You're provided a 0.50 M solution of HCl. How many moles of HCl are present in 25 ml of this solution? ​

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

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.

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!