In which type of reaction is an atom of one element converted to an atom of a different element?

(1) decomposition (3) saponification

(2) neutralization (4) transmutation

How many moles of calcium chloride will be produced from 22.9 g of hydrochloric acid?

When a 36.7g sample of iron is placed in a graduated cylinder containing 20.0mL, the water level rises to 24.7mL. What is the density of iron?

Which sample of water contains particles having the highest average kinetic energy? A) 25 mL of water at 95°C B) 45 mL of water at 75°C C) 75 mL of water at 75°C D) 95 mL of water at 25°C

The color an object appears to be is the color of light that it absorbs.

True or False - when setting up your conversion problems every numerical value must have a unit on it.

Which of the following is a chemical property of water? boils at 100 °C Has a density of 1 gm/mL Is liquid at room temperature Reacts with pure sodium

Runs 2laps around a 400 meter track what is the displacement

Given the equation 2CH4 S8 - -> 2CS2 4H2S Calculate the moles of H2S produced when 1.5 mol S8 is used.

Which molecule is usually comprised of six carbons in a ring (with six sides) ?

Nitrogen dioxide has a volume of 775ml at STP. What is the new pressure in atmospheres if the volume changes to 615ml and the temperature to 25 degrees Celsius?