In which layer of earth do most earthauakes occur

A_ inner core

B_outer core

C_mantle

D_crust

2.2 Chromium has four naturally-occurring isotopes: 4.34% of 50Cr, with an atomic weight of 49.9460 amu; 83.79% of 52Cr, with an atomic weight of 51.9405 amu; 9.50% of 53Cr, with an atomic weight of 52.9407 amu; and 2.

What are HeLa cells?

Could a nucleus that has more than one proton but no neutrons exist? Explain.

What is how fast an objects speed is changing?

Consider a general reaction a) The ΔG° of the reaction is - 4.140 kJ mol. Calculate the equilibrium constant for the reaction. (Assume a temperature of 25°C.) b) What is ΔG at body temperature (37.0°C) if the concentration of A is 1.

A pool is being drained at a rate of 120 gallons per minute. what is the rate in liters per hour?

True or false: Chemical reactions can be detected by the formation of a gas.

List some common liquids that you think are acidic or basic. For example, do you think orange juice is acid or base? Why do you think each liquid is an acid or base?

Given the equation 4Al + 3O2 - -> 2Al2O3 if 325 grams of Al2O3 are to be formed, determine the mass of aluminum that must be reacted with excess oxygen. Question 4 options: 101.77g Al 26.9g Al 171.80g Al 6.38g Al

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.