Chemistry Flashcards
Is PH7+ acid or alkali?
Alkali.
Who invented the modern day periodic table?
Dmitri Mendeleev.
What colour does the universal indicator turn when it interacts with an alkali?
Blue/Purple.
What colour does the universal indicator turn when it interacts with an acid?
Orange/Red/Yellow
What salt does hydrochloric acid form?
Chloride.
What acid does sulphate come from?
Sulphuric acid.
What salt does nitric acid form?
Nitrate.
What is an exothermic reaction?
A reaction that gives off heat.
What is an endothermic reaction?
A reaction that absorbs heat.
What is the most reactive metal in the reactivity series?
Potassium.
What is the least reactive metal in the reactivity series?
Platinum.
How is igneous rock formed?
Igneous rock forms when magma solidifies.
How are metamorphic rocks formed?
Metamorphic rocks are formed when pre-existing rock is exposed to high heat or high pressure or a combination of the two.
How are sedimentary rocks formed?
Sedimentary rocks are formed from the broken remains of other rocks that become joined together.
What are the three rock groups?
- Sedimentary
- Metamorphic
- Igneous
Name three pollutants
- Nitrogen dioxide (NO2)
- Carbon Monoxide (CO)
- Sulfur dioxide (SO2)
Name 4 ways of separating mixtures
- Distillation
- Filtration
- Evaporation
- Chromatography
What is diffusion?
Diffusion is the movement of particles from an area of high pressure to an area of low pressure.
What is a solvent?
A solvent is a liquid that has a solute added to it to make a solution.
What is a solute?
A solute is something that is added to a solvent to make a solution.
