Element, Compound, or Mixture?
Nitrogen is an example of a
What is an element?
The solution turns from green to red. This is an example of a
What is a physical change?
The formula for density has three components. What are they (Hint: think of the triangle)
What are density, mass, and volume?
The 4 types of Zeros
What are captive zeros, trailing zeros with and without a decimal, and what are leading zeros?
The three subatomic particles and their charge
What are protons (+), neutrons (0), and electrons (-)?
Copper is an example of a
What is an element?
The solution has a high likelihood of catching on fire; in other words, it is flammable. This is an example of what type of property?
What is a chemical property?
Density changes with the amount of the solution in the container (T or F)
What is false?
This is an example of what type of zero
5000
What is a trailing zero without a decimal?
The definition of an ion
What is an atom or atoms that have a charge because they lost/gained one or more electrons?
Baking Soda is an example of a
What is a compound?
One solution boils at 70 degrees and the other boils at 120 degrees. This is an example of what type of difference?
What is a physical difference?
Using these values, calculate the density
Mass = 45 g
Volume = 15 mL
What is 3g/mL?
This is an example of what type of zero
0.05
What is a leading zero?
The definition of a covalent bond
What is a bond in which two atoms share one or more electrons?
Gasoline is an example of a
What is a mixture?
This element is highly electronegative and likes to react with other elements. This is an example of what type of property?
What is a chemical property?
Using these values calculate the density
Mass = 32.48g
Volume = 25 mL
What is 1.30 g/mL?
This is an example of what type of zero
507
The definition of an isotope
What are atoms of the same element that differ in mass because of the number of neutrons?
Granite is an example of a
What is a mixture?
A solution's density is an example of what type of property?
What is a physical property?
Using these values calculate the volume
Density = 1.20 g/mL
Mass = 60g
What is 50 mL?
This is an example of what type of zero
7000.
What is a trailing zero with a decimal?
What are the element symbols and atomic numbers for Nitrogen, Oxygen, and Fluorine?
Nitrogen: N, 7
Oxygen: O, 8
Fluorine: F, 9