Answer:
Horizontal lines that represent different climate zones are called latitude.
Explanation:
Latitude is the distance that exists between a point on the Earth's surface to the equator, counted by the degrees of its meridian. That is, it is the distance, measured in degrees, that exists between any parallel and the line of the Equator. The latitude of a point is measured to the North or South of the zero parallel and its value can vary between 0 ° from the equator to 90 ° N from the North pole or 90 ° from the South pole.
Climate is related to latitude because it sets the amount of solar energy that a given region or place receives. Places located at high latitudes (far from the Ecuador) receive less sunlight than places located at low latitudes (near the Equator). Thus, cities distant from the equator and close to the poles have a cold climate, while at low altitudes there are high temperatures and a hot or tropical climate.
The percentage of Calcium carbonate in chalk = 100%
<h3>Further explanation</h3>
Given
1.51 g piece of chalk produces 0.665 g of carbon dioxide
Required
percentage of calcium carbonate
Solution
Reaction
CaCO3 (s) + 2 HCl (aq) → CaCl2 (aq) + H2O (l) + CO2 (g)
mol CO2 :
= 0.665 g : 44 g/mol
= 0.015
From the equation, mol CaCO3 = mol CO2 = 0.015
mass CaCO3 :
= mol x MW
= 0.015 x 100
= 1.5 g
Ionic bonds have high emelting point amf boiling point while covale t bonds have low melting point and boiling point.
ionic bonds cannot conduct electricity in solid state but can conduct in the molten state or when dissolves in water. while covalent bonds cannot conduct electricity in any state.
ionic bonds are soluble in water but insoluble in organic solvents while most covalent bonds are soluble in organic solvents but insoluble in water
Kl , if you look the four symbolizes that it is the limiting reactant
Answer:
I think it may be C because Newton's second law of motion states that the acceleration of an object equals the net force acting on the object divided by the object's mass.
There's also a possibility of B as well because the Law of force and acceleration but im not sure