At STP, which of these substances is most soluble in H20?

1) NH3

2) KCl

3) HCl

4) NaNO3

How much more acidic is an acid with a pH of 6 than water with a pH of 7?

Based on charles's law, which of the following statements is true for an ideal has at a constant pressure and mole amount? A. The number of collisions is independent of volume B. The number of collisions decreases with increase in volume C.

Why is citric acid added to food? to add color to add tartness to add bitterness to add sweetness

Which of the following would you expect to form an ionic bond when combined? a) Li and Na b) Mg and Cl c) P and O d) H and Cl

A 5.0-gram sample of zinc and a 50.-milliliter sample of hydrochloric acid are used in a chemical reaction. Which combination of these samples has the fastest reaction rate? (1) a zinc strip and 1.0 M HCl (aq) (2) a zinc strip and 3.

What would happen if you tried to sqeeze a gas into a smaller container?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat