Some elements located on the periodic table in groups 3 to 12 have valence electrons in the d - or f - orbitals. What are these elements called?

A. representative elements

B. transitional elements

C. actinides

D. lanthinides

List three types of single-celled organisms.

How many elements exist in the liquid state at room temperature

What is most misleading about the contour map shown below? The contour interval is too large to see much detail in the landscape. The contour interval is too small, making the map hard to read. The contour interval is inconsistent.

Write a balanced chemical equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (c6h12o6) and oxygen gas.

Sodium hydroxide (a base) reacts with hydrochloric acid. After the reaction is complete, a pH indicator is added to the solution. The solution turns blue, indicating that the solution is basic. What is the limiting reactant?

Which of the following is an example of heat transfer by conduction? A. The upstairs of a house being warmer than the downstairs B. Burning your finger on a hot match C. The sun warming your skin D. Being warmed by a fire on a cold night

How much did John save in his 401 (k) in the 2014 tax year?

Explain why the chemical released from the injured fish may not cause in a wa why the chemical released from the injured fish may not cause in alarm response in other fish species

hat historical figure was responsible for developing the system for categorizing living things that is still used today? A) Sir Isaac Newton B) Carolus Linnaeus C) Benjamin Franklin D) Galileo

Suppose you have made the following hypothesis: Sharks are most common near coral reefs, because there are more fish there to eat. Suppose you observed 10 sharks on a coral reef in the Caribbean, and 15 sharks in the open ocean 50 miles away.