How do the atomic mass and atomic number compare for helium?

a) The atomic mass is greater.

b) The atomic number is greater.

c) The atomic mass and atomic number are equal.

d) Helium does not have an atomic number.

If EG = 19 and FG = 12 then EF = ?

If an element is located on the far right side of the periodic table, what would one of its physical properties probably be? a. easily drawn into thin wires b. poor conductor of electricity c. high density d. malleable

Facts about osmosis and

Agarose gels can be used to study what size of DNA fragments?

PH tells how acidic or basic a solution is.

Which option is true about the effect of polarity on solubility? Select all that apply. Polar solutes dissolve better in water than in oil. Polar solutes have the greatest solubility in nonpolar solvents.

Which change results in a release of energy? 1. The melting of H₂O (S) 2. The boiling of water (L) 3. The evaporation of H₂0 (L) 4. The condensation of H₂0 (G)

What changes nitrogen gas in the air to nitrogen compounds that fall to the ground

Which element has an isotope mass number of 32 and is used as an ecological tracer?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law