Is it true that protons, neutrons and electrons differ from each other based on their locations in an atom but they have the same electrical changes

The second-order rate constant for the reaction A + 2 B - >C + D is 0.34 dm' mo1·• s'. / /'hat is the concentration of C after (i) 20s, (ii) 15 mi n when the reactants are mixed with initial concentrations of [A] = 0.027 mol dm • 1 and [BJ = 0.

According to the law of conservation of, the number of atoms in the products of a chemical reaction must be balanced with the number of atoms in the reactants.

When an atom becomes an ion does its mass number change?

Which of these four liquids is a mixture, made up of parts, some of which can be separated by flirtation? a. Salt water b. Skimmed milk c. Orange juice with pulp d. Distilled water

The enthalpy change for the reaction, 2CO (g) + O2 (g) 2 CO2 (g), can be calculated from ΔHf values for each reactant and product. Which substance or substances in this equation have a ΔHf value equal to 0.

On melting of ice, there is a decrease in volume instead of increase. Why?

When a dolphin jumps, it moves its muscles and chemical potential energy is converted to kinetic energy. Some of this energy is lost to the dolphin. Explain why this phenomenon does not violate the Law of Conservation of Energy.

If a bat with a mass of 5 kg and acceleration of 2 m/s2 hits a ball whose mass is 0.5 kg in the forward direction, what is the reaction force of the ball on the bat? A) 0 N, forward B) 10 N, forward C) 10 N, backward D) 0.5 N, upward

Which statement best explains why heating a liquid affects its viscosity?

Calculate the ph of a 3.78*10-3 m solution of naf, given that the ka of hf = 6.80 x 10-4 at 25°c.