False. Due to:
Entropy increases with molecular size (mass of compound)
HBr has greater molecular size (molar mass) than HCl
The value of standard entropy of HCl(g) is 187 joules/ kelvin
The value of standard entropy of HBr(g) is 199 joules / kelvin
Answer:
CaCl₂ + CuSO₄ → CaSO₄ + CuCl₂.
Explanation:
- It is a replacement reaction, that cations and anions are replaced with each other.
So, it gives CaSO₄ and CuCl₂.
- To balance the reaction, we apply the law of conversation of mass, that the no. of atoms in the reactants side is equal to that in the products side.
So, the balanced reaction is:
<em>CaCl₂ + CuSO₄ → CaSO₄ + CuCl₂.</em>
Answer:
1st one is correct, Igneous rocks are formed when molten rock cools and hardens.
Answer:
The answer is <em><u>A</u></em>.
Cations are formed when an atom or group of atom loses one or more electrons. The resulting species has more protons than electrons, so it has an overall positive charge.
Water is H2O, so 2 molecules of Water will be 2H20
