Significant figures in 0.0470
What is 3?
NaCl
What is the chemical formula for Sodium chloride?
As you move left to right across a period, this property generally increases.
What is Electronegativity?
Melting ice is an example of this type of change
What is a physical change?
The three states of matter
What are Solid, Liquid, and Gas?
48.0 divided by 3.2 with correct significant figures
What is 15?
N2O5
What is the chemical formula for Dinitrogen pentoxide?
What is Na (sodium)?
Burning wood is an example of this type of change
What is a chemical change?
One type of matter consists of one type of atom, while another is two or more elements chemically combined.
What is the difference between an element and a compound?
The conversion of 8.75 kilometers to millimeters
What is 8,750,000 mm?
HNO3
What is the chemical formula for Nitric acid?
This element in period 2 breaks the expected trend by having a lower ionization energy than the element to its left.
What is Oxygen?
A substance that dissolves in water recovered by evaporation experiences a _______
What is a physical change?
Two or more substances physically combined
What is a mixture?
12.011 + 0.34 + 9.1 with the correct amount of significant figures
What is 21.5?
Fe2(SO4)3
What is the chemical formula for Iron(III) sulfate?
The arrangement of Ca, C, F, Al in order of increasing electronegativity
What is Ca < Al < C < F?
Common signs of a chemical change (list at least 2)
What are color changes, oxidization, release of odor/light, and the formation of a precipitate or gas?
The property that describes how much mass is in a given volume
What is density?
What is 1.000 × 10³?
Ca(H2PO4)2
What is the chemical formula for Calcium dihydrogen phosphate?
This element has the highest electronegativity despite an ambiguous electron affinity
Electrolysis splitting water into H₂ and O₂ is _______
What is a chemical change?
This common substance is considered a mixture because it contains gases like N₂, O₂, Ar, and CO₂ in variable proportions.
What is air?