Chemistry Praxis

This shows a table salt molecule. What is it?

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

An element is

• Made up of different types of atoms

• Made up of the same type of atoms

• none of the above

• all of the above

Tags

NGSS.MS-PS1-1

Made up of only 1 type of atom

• Compound

• Molecule

• Element

• Mixture

Tags

NGSS.MS-PS1-1

What is the atomic number of Carbon?

• 4

• 6

• 8

• 12

Which of the following is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the chemical formula for table salt?

Which element is known as the 'King of Chemicals'?

• Sulfuric Acid

• Hydrochloric Acid

• Nitric Acid

• Acetic Acid

What is the pH level of pure water?

• 0

• 7

• 14

• 10

Which of the following is an exothermic reaction?

• Photosynthesis

• Melting of ice

• Combustion of gasoline

• Evaporation of water

Tags

NGSS.HS-PS1-4

What is the main component of natural gas?

• Methane

• Ethane

• Propane

• Butane