1.a) All except copper can react with dilute sulphuric acid.
REACTION OF DILUTE SULPHURIC ACID WITH COPPER (II) CARBONATE
CuCO3 (s) + H2S04 (aq)———> CuSO4(aq) +CO2(g)+ H2O (l)
REACTION OF COPPER (II) OXIDE WITH DILUTE SULPHURIC ACID
CuO (s) + H2SO4 (aq)———> CuSO4 (aq) + 2H2O (l)
Answer:
D) 1 iron(II), 2 chloride
Explanation:
Iron II chloride is the compound; FeCl2. It is formed as follows, ionically;
Fe^2+(aq) + 2Cl^-(aq) -----> FeCl2
The formation of one mole of FeCl2 involves the reaction one mole of iron and two moles of chloride ions. This means that in FeCl2, the ratio of iron to chlorine is 1:2 as seen above.
Therefore there is one iron II ion and two chloride ions in each mole of iron II chloride, hence the answer.
The answer is (A), it was put into place because the government was not being equal with everyone's rights.
Answer:
magnesium
Explanation:
magnesium is in Group 2, in the periodic table. this means that it has 2 valence electrons. the less valence electrons an element or atom has, the more reactive. Selenium has 6 valence electrons. as a result, Mg is more reactive
Explanation:
Heat is a form of thermal energy.
Heat is the sum of all the energy of the molecular motion in an object.
Temperature measures the average heat possessed by each molecule in a given substance.
Molecules at a higher temperature possess more kinetic energy and they will move faster. This kinetic energy form is the heat variant of thermal energy.
Temperature is the measure of this heat energy of molecules.
