Question

1. A symbol represents a short form of:
a. an atom of an element
(b) a molecule of an element
(c) a compound
(d) both (a) and (b)
2. Argentum is the Latin name of a metal, commonly called :
(a) tin
(b) silver
(C) arsenic
(d) calcium
3. A chemical equation is a short form of a :
(a) nuclear reaction (b) physical reaction (c) chemical reaction (d) both (a) and (c)
4. P. is the symbol of :
(a) an atom of potassium
(b) an atom of phosphorus
(c) a compound of phosphorus
(d) a molecule of phosphorus
5. All chemical equations must be balanced so as to comply with :
(a) Charle's law
(b) Avogadro's law
(c) Boyle's law
(d) Law of mass conservation
6. The correct formula for potassium nitrate is :
(b) KNO
(c) K NO2
(d) K2NO2
(a) KNO3​

Answer 1

1) both a and b

2) silver

3) both a and c

4) atom of phosphorus

5)law of mass conservation

6) KNO3

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