When the reaction xC + yO2 zCO is balanced, what should the coefficients be? (Hint: x, y, and z represent the coefficients.) A. x = 1, y = 1, z = 2

B. x = 2, y = 1, z = 2

C. x = 2, y = 1, z = 1

D. x = 4, y = 1, z = 1

What is the mass of 1.5 moles of CO2? (1) 66 g (2) 44 g (3) 33 g (4) 29 g

What does it mean to say water is 11% hydrogen by mass

How many molecules are in 128g of H2O?

Some nighttime partygoers wear glow-inthe-dark necklaces. the necklaces start glowing once they are ""activated"" by snapping the necklace in a way that allows two chemicals to react and emit light in the form of chemiluminescence.

Transpiration is water loss through the root True False

An engineering team is conducting a trial launch of a new rocket. Which part of the engineering process is the team in?

What is a physical property of copper

Which of the following occurs when the ocean's salinity increases? a. density increases. b. density decreases. c. temperature increases. d. temperature decreases.

What name is given to the bond between water molecules?

Which of the following statements is false? The mean free path of a molecule depends on the size of the molecule.