This is a substance whose smallest unit is made up of atoms of more than one element bonded together.
What is a compound?
100
In glucose, it is made up of three elements. C6H12O6, this is the chemical formula. What are the three elements?
What is Oxygen, Carbon, and Hydrogen?
100
Those alkali substances that have a pH below 7 are what?
What is bases?
100
How many atoms of Hydrogen does the compound of Hydrogen Peroxide have? H2O2
What is 2 atoms?
100
This is a characteristic that cannot be observed without altering the substance.
What is chemical property?
200
This is when two or more substances come together but don't make a new substance.
What is a mixture?
200
Which group of elements are poor conductors and are found on the right side of the periodic table?
What is non-metals?
200
What is those substances that are above a pH of 7?
What is acids?
200
What are the negatively charged particles in an atom and where are they located at?
What is electrons and electron cloud?
200
These are signs of a chemical change occurring.
What is color, odor, energy?
300
This is when two elements come together and connect with each other due to their electrons in their outer shell. Sometimes they can share their electrons or give up their electrons to connect with another element.
What is chemical bonds?
300
What is the number of protons in an element called? It is above the Element Symbol on the Periodic Table.
What is atomic number?
300
What type of ions do bases have?
What is hydroxides (OH-)?
300
What is this called when there is atoms of the same elements but different numbers of neutrons?
What is isotopes?
300
Which of the following is occurring if you heat a liquid to its boiling point?
A. condensation
B. melting
C. vaporization
D. freezing
What is vaporization?
400
What is a solution an example of?
A. element
B. heterogenous mixture
C. compound
D. homogenous mixture
What is homogenous mixture?
400
Those elements that have characteristics of metals and nonmetals?
What is metalloids?
400
What type of element do acids have more of a concentration of if they are acidic?
What is hydrogen?
400
One candle was burnt and the other candle was not. The mass of the burnt candle was lost but it combined with the gases in the air to form new substances. What does this show?
What is the conservation of mass?
400
What are some examples of physical changes?
What is shape, size, texture, phase of state like gas, liquid, or solid.
500
What would be the chemical formula for hydrochloric acid?
What is HCL?
500
How is the mass number defined as?
What is the number of protons and neutrons in an atom?
500
What are those substances at the beginning that are combined together to produce other elements and chemicals known as products?
What is reactants?
500
How do electrons behave?
What is electrons move in uncontrollable waves?
500
What is the process by which a solid can change directly into a gas? an example would be dry ice.