Use a periodic table to find the elements that are most abundant in our Oceans:

A) H, Cl, O

B) Al, Fe, Ca, Na, K, Mg, O, Si

C) N, O, Ar

d) H, N, Ca, P, O, C

Which scientist established the law of octaves? A. Antoine Lavoisier B. Dmitri Mendeleev C. Henry Moseley D. John Newlands

I have two atoms. One with an atomic mass of 262 and its volume is 2. The second one has an atomic mass of 8 and its volume is 16. The density of the water is 1. Which atom would float and which atom would sink?

The best method for seperating a salt from water is 1 boiling 2 distilling 3 filtration 4 decanting

Of the following which is not a bronsted acid 1 HF 2 HSO4 - 3 F - 4 HNO3 5 H2CO3

The water-gas shift reaction co (g) + h2o (g) ⇌co2 (g) + h2 (g) is used industrially to produce hydrogen. the reaction enthalpy is δh∘=-41kj. to increase the equilibrium yield of hydrogen would you use high or low temperature?

Describe a proton, neutron, and electron. Where are these particles located inside an atom.

A sample of gas is at 273°K and 2.00 atm with a volume of 6.00 liters. When the gas is compressed to 3.00 liters and the pressure increases to 3.00 atm, what is the new temperature of the sample?

Which oxygen pachages materials and distributed them throughout the cell

How many atoms in 3 mol zn

Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons are atoms of the same element with different numbers of neutrons are atoms of the same element with equal numbers of