Mixtures and Solutions

Front

How can a scientist safely tell whether an unknown solution is salt in water or sugar in water?

Back

Test the electrical conductivity of the solution.

Front

If two unidentified solids of the same texture and color have different solubility in 100 grams of water at 20C, you can conclude that...

Back

They are different

Front

When a solid compound dissolves in water, ...

Back

each of its particles are surrounded by water molecules.

Front

What does it mean if a compound has a solubility of 15g in 100g of water at 0°C?

Back

15g of the compound will dissolve in 100g of water at 0°C.

Front

Table sugar and table salt are examples of...

Back

compounds

Front

Substances that cannot be broken down chemically into other substances are...
Options: elements, compounds, mixtures, solutions

Back

elements

Front

All elements are composed of extremely small particles called..

Back

atoms

Front

Which of these statements is false?
- Oxygen and copper are examples of elements.
- Elements are pure substances.
- Atoms of different elements can combine to form compounds.
- Atoms of different elements are the same.

Back

Atoms of different elements are the same.

Front

Weak tea is an example of a...

Back

dilute solution

Front

When you add so much solute that no more dissolves, you have a:
- saturated solution
- unsaturated solution
- neutralization
- suspension

Back

saturated solution