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16 Cards in this Set
- Front
- Back
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Name three things that can effect the rate of a reaction. |
Particle size, Concentration, Temperature |
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What is the formula for average rate of reaction. |
rate = change in (volume, heat, concentration ect.) / time taken |
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What charge and mass does a proton have. |
Positive and 1 amu |
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What charge and mass does a neutron have. |
No charge and a mass of 1 amu |
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What charge and mass does an electron have. |
Negative charge and mass of 1 amu |
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What is the mass number of an atom. |
Number of protons + number of neutrons |
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What is the atomic number. |
Number of protons or electrons in the atom |
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What is an isotope. |
Atoms of the same element with a different number of neutrons |
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What is the relative atomic mass. |
Average mass of all the isotopes in a natural sample |
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Name the two types of bonds (that occur in non-metals). |
Covalent and Ionic |
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What elements are part of a covalent bond. |
Two or more non-metals |
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What elements are part of an ionic bond. |
A metal bonded to a non-metal |
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How are ionic bonds made. |
The metal atom loses electron(s) and the non-metal gains the electron(s). They become charged and are attracted to each other so a bond is created, they are held together in a crystal lattice structure |
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What are some properties of ionic compounds |
High melting and boiling points |
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How are covalent bonds made. |
The unpaired electron(s) in the atoms are shared between the atoms. Giving both atoms a stable outer ring of electrons, like their nearest noble gas. They are |
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What are covalent networks. |
Covalently bonded molecules that have high melting and boiling points. Eg. Diamond and Sand |
