Tính hàm lượng % theo khối lượng của các kim loại trong các oxit sau: a) FeO ; ​b) CaO ; ​c) MgO ; ​d) Cu2O

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?

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