Is water an element compound or mixture

Which best describe earths magnetic field

Whenever chemical bonds are broken, energy is. whenever chemical bonds form, energy is?

A balloon inflated in a room at 27 degrees celsius has a volume of 8.00 L. the balloon is then heated to a temperature of 78 degrees Celsius. What is the new volume if the pressure remains constant?

What is the percent composition of the u. s quarter, which has the mass of 5.670g and contains 5.198g Cu and 0.472g Ni

3. What detrmines the identity of an atom?

Which statements about the periodic table's organization are true? Select all that apply. The periodic table is organized by atomic number. The periodic table is organized by reactivity. The periodic table is organized by atomic mass.

He definition "'oxygen' means an element having an atomic weight of 8 and an atomic number of 16" is an example of:

From oxygen silicon chlorine argon which one is a metalloid

Which of the following transfers carbon from the nonliving environment to the living environment? Photosynthesis Cellular respiration Burning Decomposing

Which term describes this reaction? CH3Br (aq) + OH - (aq) - > CH3OH (aq) + Br - (aq) a. addition b. condensation c. elimination d. substitution