7th Science TCAP

Front

What is the main reason we cannot obtain nitrogen from the atmosphere by breathing?

Back

We have no mechanism to break the triple bond of nitrogen between the atoms.

Front

What is the law of conservation of mass in a chemical reaction?

Back

The total mass of reactants must equal the total mass of products.

Front

In a chemical equation, what are the substances called that undergo a reaction?

Back

Reactants.

Front

What organelle is responsible for producing ATP from glucose and oxygen?

Back

Mitochondria.

Front

Where are the heaviest elements located on the periodic table?

Back

At the bottom of a group.

Front

What is the process by which plants convert sunlight into chemical energy?

Back

Photosynthesis.

Front

What is the chemical formula for glucose?

Back

C6H12O6.

Front

What is the primary function of the chloroplast?

Back

To conduct photosynthesis.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.