18 g
Explanation:
Remember that 1g is equivalent to 1 ml;
1g = 1 mL
100 g = 100 mL
Therefore in an 18% NaOH solution, for every 100 mL, there is 18 g of dissolved NaOH. This is how we derive the percentage solution;
18 g / 100 g = 18%
The doppler effect, when used with light, produces a shift of frequencies to red. Well, no matter which direction you look, there is a shift to red! That means that the universe is expanding or moving away from us in every direction. The idea, is that this could only happen if all matter was once in a single point, and there was an explosion. This explosion from a single point is called the big bang theory.
A nebula is a cloud of gases that can coagulate to become a new star.
Answer:
The rain containing excess of acids called an acid rain.
Explanation:
The rain becomes acidic because of harmful gases like carbon dioxide,
sulphur dioxide and nitrogen dioxide which are emitted as smoke from
vehicles and industries. These harmful gases dissolve in rain drops to
form carbonic acid, sulphuric acid and nitric acid respectively.
Effects of Acid Rain
Acid rain makes the water of lakes, ponds and rivers too acidic
due to which fish and other aquatic animals get killed.
Acid rain eats up the leaves of the trees gradually. By losing
leaves, the trees die. Acid rain also damages crop plants in the
fields.
Acid rain damages the metal structures like steel bridges, etc
when it falls on them.
Acid rain damages the surfaces of buildings and monuments made
up of marble.
Explanation:
3 ka answer sugar is salute because it get dissolved inwater
Answer:
n unicellular organisms, oxygen diffuses across the cell membrane into the cell. Carbon dioxide diffuses out of the cell once the concentration of carbon dioxide is higher inside the cell than it is outside of the cell. Some micro-organisms, including some bacteria and fungi, can survive without oxygen.
Explanation:
