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Katie Butler Final

final exam

QuestionAnswer
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
Created by: CHSwoodwind2011