How many moles of water, h2o contain 2.0x10^23 molecules of water?

For proper ph balance within the human body, what is the ratio of bicarbonate ions to carbonic acid molecules?

If 19.7 g of AlI3 is actually produced, what is the percentage yield? 2 Al + 3 I2 → 2 AlI3

What can be described as the breaking of old bonds and forming of new ones? A. chemical reaction B. atomic state C. conduction D. induction

Consider this reaction: KOH + HBr - -> KBr + H2O Which statement is most likely true about KOH? A) It turns blue litmus red. B) It turns clear phenolphthalein pink. C) It reacts with metals to form hydrogen gas.

Which too factors determine whether a collision between two reactant molecules will result in a reaction? select all that apply. The energies of the colliding particles much be equal to each other.

Testing a hypothesis is called a

When molten rock undergoes crystallization above ground, what type of rock results? a. intrusive igneous rock b. extrusive igneous rock c. metamorphic rock d. sedimentary rock

A 150ml sample of hydrochloric acid completely reacted with 60.0mL of a 0.100 M NaOH solution. What was the original concentration of the HCl solution

Rearrange in to a quadratic 5.333 = (0.6 + 2p) ² / (0.135 - p)

How hot would a 2.3 L balloon have to get to expand to a volume of 3.0 L? Assume the initial temperature of the balloon is 24 °C, and that the pressure inside the balloon remains constant. A. 3 K B. 42 K C. 128 K D. 390 K