| Questions | Answer | % Correct |
|---|---|---|
| Does the atomic radii increase or decrease down the period? | Decrease | 94%
|
| What block is Magnesium located in? | s block | 64%
|
| What is the ionisation energy trend across a period? | increases | 62%
|
| Describe the general trend of reactivity down group 2 | increases | 62%
|
| Describe the solubility trend of hydroxide ions down group 2. | Increases | 62%
|
| What is the colour of Chlorine? | Green | 61%
|
| Down group 2, does the melting points decrease or increase? | Decreases | 50%
|
| Describe the electronegativity trend down group 7. | Decreases | 50%
|
| Which is a better reducing agent: chloride or iodide? | Iodide | 48%
|
| Halegons are good ______ agents. | Oxidising | 48%
|
| Halide ions are good _______ agents. | Reducing | 48%
|
| Magnesium helps to extract what from ores? | Titanium | 13%
|
| What is barium sulfate used in? | X rays | 11%
|
| What do you use to test for carbonates? | HCl | 10%
|
| What does Chlorine gas and Sodium hydroxide react to make? | Bleach | 8%
|
| Chlorate ions are good at what? | Killing bacteria | 6%
|
| Before adding Silver nitrate, what does adding nitric acid do? | Removes impurities | 4%
|
| What is Mg(OH)2 used for? | Neutralises stomach acid | 3%
|
| What does HCl and BaCl2 test for? | Sulfate ions | 3%
|
| What does the red litmus paper and NaOH test for? | Ammonium ions | 2%
|
| Why does the melting point decrease down group 2? | Metallic structure | 2%
|
| Disproportation occurs when what two substances react? | Water and Chlorine | 2%
|