Which substances are needed in the smallest amount by a human body?

In a chemical reaction 48.6 grams of magnesium reacts with 32.0 grams of oxygen to form magnesium oxide how many grams of magnesium oxide would be produced from this reaction A) 82.6 grams B) 80.6 grams C) 16.6 grams D) 18.6 grams

Find the number of kilometers in 93.16 m. And Convert the answer in kilometers to centimeters.

Shaw's carries two types of apple juice. One is 100% fruit juice, while the other is only 40% juice. Yesterday there was only one 48-ounce bottle of the 100% juice left. I bought it, along with a 32-ounce bottle of the 40% juice.

Which of the following best represents potential energy being converted to kinetic energy?

5) Determine the mass in grams of 4.82 moles of water molecules if the molar mass of water is 18.02 g/mol

The line of longitude used as the origin in a system of coordinates

In the ground state, has only 1 electron in a p orbital. A. carbon B. fluorine C. hydrogen D. nitrogen E. aluminum

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?