The gold foil experiment showed that atoms are mostly:

A cation forms when an atom:

Which is an exact number?

The SI unit of mass is the __________

Which are chemical properties?

Accuracy refers to how close a value is to the __________ value.

Density equals mass divided by __________.

Imagine you are selected to take part in a study, and the researcher asks you to track and report the times of day in which you study, work, relax, interact with family, and interact with friends. What kind of research method would this be?

When Julio and his family moved to New York City from the Dominican Republic, he went to an English-speaking school. However, he continued to speak Spanish at home. This practice is an example of

Which of the following is true about the differing ways in which parents treat their sons and daughters?