What should you use to heat a substance in a beaker?
100
Matter cannot be created or destroyed
What is the core property of matter?
100
The Visible Light Spectrum
What spectrum of light can we, as humans, see?
100
Nitrogen (N)
What element has the atomic mass of 14.007?
100
A covalent bond
What is it called when two non-metals bond?
200
Tongs and Gloves
What should you use to handle a hot beaker or substance? (Two answers)
200
1. A physical change is reversible, a chemical change is not
2.A physical change is a change in which no new substance is formed; a chemical change results in the formation of one or more new substances
What is the difference between Chemical and Physical changes?
200
Hertz (Hz)
What is frequency measured in?
200
each of or two or ore forms of one element
What is an Isotope?
200
Rubidium Bromide
What is the proper name for RbBr
300
657.54 cm
What is 6575.4 mm to cm?
300
*
* C *
*
What is the Lewis Dot structure of Carbon (C)
300
Decreases
When wavelength increases, frequency ________.
300
Ammonium Sulfate
What is the Proper name for (NH4)2(SO4)?
300
** **
0 =0
** **
what is the lewis dot stucture for O2?
400
23000mm
What is 2.3 Dm to mm?
400
C:Ba
What has a larger atomic radius?:
A:F
B:Ag
C:Ba
E:He
400
An apparatus for producing and recording spectra for examination
What is a spectroscope?
400
Halogens
DAILY DOUBLE///
What group is At in?
400
Hydro-Chloric Acid
What is HCl?
500
9.2171 mi/min
What is 890.01 km/hr to mi/min?
500
P:11
E:10
How many Protons and electrons are in Na+1?
500
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state
What is an emission spectra?
500
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties.