Pure substances and Mixtures

Front

Instant coffee is made by dissolving a powder in hot water. Instant coffee is a ___________________.

Back

mixture

Front

Baking soda is the common name for sodium bicarbonate, or NaHCO3. It can be produced through chemical reactions involving carbon dioxide and sodium hydroxide. Classify baking soda: pure substance or mixture?

Back

pure substance

Front

Cake batter is a substance that may contain flour, eggs and sugars mixed by hand or with an electric mixer. Cake batter is a ___________________ .

Back

mixture

Front

Chalk is a mineral found in rocks. It contains carbon, oxygen and calcium atoms. Chalk is a ___________________.

Back

compound

Front

Nickel has the chemical symbol Ni and atomic number 28. It is a silvery-white metal and cannot be broken down physically or chemically into a more simple substance. Nickel is a ___________________ .

Back

element

Front

Granite is an igneous rock that contains the minerals quartz, feldspar, mica and others. The exact composition will vary from sample to sample. Granite is a(n) _______ .

Back

heterogeneous mixture

Front

What two types of matter are pure substances? Options: elements and solutions, compounds and mixtures, elements and compounds, mixtures and solutions

Back

elements and compounds

Front

Mixtures that have the same composition throughout are...
Options: heterogeneous, homogeneous, elements, pure substances

Back

homogeneous

Front

Why is carbon dioxide considered a compound?

Back

made of two different elements.

Front

Elements are broadly classified as metals, nonmetals, and _________________.

Back

metalloids