The arrow in a chemical equation meaning 'produces.'

Water molecules stick to other water molecules.

Water molecules stick to other surfaces.

The 'skin' on the surface of water caused by cohesion.

Water moves upward in thin tubes or plant stems because of adhesion and cohesion.

A small amount of liquid held together by surface tension.

The movement of water through living things.

The smallest unit of an element.

One or two letters that represent an element.

Shows which elements and how many atoms are in a compound.

The big number in front of a chemical formula that shows how many molecules.

The small number written after a chemical symbol that shows how many atoms.

Used in formulas to group atoms, with a subscript showing how many groups.

A substance that produces hydrogen ions (H⁺) in water; pH less than 7; sour taste.

A substance that produces hydroxide ions (OH⁻) in water; pH greater than 7; bitter taste, slippery feel.

A substance with a pH of 7 (pure water).

A substance that changes color in the presence of an acid or base.

A type of indicator that turns red in acids and blue in bases.

Measures how acidic or basic a substance is (0–14).

Another word for a base that dissolves in water.

Describes acids or bases that can eat away materials.

Anything that has mass and takes up space.

A characteristic that can be observed without changing the substance (ex: color, state of matter).

A change in appearance or state of matter, but no new substance forms.

Describes how a substance can change into a new substance.

A change that forms a new substance with new properties.

When one substance spreads evenly into another (like salt in water).

When matter changes state (solid, liquid, gas).

A pure substance made of only one type of atom.

A pure substance made of two or more elements chemically combined.

A physical combination of substances.

Looks the same throughout (ex: salt water).

Heterogeneous mixture

Not uniform, you can see different parts (ex: salad).

A homogeneous mixture where one substance is dissolved in another.

The substance that does the dissolving.

Two or more atoms bonded together.

Matter that has a fixed composition (element or compound).

Chart where all elements are organized.

Elements that are shiny, conduct heat and electricity, malleable, ductile.

Elements that are dull, brittle, poor conductors.

Elements with properties of both metals and nonmetals.

Elements found at the bottom rows of the periodic table.

Science Concepts Flashcards Flashcards

Student preview

57 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Chemical equation

Back

A way of writing a chemical reaction using symbols and formulas.

2.

FLASHCARD QUESTION

Front

Chemical reaction

Back

A process where substances change into new substances with different properties.

3.

FLASHCARD QUESTION

Front

Closed system

Back

Matter cannot enter or leave.

4.

FLASHCARD QUESTION

Front

Open system

Back

Matter can enter or leave.

5.

FLASHCARD QUESTION

Front

Law of Conservation of Mass

Back

Matter is not created or destroyed, only rearranged.

6.

FLASHCARD QUESTION

Front

Reactant

Back

The starting substances in a chemical reaction (left side of equation).

7.

FLASHCARD QUESTION

Front

Product

Back

The new substances made in a chemical reaction (right side of equation).

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