4218133
Description
Flashcards by Ella Ivanovici, updated more than 1 year ago
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Created by Ella Ivanovici
over 8 years ago
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| Question | Answer |
| name characteristics of acids | they taste sour they turn litmus paper red they have a pH less than 7 |
| name characteristics of bases | they have a pH more than 7 they have a bitter taste they have a slippery feel Turns litmus paper blue |
| is lemon acid or base | acid |
| is baking soda acid or base | base |
| is window cleaner acid or base | base |
| is coke acid or base | acid |
| what is another word for base | alkaline |
| what kind of substance has a pH of 7 | any neutral substance |
| what are three indicators we use to find out is something is acid or alkali | 1. Litmus 2. Red cabbage 3. Cranberries |
| what is a natural indicator | a flower called hydrangea |
| define matter | matter is everything that takes up space and has mass |
| what are the parts that make up the structure of an atom | the atom is made up of protons, neutrons and electrons |
| give the mass, charge and location of a proton | 1 AMU (atomic mass unit) positive charge inside the nucleus |
| give the mass, charge and location of a electron | 0.0005 AMU (or 1 rounded) negative charge outside the nucleus |
| give the mass, charge and location of a neutron | 1 AMU neutral charge inside the nucleus |
| what is the atomic number equal to | atomic number is equal to the number of protons in the atom. |
| name the different parts of an element | |
| how do you find the atomic mass | Atomic number (protons) + number of neutrons |
| how do you find the number of electrons | in a neutral atom the number of protons (atomic number) is equal the number of electrons |
| draw theBohr-Ruthuford diagram for lithium | |
| draw the Bohr-Ruthuford diagram for sodium | |
| draw the Bohr-Ruthuford diagram for magnesium | |
| on the periodic table what are the groups and what are the periods | periods are the rows groups are the columns |
| identify on your periodic table where the metals, non-metals and metalloids are | |
| identify where the alkali metals are on your periodic table | |
| identify where the alkaline earth metals are on your periodic table | |
| identify where the halogens are on your periodic table | |
| identify where the noble gases are on your periodic table | |
| what is the difference between an element and a molecule | A molecule is formed when two or more atoms where an element is formed of just one |
| what is a non-characterisic property | Properties that cannot be used to identify a specific substance Properties shared by numerous substances, or are not consistent for a particular pure substance Examples: colour, mass, volume |
| what is a characteristic property | Properties that can be used to identify a specific substance They are consistent for all samples of a particular pure substance Examples: density, boiling point, melting point |
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