Subjects / Chemistry
Chemistry
BGCSE Chemistry: particles, bonding, reactions and the chemistry of everyday materials.
148 questions
Most triedMost missedNewest- Changing directly from a solid to a gas is called…Multiple choiceForm 4 · States of matter and particlesNot tried yet
- Why does a gas spread out to fill a room?Multiple choiceForm 4 · States of matter and particlesNot tried yet
- Which method separates the dyes in ink?Multiple choiceForm 4 · Separation and purityNot tried yet
- Which method gets pure water from sea water?Multiple choiceForm 4 · Separation and purityNot tried yet
- A pure substance melts…Multiple choiceForm 4 · Separation and purityNot tried yet
- Which particle has a negative charge?Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- An atom has 11 protons and 12 neutrons. What is its mass number?Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- Atoms of the same element with different numbers of neutrons are…Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- What is the electronic configuration of magnesium (12 electrons)?Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- Elements in the same group of the Periodic Table have the same…Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- Group 0 (8) elements are unreactive because…Multiple choiceForm 4 · Atomic structure and the Periodic TableNot tried yet
- Ionic bonding happens between…Multiple choiceForm 4 · Bonding and structureNot tried yet
- Covalent bonds are formed by…Multiple choiceForm 4 · Bonding and structureNot tried yet
- Why does sodium chloride conduct electricity when molten?Multiple choiceForm 4 · Bonding and structureNot tried yet
- Which substance has a giant covalent structure?Multiple choiceForm 4 · Bonding and structureNot tried yet
- What is the formula of calcium chloride?Multiple choiceForm 4 · Formulae, equations and molesNot tried yet
- What is the relative formula mass of CO₂? (C = 12, O = 16)Multiple choiceForm 4 · Formulae, equations and molesNot tried yet
- Balance: __H₂ + O₂ → __H₂OMultiple choiceForm 4 · Formulae, equations and molesNot tried yet
- How many moles are in 36 g of water? (H = 1, O = 16)Multiple choiceBGCSE · Formulae, equations and molesNot tried yet
- What volume does 1 mole of any gas occupy at room temperature and pressure?Multiple choiceBGCSE · Formulae, equations and molesNot tried yet
- What is the concentration of 0.5 mol of NaOH dissolved in 250 cm³ of solution?Multiple choiceBGCSE · Formulae, equations and molesNot tried yet
- Acids produce which ions in water?Multiple choiceBGCSE · Acids, bases and saltsNot tried yet
- Which gas is given off when a metal reacts with an acid?Multiple choiceBGCSE · Acids, bases and saltsNot tried yet
- Which gas is given off when an acid reacts with a carbonate?Multiple choiceBGCSE · Acids, bases and saltsNot tried yet
- Farmers add lime to soil to…Multiple choiceBGCSE · Acids, bases and saltsNot tried yet
- Which salt is formed by sulfuric acid and copper(II) oxide?Multiple choiceBGCSE · Acids, bases and saltsNot tried yet
- Which changes speed up a reaction?Multiple choiceBGCSE · Rates of reactionNot tried yet
- A catalyst…Multiple choiceBGCSE · Rates of reactionNot tried yet
- Oxidation is…Multiple choiceBGCSE · Redox and electrolysisNot tried yet
- In electrolysis, positive ions move to the…Multiple choiceBGCSE · Redox and electrolysisNot tried yet
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