Identify the Element
This element has the chemical symbol O and makes up about 21% of Earth's atmosphere
What is Oxygen?
The number of Hydrogen atoms in H2O.
What is 2?
The classification of substance with a pH of 2
What is an acid?
More acidic.
The more reactive metal between magnesium and copper
What is magnesium?
This element has the symbol Na and is a highly reactive metal found in table salt.
What is Sodium?
The number of Oxygen atoms in CO2
What is 2?
The classification of a substance with a pH of 12
What is a base?
pH changes from 10 to 7. Describe the change.
The solution has become more basic.
The gas commonly produced when a metal reacts with an acid
What is Hydrogen gas (H2)?
This element has the symbol Fe and is commonly used to make steel.
What is Iron?
The number of Carbon atoms in CaCO3
What is 1?
The classification of a substance with a pH of exactly 7
What is neutral?
Describe the direction (increase/decrease) pH will change when an acid is diluted with water.
ANSWER TRUE OR FALSE.
A more reactive metal can displace a less reactive metal.
TRUE
This element has the atomic number 17 and is a reactive non-metal with the symbol Cl.
What is Chlorine?
The number of Oxygen atoms in Al2(SO4)3
What is 12?
Could be described as bitter tasting, slippery to the touch, and sometimes corrosive.
What are bases?
A solution has a pH of 2. A base is slowly added to it. What general direction will the pH move (increase/decrease).
The pH will increase towards 7.
The least reactive metal between gold and zinc
What is gold?
This element has the symbol Ca and is important for strong bones and teeth
What is Calcium?
The number of each type of atom in C6H12O6
What is Carbon:6; Hydrogen: 12; Oxygen: 6.
The name of ion (charged particle) associated with acids
What are Hydrogen ions (H+)?
[Would also accept Hydronium ion H3O+]
A solution changes from pH 2 to pH 4. Describe the change in hydrogen ion concentration as:
x10 less concentration
x100 less concentration
x1000 less concentration
x100 less concentration of hydrogen ions.
The products of a reaction where a piece of magnesium (Mg) is placed into hydrochloric acid (HCl).
What is magnesium chloride (MgCl) and Hydrogen gas (H2)?