A flask contains 400cm of a 5g/dm solution of potassium hydroxide. If all the
water was evaporated, what mass of
potassium hydroxide would remain?

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

What produces wave a)sound b) heats c)transfer of energy d)vibrations

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.