In the following reaction, 451.4 g of lead reacts with excess oxygen forming 365.0 g of lead (II) oxide. Calculate the percent yield of the reaction.

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?

How do plants get nutrients from animals? A. When the animal dies, it decays and the nutrients from its body go back into the earth where they are absorbed by plants. B. House plants get nutrients from plant food; other plants don't get any. C.

What is one disadvantage of out free market society

I don't get it how the question says select all that apply and only give us one answer don't you think its common sense that there is more than one answer?

A chemist measures the amount of hydrogen gas produced during an experiment. she finds that 926. g of hydrogen gas is produced. calculate the number of moles of hydrogen gas produced.

George is writing an essay about the role of observation and inference in the development of the atomic theory. He wants to explain why it was more difficult to observe the presence of neutrons in atoms.

Which pair of statements below is correct? Multiple Choice An octet is formed via ionic bonding when one or more valence electrons are transferred from one atom to another.

If wave A has a frequency of 4.60 x 10^14 s-1, what is the wavelength in nanometers (show your work) ?

What is the mass in grams of 85.32 mL of blood plasma with a density of 1.03 g/mL?

The molar solubility of Ag2CO3 is 0.074M at 10°C. What is the Ksp of Ag2CO3 at the same degree?