HELP PLEASE! 55 kernels of popcorn have a mass of 6.0 g before popping and 4.5 g after popping.

3.) Calculate the average mass of 1 kernel of unpopped popcorn.

4.) Calculate the average mass of water lost from 1 kernel of popped popcorn.

5.) How many water molecules are lost from an average kernel of popcorn?

HELP PLEASE

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.