Q2 QSE Review

Front

What does it mean for a chemical reaction to be balanced?

Back

A chemical reaction is balanced when the number of atoms of each element is equal on both sides of the equation.

Front

Why does Florida receive a lot of rain?

Back

Nearby warm ocean waters cause high levels of water vapor in the air.

Front

What season is it in the Southern Hemisphere when the Northern Hemisphere is pointing towards the sun?

Back

Winter.

Front

Which of the following chemical equations is balanced? CH₄ + O₂ → CO₂ + 2H₂O or 4Al + 3O₂ → 2Al₂O₃?

Back

4Al + 3O₂ → 2Al₂O₃.

Front

What happens to surface temperature and star brightness as we move to the left on the diagram?

Back

Surface temperature increases and stars become brighter and bluer.

Front

Define 'precipitation'.

Back

Precipitation is any form of water, liquid or solid, that falls from clouds and reaches the ground.

Front

What is the relationship between elevation and precipitation?

Back

Generally, higher elevations receive more precipitation due to orographic lift.

Front

What is the significance of the equator in relation to climate?

Back

The equator receives more direct sunlight year-round, leading to warmer temperatures and more precipitation.

Front

Explain the concept of 'mass conservation' in chemical reactions.

Back

Mass conservation states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is a 'chemical equation'?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.