Q2 BMA Exam 8th Grade 2024-2025

Front

What is produced alongside water in a neutralization reaction?

Back

A salt.

Front

Why is an element considered a pure substance?

Back

An element contains only one type of atom.

Front

What does the Law of Conservation of Mass state?

Back

Mass can neither be created nor destroyed.

Tags

NGSS.MS-PS1-5

Front

In which types of changes does the Law of Conservation of Mass apply?

Back

In both chemical and physical changes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Front

Which subatomic particle has a negative charge?

Back

Electron.

Front

How does temperature affect chemical reactions?

Back

Raising the temperature generally increases the reaction rate.

Tags

NGSS.HS-PS1-5

Front

What is a neutralization reaction?

Back

A reaction between an acid and a base that produces water and a salt.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.