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Katie Butler Final
final exam
Question | Answer |
---|---|
Study of the composition and structure of materials and the changes that materials undergo best describes the science of | Chemistry |
A physical property may be investigated by | Melting ice |
Two features that distinguish matter are | Mass and volume |
The melting of candle wax is classified as a physical change because it | Produces no new substances |
The particals in a solid are | Packed close together |
The most useful source of chemical information about the elements is a | Periodic Table |
Which is NOT a property of metals? | Unreactivity |
A horizontal row of blocks in the periodic table is called a(n) | Period |
A vertical column of blocks in the periodic table is called a(n) | Group |
Elements in a group in the periodic table can be expected to have similar | Properties |
Quantitative observations are recorded using | Numerical information |
Qualitative observations are recorded using | Non-numerical information |
Standards are chosen because they | Are reproducible in another laboratory |
The SI standard unit for length and mass are | Meter and Kilogram |
The unit m3 measures | Volume |
The Symbol for the metric unit used to measure mass is | g |
The symbol that represents the measured unit for volume is | mL |
To calculate the density of an object | Divide its mass by its volume |
Five darts strike in the center of the target. Whoever threw the darts is | Both accurate and precise |
The number of significant figures in the the measurement 170.040 km is | 6 |
A nuclear particle that has about the same mass as a proton, but with no electrical charge, is called a(n) | Neutron |
Br-66 has how many protons, neutrons, and electrons | 35 protons, 35 electrons, 31 neutrons |
As the mass number of the isotopes of an element increases, the number of protons | Remains the same |
Five darts strike in the center of the target. Whoever threw the darts is | Both accurate and precise |
The number of significant figures in the the measurement 170.040 km is | 6 |
A nuclear particle that has about the same mass as a proton, but with no electrical charge, is called a(n) | Neutron |
Br-66 has how many protons, neutrons, and electrons | 35 protons, 35 electrons, 31 neutrons |
As the mass number of the isotopes of an element increases, the number of protons | Remains the same |