A solution of sodium chloride was made up using 75cm of water and 30g of iron chloride.
Calculate the concentration of the solution, in g/dm”, when all of the sodium chloride
dissolves in the water.

Which term best describes the form sound takes as it travels away from a drum (a- gas)(b-music) ( c-waves) (d-particles

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line