Pure Substances & Mixtures , Homogeneous & Heterogeneous Mix

Which picture represents the pure elements?

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Tags

NGSS.MS-PS1-1

It is a pure substance that cannot be broken down into any simpler substance.

• SUBSTANCE

• COMPOUNDS

• ELEMENTS

• MIXTURE

It is a combination of two or more substances that are blended together without forming new substance.

• ELEMENTS

• COMPOUND

• MIXTURE

• SUBSTANCE

What are the 3 classifications of Elements?

• METALS, NON-METALS, METALLIC

• METALS, NON-METALS, METALLOIDS

• METALS, NON-METALS, METAL GAS

• None of the above

Natural gas is mainly methane (CH₄). What two elements are present in Methane?

• Magnesium & Oxygen

• Magnesium & Hydrogen

• Carbon & Oxygen

• Carbon & Hydrogen

What two elements make up common table salt?

• Sodium and Oxygen

• Sodium and Hydrogen

• Sodium and Chlorine

• Sodium and Magnesium

A form of matter that has fixed composition.

• Elements

• Pure Substance

• Compound

• Mixture

Mixture that does not have uniform composition.

• Heterogeneous mixture

• Homogeneous mixture

• Mixture

• None of the above

What classification of mixture is in the picture above?

• Heterogeneous Mixture

• Homogeneous Mixture

• Hoterogeneous Mixture

• All of the above

Which of the following has the symbol "C"?

• Chlorine

• Carbon

• Copper

• Calcium