false
a) No new substance is formed during a chemical reaction.
b) Balancing a chemical equation is based on law of conservation of mass.
c) In some chemical reactions, an insoluble precipitate is formed when two solutions are mixed
d) Aluminium is good conductor of electricity.
e) Rust is hydrated ferrous oxide.
1) Neon is used to make advertising signboards.
g) Antimony is used in filling electric bulbs.
h) Rusting is very fast process.
i) Excluding inert gases we have only fifteen non metals.
1) The symbolic representation of a molecule is called its molecular formula.​

Answer 1

Answer:

1. false
2. true
3. false
4. true
5. false
6. false
7. false
8. true
9. false
10. true

Explanation:

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