Flashcards
Chemistry - Atoms and Elements - I
Cards in this deck (35)
- 1What is all matter made up of?atoms
- 2what are atoms?atoms are tiny tiny particles.
- 3can you see particles with the naked eye?No
only through a microscope. - 4What is an element? Can you name 5 (trick) "O I CAN"A substance containing only one type of atom.
Quite a lot of every day substances are elements
- 5How many different elements are there?over a hundred
- 6What 3 things do all types of atoms have?a symbol (usually of 1 or 2 letter)
atomic mass
atomic number - 7in a chemical reaction what happens to the atoms?atoms are not destroyed but passed on.
- 8after a chemical reaction dose the atomic mass change?no because particles are not lost.
- 9when the reactant is turned into the product what dose the word equation always have?a gas
- 10what always happens during a chemical reaction?bonds are always made or broken.
- 11if you heated magnesium and oxygen what would the word equation be?magnesium + Oxygen --------> Magnesium Oxide
- 12if you heated magnesium and oxygen what would the chemical name be for the product?Magnesium Oxide.
- 13when the element are all clumped together what state is it in?it would be a solid.
- 14what are the three stages of balancing a equation?1.find the element the is stoping the equation from balancing.
2.if there isn't enough on one side add some more.
3. arrange the amount of atoms so it is the same on both sides of the equation. - 15who is Dalton?he was the first scientist to explain things about atoms.
- 16what is a element?a substance that has only one type of atom.
- 17name two properties that copper has?soft bendy metal
conducts electricity. - 18what properties does oxygen have.it is a colourless gas
- 19when two or more atoms join together what is made?a molecule
- 20what is made when two or more elements join together?compound
- 21what are formed when atoms from different element join together like co2?compound is made
- 22what dose a chemical reaction involve?two elements seperating or combining
- 23What are compounds made fromatoms of different elements which have been chemically joined
- 24What do atoms do in a chemical reaction?Rearrange themselves
- 25___ get ___ and ___ in the reaction, as atoms ___ themselves in going from the ___ to the ___. But the atoms themselves are not ___. altered products made reactants rearrange bonds brokenBonds, broken, made, rearrange, reactants, products, altered
- 26What is the below an example of?Atoms rearranging themselves in a chemical reaction
- 27In a chemical reaction ___ ___ is ___ or ___ when the ___ turn into the ___ lost, reactants, no mass, gained, productsIn a chemical reaction NO MASS is LOST or GAINED when the REACTANTS turn into the PRODUCTS
- 28Some chemical reactions involve colour changes, heating up, stinky emissions and even explosions, but there's one thing that always stays the same, what is it?The total MASS before and after the reaction
- 29When ___ reacts with blue ___ ___ solution, the solution goes ___ copper coats the magnesium strip and the temperature ___. But the mass stays the same. colourless, copper, rises, magnesium, sulphate,When magnesium reacts with blue copper sulphate solution, the solution goes colourless, copper coats the magnesium strip and the temperature rises. But the mass stays the same.
- 30If two or more atoms join together by sharing their electrons the atoms form what?A molecule
- 31In an element are all atoms the same or different?the same
- 32What does every atom have in their chemical symbol?a capital letter
- 33What do compounds all have2 or more different element chemically combined
- 34When you add different elements together, do they loos some propertiesyes
- 35What are ElementsSubstances made up of only 1 atom
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- Atoms, formulae and equations
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- Seth Bailey
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