1.

Two children born to the same parents have many similarities, but overall, they have

different appearances. How is this possible?

Isotopes are atoms of the same element with different numbers of

Select all that apply: Select the benefits of sexual reproduction. promotes adaptations increases genetic diversity increases chances of survival uses less energy

What is a boundary? Explain the possible ways plates can move.

How many grams of cabr2 are needed to prepare 4.65 l of a 7.65 m solution?

What happens to a system in dynamic equilibrium when it is disturbed in some way?

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?

Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte. a) LiClO4 b) HClO c) CH3CH2CH2OH d) HClO3 e) CuSO4 f) C12H22O11

Give examples of temporaty physical change

Which of these is a source of sediment? A. Fragments of other rocks B. Chemicals and Minerals dissolve in water C. Sea shells D. All of the above