A level Chemistry
Cards (508)
- What are the discrete energy levels around the nucleus called?
- What does the nucleus of an atom contain?
- What is the relative charge of a neutron?
- What is the relative mass of an electron?
- How is mass number (A) calculated?
- What does the atomic number (Z) represent?
- What are ions?
- What distinguishes isotopes of the same element?
- What is the charge of a cation?
- How do isotopes of the same element behave chemically?
- What is relative atomic mass (A<sub>r</sub>)?
- What is relative isotopic mass?
- Does relative isotopic mass have units?
- What is relative molecular mass (M<sub>r</sub>)?
- How do you calculate the relative formula mass of Ca(NO₃)₂?
- What does mass spectrometry measure?
- What does the mass/charge ratio in mass spectrometry represent?
- How do you calculate the relative atomic mass of chlorine from its isotopes?
- What is the ionic charge of common ions based on periodic table position?
- What are polyatomic ions?
- What is the formula for carbonate?
- What is the formula for nitrate?
- What is the formula for sulfate?
- What must be conserved when writing equations?
- What is the ionic equation for KOH and HCl?
- What are the state symbols used in equations?
- Write the balanced equation for sulfuric acid and sodium hydroxide.
- What is the Avogadro constant (N<sub>A</sub>)?
- How many particles are in one mole?
- What is molar mass?
- How do you calculate moles from mass and molar mass?
- Calculate the number of moles in 70 g of NaCl.
- What does the empirical formula represent?
- How is the molecular formula related to the empirical formula?
- How do you determine the empirical formula from mass of elements?
- What is the empirical formula of phosphorous oxide with 6.2 g P and 8 g O?
- What is water of crystallisation?
- How is water of crystallisation represented in a formula?
- What is a hydrated substance?
- What is an anhydrous compound?