Phosphorus and oxygen can covalently bond to form a polyatomic ion. Write the formula of a polyatomic ion that phosphorus and oxygen make. Make sure to include the ion charge.

Describe in detail the relationship between chemical bonds and energy. What must be true of the bonds for a reaction to be endothermic, and what must be true for the reaction to be exothermic?

What is difference between a pH of 8 and a pH of 12 in terms of H + concentration?

The atmospheric pressure of a cold winter day in NYC is 25.94 InHg. Calculate this value in Pa.

Zinc metal; copper (II) sulfate solution (a) Molecular equation: (b) Total ionic equation: (c) Net ionic equation:

Not needed anymore! Sorry for the inconvenience.

Which of the following is the correct definition of nuclear energy? energy produced from the splitting of atoms energy an object has because of its motion or position energy stored in chemical bonds of molecules energy resulting from the flow of

Ethyl acetate reacts with H2, in the presence of a catalyst to yield ethyl alcohol: C4H8O2 + 2H2--> 2C2H6O. A. How many grams of ethyl alcohol are produced by reaction of 2.7 mol of ethyl acetate with H2? B.

Why is it incorrect to balance a chemical equation by changing the subscripts?

Mendeleev's arrangement of elements in the periodic table was based on the observations and experiments of his predecessors who studied mass and properties of elements. True or false?

How many moles do you need to prepare 1.675 L of a 8.50 M NaOH solution? Round your answer to 2 decimal places.