Changing Materials Flashcards
What’s being dissolved?
Solute
What is another name for a grinding bowl?
Mortar
This type of water has been purified?
Distilled
Will not dissolve?
Insoluble
Separation technique involving evaporation followed by condensation?
Distillation
What’s collected in the filter paper?
Residue
Increases when more solute is dissolved in a solvent?
Concentration
Decreases the pH of an acid towards 7?
Diluting
Liquid collected during filtration?
Filtrate
A chemical which speeds up a chemical reaction but is not used?
Catalyst
Substance doing the dissolving?
Solvent
The kind of change which does not involve the formation of a new substance?
Physical
Gas which burns with a pop?
Hydrogen
Will dissolve?
Soluble
This solution is “full up” with solute?
Saturated
What happens to the solubility of Ammonia as the temperature increases?
The solubility increases
Gases behave differently compared with solid solutes. What is different about the line graph (solubility curve) for most solids dissolving in water?
The line graph slopes upwards
Name three ways in which a reaction could be speeded up?
- Increasing the temperature
- Catalyst
- Cutting up solids into smaller pieces
Write a word equation for the reaction?
Nitric Acid + Sodium Hydroxide ▶️ Sodium Nitrate + Water
Sodium Hydroxide is the opposite of an acid. What type of chemical is it?
Alkali
What pH must Nitric Acid have?
Less than 7
Name the type of reaction in the question?
Neutralisation
What is always formed when a chemical reaction takes place?
A new substance
If enough pure water is added to Nitric Acid, what pH number will the
liquid have?
pH 7
What could you use to check the pH number?
Universal Indicator or pH paper
Write the word equation for the reaction if Nitric Acid were to be reacted with Magnesium Hydroxide instead?
Nitric Acid + Magnesium Hydroxide ▶️ Magnesium Nitrate
Acid rain reacts with marble statues, damaging them. Give one other effect of acid rain?
Speeds up corrosion of metal
