Fill in
the blanks in the following statements:
(a) When carbon dioxide is passed through lime
water, it turns milky due to the formation of _________.
(b) The
chemical name of baking soda is _________.
(c) Two
methods by which rusting of iron can be prevented are _________
and
____
____.
(d) Changes in which only _____
__ properties of a substance change
are called physical changes.
(e) Changes
in which new substances are formed are called _________changes.
Fill in the blanks in the following statements:
(a) When carbon dioxide is passed through lime water, it turns milky due to the formation of _________.
(b) The chemical name of baking soda is _________.
(c) Two methods by which rusting of iron can be prevented are _________ and
____ ____.
(d) Changes in which only _____ __ properties of a substance change are called physical changes.
(e) Changes in which new substances are formed are called _________changes.
(a) When carbon dioxide is passed through
limewater, it turns milky due to the formation of __calcium
carbonate (CaCO3)_
.
(b) The
chemical name of baking soda is __sodium
hydrogen carbonate__.
(c) Two methods by which rusting of iron can be
prevented are __galvanization__
and __ painting__.
(d) Changes in which only __physical__
properties of a substance change are called physical changes.
(e) Changes in which new substances are formed are
called __chemical__
changes.
(a) When carbon dioxide is passed through limewater, it turns milky due to the formation of __calcium carbonate (CaCO3)_ .
(b) The chemical name of baking soda is __sodium hydrogen carbonate__.
(c) Two methods by which rusting of iron can be prevented are __galvanization__ and __ painting__.
(d) Changes in which only __physical__ properties of a substance change are called physical changes.
(e) Changes in which new substances are formed are called __chemical__ changes.
