Ionic Compounds
What type of bond forms when a metal transfers an electron to a non-metal?
Ionic bond
What reaction involves two or more reactants combining to form a single product?
Synthesis (combination)
What is the law stating that matter cannot be created or destroyed in a chemical reaction?
Law of Conservation of Mass
Before starting any chemistry experiment, students should ALWAYS wear which 2 items of personal protective equipment?
Apron/Lab coat, safety goggles
Which CHAC staff member was Mr Ralston's specialist maths teacher?
Mr O'Brien
What is the chemical formula of magnesium chloride?
MgCl2
Which reaction type can be represented by this general formula?: AB → A + B
Decomposition
What are the numbers placed in front of chemical formulas to balance an equation?
Coefficients
Which variable is the one that is intentionally manipulated and studied in an experiment?
Independent variable
What breed of dog does Mr Ralston own?
Bonus (x2): What is her name?
Greyhound
Beans
What is a positively charged ion called?
A cation
Burning methane in oxygen is an example of which reaction type?
Combustion
How many moles of oxygen molecules (O₂) are needed to react with 2 moles of hydrogen molecules (H₂) according to the equation 2H₂ + _O₂ → 2H₂O?
1 mole
A graph should have which two essential features on both axes?
Labels and units
What is Mr Ralston's current homeroom?
4P
What is the ion formed when an oxygen atom gains two electrons?
O2- (oxide)
When zinc reacts with hydrochloric acid to produce hydrogen gas and zinc chloride, it is which type of reaction?
Single replacement (displacement)
According to 2Mg + O₂ → 2MgO, how many moles of magnesium oxide can be produced from 4 moles of magnesium?
4 moles of MgO
Which of these would have the lowest instrumental uncertainty? 100mL beaker, 100mL measuring cylinder, 100mL volumetric flask, 100mL conical flask.
100mL volumetric flask
Mr Ralston's major in his Science degree was Chemistry. What other scientific discipline was his minor?
Earth and Environmental Science / Geology
Name this compound: Na₂SO₄
Sodium sulfate
What type of reaction produces a solid precipitate when two aqueous solutions are mixed?
Double replacement (displacement)
If 2 moles of H₂ produce 2 moles of H₂O, how many moles of water are produced from 5 moles of hydrogen (assuming excess oxygen)?
5 moles of H2O
Complete this sentence:
Repeated measurements (trials) improve the ________ of results by reducing the effect of _______ errors.
reliability, random
How did Mr Ralston break his finger on a bus in early 2018?
Doing the YMCA