Chemistry Semester Exam

Front

During a science class, Harper asked the teacher about the smallest particles into which an element may be broken down without changing the identity of the element.

Back

atoms

Front

What is the number of protons in an atom?

Back

atomic number

Front

What isotope is the atomic mass unit defined relative to?

Back

carbon-12

Tags

NGSS.HS-PS1-8

Front

Which step of the scientific method involves thinking about nature to develop an idea about how plants grow towards light?

Back

hypothesizing

Front

How many atoms are in exactly one mole of atoms?

Back

6.022 × 10²³

Front

Temperature that equals 0 K?

Back

-273.15°C

Front

In the solid state of matter, particles have enough energy to move freely but not enough energy to overcome their attraction for each other.

Back

liquid

Tags

NGSS.HS-PS3-4

Front

Mia is conducting an experiment to measure the boiling point of water. She wants to know how closely her measured value matches the actual boiling point of water. This is known as

Back

accuracy.

Front

What is the dense central portion of an atom called?

Back

nucleus

Tags

NGSS.HS-PS1-8

Front

How does Avogadro’s number connect the microscopic world of atoms to the macroscopic world?

Back

true