Which examples would be found in Earth's biosphere? Check all that apply.

bacteria

gases

oceans

plants

ponds

What happens when you boil water?

Uranium-235 has a half-life of 713 million years, while carbon-14 has a half-life of about 5,730 years. Which isotope would be more useful for dating a fossil from Precambrian time?

When water freezes it forms a lattice pattern and?

Where on the periodic table are the majority of radioactive isotopes found?

Given the unbalanced equation: Fe2O3 + CO - -> Fe + CO2, when the equation is correctly balanced using the smallest, whole number coefficients, what is the coefficient of CO?

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?