Elements Compounds; Matter and Energy

When plants and animals interact with the atmosphere, they are exchanging which elements abundant in both the atmosphere and living things? A. Nitrogen and Oxygen B. Hydrogen and Calcium C. Phosphorus and Carbon D. Hydrogen and Oxygen

nitrogen and oxygen

This picture represents part of the Periodic Table. "Na" is called the element's- A. formula B. name C. symbol D. compound

symbol

All of the following elements are major components of living things on Earth EXCEPT - A. Nitrogen B. Carbon C. Sulfur D. Oxygen

Sulfur

Which of the following is the best description of an element? A. a substance that cannot be broken down into simpler substances B. a naturally occurring mineral made of more than one substance C. a small particle made with a specific chemical composition D. a collection of atoms that have different abilities when joined together

a substance that cannot be broken down into simpler substances

While elements and compounds are related, they are different. Unlike elements, compounds - A. consist of only one type of atom B. are the smallest form of a particle C. exist only as pure substance D. are made of at least two types of matter

are made of at least two types of matter

Compounds are different than elements because compounds are - A. combinations of two or more elements B. not able to be broken down into parts C. made from the same type of atoms D. a pure substance; elements are not

combinations of two or more elements

The atmosphere of Earth is comprised mostly of oxygen and - A. carbon B. hydrogen C. silicon D. nitrogen

Nitrogen

Which element is one of the most abundant in both solid parts of Earth and in living matter? A. Carbon B. Oxygen C. Nitrogen D. Phosphorus

Oxygen

How many total atoms are in this chemical formula? A. 10 B. 11 C. 12 D. 13

12

How many elements are in the compound Fe2O3?

2

Look at the given compound. Be3Al2SiO36 How many different elements are in the compound?

29

Provided is a list of five different substances How many of these substances are elements? A. 2 B. 3 C. 4 D. 5

3

How many atoms of Hydrogen are there in this chemical formula? NaC2H3O2 A. 8 B. 2 C. 3 D. 7

3 atoms

How many total atoms are in this chemical formula? A. 0 B. 1 C. 2 D. 3

3 atoms total

Which of the following elements is one of the major components of living organisms? A. Sulfur B. Carbon C. Copper D. Silicon

Carbon

This table has two columns of different kinds of matter. Which of the following is the best label for the second column? A. Atoms B. Pure Substances C. Compounds D. Mixtures

Compounds

Which of the following is a compound? A. Water B. Oxygen C. Chlorine D. Aluminum

Water