Directions: Show all of your work for each of the following problems. 1. What is the % Mg in MgO?

2. What is the % H in Ca(C2H3O2)2?

3. What is the % Ba in Ba(NO3)2?

4. What is the % of each element in Ni3(PO4)2?

5. What is the % of each element in Al2(CrO4)3?

6. What is the % of each element in (NH4)2(SO4)?

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest