What is the mass of a sample of a substance with a volume of 120 ml and a density of 0.75 g/ml?

In pea plants, smooth seeds (S) are dominant and wrinkled seeds (s) are recessive. In a cross between two heterozygous plants, what are the possible allele combinations and seed types of the offspring?

Which of the following can you use to justify the statement that the iron found in a sample of iron oxide is an element and not a compound? A. The mass of the iron oxide is greater than the mass of the iron alone. B.

A newly discovered metalloprotein, which contains four atoms of fe per molecule of protein, is found to be 0.600% fe by mass. calculate the molar mass of the metalloprotein.

Which is true about equilibrium the concentration of reactants is always less than the concentration of products the concentration of reactants is always equal to the concentration of products the concentration of reactants is always greater than

A chemist mixes 65.6 g of ethanol with 15.1 g of acetone and 99.6 g of 4-methyl-2-pentanone. Calculate the percent by mass of each component of this solution. Round each of your answers to 3 significant digits

Explain the difference between two types of elements with respect to the atoms

The ro - group is the nucleophile. think about which group in the alkyl halide (iodoethane) is the leaving group. keep in mind that the leaving group may be one atom or a group of atoms.

An organic compound is classified as aromatic if it cyclic and has a fragrant odor true or false

Which subatomic particles differ in number for two isotopes of the same element, and which subatomic particles will stay consistent between two isotopes of the same element? Explain how you know.

What is the oxidation state of an individual phosphorus atom in PO33-?