B) chemical bond i believe is the correct answer
1, When temperature is increased the volume will also increase. this is because the particles will gain kinetic energy and bombard the walls of the container of the gas at a higher frequency, therefore, for the pressure to remain constant as per Charles' law, the volume will have to increase so that the rate of bombardment remains constant. This is explained by the Charles law which states that the volume of a gas is directly proportional to the absolute temperature provided pressure remains constant.
2. When temperature is Decreased the volume will also Decrease. this is because the particles will loose kinetic energy and bombard the walls of the container of the gas less frequently, therefore, for the pressure to remain constant as per Charles' law, the volume will have to reduce so that the rate of bombardment remains constant. This is explained by the Charles law which states that the volume of a gas is directly proportional to the absolute temperature provided pressure remains constant.
3. When temperature is increased the pressure will increase. This is because the gas particles gain kinetic energy and bombard the walls of the container more frequently. this is according to Pressure law which states that for a constant volume of a gas the pressure is directly proportional to absolute temperature
4. When temperature is decreased, pressure will decrease, This is because the gas particles lose kinetic energy and bombard the walls of the container less frequently. this is according to Pressure law which states that for a constant volume of a gas the pressure is directly proportional to absolute temperature
5. When particles are added, pressure will increase. This is because the bombardment per unit area also increases. Boyles law explains this, that at fixed temperature the volume of a gas is inversely proportional to the pressure.
6. When particles are removed, the pressure will decrease. This is because the bombardment per unit area also decreases. Boyle's law explains this, that at fixed temperature the volume of a gas is inversely proportional to the pressure.
Answer:
A, because as metal warms, it expands, and makes it easier to remove
Explanation:
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Answer:
4FeS2 + 6O2 > 2Fe2O3 + 8SO2
Explanation:
Answer:Ks = [Ca2+]^3 . [PO4 3+]^2
Ks (solubility product) is the product of calcium ion concentration multiplied by phosphate ion concentration
Explanation: when a salt is added to water it dissolves and the molecules dissociates into ions. It can be represented in the equation:
Ca3(PO4)2(s) <--> 3Ca2+ (aq) + 2PO4 3+ (aq)
Where s and aq indicate the state in which the molecule is. S for solid and aq for aqueous.
This solution reach and equilibrium, that means that salt is dissociated at the same rate that ions reunite to form a molecule.
In chemical equilibrium there is a constant that reflects this rate and is generally expressed as: K = [D]^d .[C]^c/ [A]^a .[B]^b
D, C represent products and A, B reagents. Lower case letters are the stoichiometric coefficients.
Another thing to remind is that only gases and aqueous molecules are taking into account in the constant, solids and liquids do not affect it and values are replace in the equation by 1.
Now, Ca3(PO4)2 is in solid state so it doesn't affect Ks, in that case only concentrations of Ca and PO4 are useful. Since these ions are products, the expression of Ks is
Ks= [Ca2+]^3 . [PO4 3+]^2