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75g = 0.075kg/ 37.5cm³ = (37.5 divided by 100³) m³ = 3.7510^-5m³/ density = mass divided by volume/ 0.075 divided by 3.7510^-5 = 20...

X=6m

The movement of water through a partially permeable membrane.

Reactivity increases as you go down the group.

This is a quadratic equation, for these types of questions it is often easiest to try and rearrange the formula into the form ax^2 + bx + c = 0, where a, b and c are whole numbers. Therefore the first thi...