Chemistry Review

How many significant figures does 1.003401 has?

• 5

• 6

• 7

• 8

How would you describe the data in this image in terms of accuracy & precision?

• High Accuracy, High Precision

• Low Accuracy, Low Precision

• High Accuracy, Low Precision

• Low Accuracy, High Precision

What law of matter states that " A chemical compound always contains the same elements combined together in the same proportion by mass"?

• Law of Conservation of Mass

• Law of Constant Composition

• Law of Multiple Proportions

• None of the Choices

What law of matter states that "the mass of the products in a chemical reaction must equal the mass of the reactants"?

• Law of Conservation of Mass

• Law of Constant Composition

• Law of Multiple Proportions

• None of the Choices

What type of solid are known as super cooled liquids and have fixed shape and volume but their particles are not arranged in a regular geometric pattern?

• Amorphous Solids

• Crystalline Solids

This composition of matter are neutral particles made of two or more atoms bonded together.

• Atoms

• Ions

• Molecules

• Subatomic Particles

What subatomic particle/s has a negative charge and has a very negligible mass?

• Electrons

• Neutrons

• Protons

Convert 26.85 degrees Celsius into Kelvin

• 26.85 K

• 246.3 K

• 300 K

• 314.5 K

Who discovered protons?

• Thomson

• Chadwick

• Rutherford

• Goldstein

What do you call the attribute of matter that is independent of its chemical composition?

• Physical Properties

• Chemical Properties

• Nuclear Properties

• Chemotaxis Properties