Chemistry Mid Term

What is an SDS (Safety Data Sheet)?

• A document detailing properties and hazards of a chemical

• A summary of lab experiments

• A type of lab equipment

• A regulatory compliance form

Tags

NGSS.HS-ETS1-3

A volatile chemical is characterized by:

• A high boiling point

• A low evaporation rate

• Readily evaporating at room temperature

• Reactivity with water

What is a corrosive chemical?

• A substance that is non-toxic

• A substance that can damage living tissue upon contact

• A liquid that evaporates quickly

• A stable compound at room temperature

SI Units refer to:

• A local system of measurement

• A system that only includes temperature measurements

• Units used exclusively in the U.S.

• A standardized system used globally in science

The metric system is based on:

• Fractions and percentages

• Decimal units such as meters, liters, and grams

• Roman numerals

• Non-standardized measurements

A beaker is:

• A container used for mixing and heating liquids

• A device used to measure gas pressure

• A tool for measuring solid weights

• A microscope accessory

A graduated cylinder is used to:

• Mix chemicals

• Heat liquids

• Measure the volume of liquids accurately

• Transfer small amounts of liquid

What is the shape of an Erlenmeyer flask?

• Cylindrical

• Conical with a flat base

• Round bottom with no neck

• Square with a wide opening

An electronic balance is used for:

• Measuring temperature

• Determining the volume of liquids

• Measuring the mass of an object with precision

• Observing chemical reactions

Quantitative data is:

• Non-numerical information

• Measured and expressed numerically

• Based on personal observations

• Descriptive data only

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

NGSS.MS-PS3-4