Mass measures

the amount of matter in an object

the weight of an object

gravity's effects on an object

the size of an object

A reaction produced 37.5 L of oxygen gas at 307 K and 1.25 atm. How many moles of oxygen were produced?

What is the name of the scientist who discovered the atoms have positive charges

How much energy is released during the formation of 1 mol H2O (g) ?

What is the balanced chemical equation for the galvanic cell reaction expressed using shorthand notation below?

Which method would be best to separate a mixture of sugar and water? separation by density separation by particle size filtration distillation

In most food webs there are many producers, fewer herbivores, and even fewer carnivores. Which statement best explains why there are always fewer carnivores than producers in a food web? A. There is not enough space to illustrate them. B.

Which of Deeandra observation is scientifically testable

A round, three dimensional object is a?

The energy needed to start a chemical reaction is called

How does the motion of particles in the sun's plasma compare to the motion of particles in a solid? particles in both the plasma and a solid move around to fill available space.