Whatis the SI unit used by chemists to measure the amount of an element or substance

An element is a substance that cannot be broken down chemically into A. electrons. B. another substance. C. atoms. D. protons

The body of a man is lying in a pool of blood near the refrigerator in his kitchen. There is blood spatter on the refrigerator, its corresponding wall, and an adjacent wall.

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction 2NaN3 (s) - 3N2 (g) + 2Na (s) Identify the number of each atom in the reactants and products for this balanced reaction.

What factors affect the concentration of isotopes in water in different geographic areas?

Which resonance forms of silicon dioxide contribute the most to the actual bonding?

Magnesium has an atomic number of 12. To which atom would a magnesium atom transfer its valence electrons? A - HE B/C C - S D-B

Energy leaves the sun as light from a region called the?

How many moles of co2 are produced when 10 mol of propane (c3h8) is burned in excess oxygen?

Why are the spheres representing nitrogen and oxygen different colors