Chemistry #2

Match the following

• Chemical reaction

• A substance that increases the rate of a chemical reaction without undergoing any permanent change itself.

• Solvent

• The process in which one or more substances (reactants) are converted into different substances (products) by the breaking and forming of chemical bonds.

• Molecule

• A substance formed when two or more different elements are chemically bonded together in fixed proportions.

• Catalyst

• A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

• Compound

• A substance capable of dissolving other substances to form a solution. Typically, it is the component of a solution present in the greatest amount.

A ​ (a)   is a homogeneous mixture composed of two or more substances (​ (b)   ) uniformly dispersed in a ​ (c)   .

• Solution
• solutes
• solvent

The amount of solute present in a given quantity of solvent or solution, often expressed in terms of moles per liter (molarity) or mass per volume.

• Concentration

• Reactant

• Product

• Synthesis

A substance that undergoes change in a chemical reaction and is consumed to form products.

• Concentration

• Reactant

• Product

• Synthesis

A substance formed as a result of a chemical reaction between reactants.

• Concentration

• Reactant

• Product

• Synthesis

A chemical reaction in which two or more substances combine to form a more complex product.

• Concentration

• Reactant

• Product

• Synthesis

Match the following

• Flask

• A cylindrical glass container with a flat bottom, often with a lip for pouring, used for holding, mixing, and heating liquids.

• Test tube

• A long, graduated glass tube with a stopcock at the bottom, used for delivering variable and precise volumes of liquid.

• Pipette

• A narrow, cylindrical tube with a rounded bottom, used for holding small amounts of liquid or conducting small-scale chemical reactions.

• Beaker

• A slender, calibrated tube used to accurately measure and transfer small volumes of liquid.

• Burette

• A glass container with a narrow neck and a wide, flat bottom, typically used for holding and mixing liquids.

What motivated you to pursue a career in chemistry?

1. Can you discuss any relevant laboratory experiences or research projects you have been involved in during your studies?

1. What are your strengths and weaknesses as a chemistry graduate?