Building Blocks of Chemistry

Can matter be created or destroyed?

• Yes, it can be created.
• Yes, it can be destroyed.
• No, matter is always conserved
• None of these

Tags

NGSS.HS-PS1-7

What is the law of conservation of mass?

• The part of the universe being studied
• The rest of the universe that interacts with the system
• Mass is not created nor destroyed, only can be rearranged.
• A system that freely exchanges matter and energy

Tags

NGSS.HS-PS1-7

What is the law of conservation of mass?

• Matter changes when reacted or changed.
• The mass of all reactants are changed during a physical or chemical change
• The mass of the reactants is the same as the mass of the products
• The mass of the products is different than the mass of the reactants.

Tags

NGSS.HS-PS1-7

Ernst Rutherford discovered which part of the atom through the use of gold foil?

• Proton
• Neutron
• Electron
• Orbitals

J.J. Thompson discovered the ____________. His model is called the plum pudding model which we sometimes call the chocolate chip model. 

• proton
• electron
• neutron
• nucleus

The experiment used by Ernest Rutherford to discover the nucleus of an atom. 

• Cathode Ray Experiment
• Gold Foil Experiment
• Reflector Experiment
• Plum Pudding Experiment

Tags

NGSS.HS-PS1-8

Subatomic particle that has a negative charge and is located outside of the nucleus.

• Electron
• Proton
• Neutron
• Voltron

Tags

NGSS.MS-PS2-3

What was INCORRECT about John Dalton's theory about atoms?

• All matter is made of atoms
• Atoms have no parts
• Atoms are too small to see
• Atoms of a given element are identical

What subatomic particle changes the identity of the atom?

• Neutron
• Proton
• Voltron
• Electron

Tags

NGSS.HS-PS1-8

What is the tiny, massive central part of the atom?

• Neutron
• Electron
• Proton
• Nucleus

Tags

NGSS.HS-PS1-8