Create and Destroy (Chemistry) Flashcards
Describe the structure of atoms in terms of the nucleus, protons, neutrons and electrons
- Protons and Neutrons are in the nucleus
- While electrons are on the outer shell
Name 3 compounds that contain only non-metals from their formulas
dihydrogen monoxide, carbon dioxide and Sulfur dioxide or Nitrogen trifluorine
Name 3 compounds that contain metals and non-metals from their formulas
Lithium phosphide, calcium chloride, potassium bromide or barium fluoride
Name 3 common acids
Absorbic acid- Vitamin C
Sulfuric Acid- Battery Acid
Ethanoic acid- Vinegar
Identify the 8 properties of acids
- Is corrosive and has a sour taste
- reacts with some metals, release hydrogen gas, leaves a salt behind
- neutralised by bases producing water and salt and conducts electricity
- turns litmus paper red
Name 3 three common bases
Ammonium Hydroxide- Cleaning Ammonia/ products
Sodium Hydrogen carbonate- Baking soda
Sodium carbonate- Washing powder
Identify the 7 properties of bases
- Litmus paper turns blue
- Are caustic, and bitter taste
- Soapy, slimy feel
- Conduct electricity and neutralised by acids, producing water and a salt
Define acid-base indicators
Indicators are substantances that change colour in acidic and basic solutions. Eg. litmus, red cabbage or a universal indicator
Define pH
The measure of the concentration of hydrogen ions in a solution
Name 3 everyday substances that are neutral, acidic or basic
Acidic- Sulfuric acid- Battery acid
Neutral- Water
Basic- Sodium carbonate- Washing powder
Identify the 6 signs of a chemical reaction
Fizzing or bubbling, heat released or heat absorbed, permanent colour change, solid disappears or a solid is produced
Describe the law of conservation of mass in a chemical reaction
During a chemical reaction matter can be neither created nor detstroyed
