At 25 ∘c, what is the mass in grams of 970.0 ml of water?

Water does not have particular density because density of water changes with temperature. Density decreases with increase in temperature. Density can be  defined as mass per unit of volume. The  formula used  to determine the density of an object is ρ = m/V, ρ = density, m = mass, and V = volume. Density of water is 1 g/ml at 0°C and density of water 0.997 g/ml at 25°C.

At 25°C, mass of water 1 ml is 0.997 g, So, mass of 970 ml is 967.09 g.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

c, liquids evaporate, creating a gas