What is the name of the family for group 1 on the Periodic table?
What are Alkali metals?
100
What type of reaction does the following equation represent?
FeS + 2HCl --> FeCl₂ + H₂S
What is Double Displacement Reaction?
100
This chemical equation represents what happens when a nail rusts: 4Fe + 3O₂ –› 2Fe₂O₃. The total mass after the reaction is what to the mass before the reaction?
What is exactly the same as before the reaction?
100
What is used to measure mass?
What is tripple beam balance?
100
What is it called when a bar magnet is moved through a wire coil, causing an electric current?
What is Electromagnetic induction?
200
Which of the following elements is classified as a metal? Bromine, Helium, Sulfur, or Lithium?
What is Lithium?
200
In which kind of chemical reaction does a compound break apart and form two or more new substances?
What is Decomposition Reaction?
200
5 grams of Iron reacts with 14 grams of water to produce Iron oxide. What is the mass of the Iron oxide? (Fe + O -> FeO)
What is 19 grams?
200
The law of Universal Gravitation states that all objects that have mass have what?
What is gravity?
200
A doorbell contains a simple electromagnet. Which change would most likely increase the strength of an electromagnet?
Longer wires, fewer wire coils, an aluminum core, or a larger power source?
What is a larger power source?
300
Which class of elements best conducts electricity? Metals, nonmetals, semimetals, or Noble Gases?
What are Metals?
300
What are the products in the following chemical equation?
NaCl + AgF --> NaF + AgCl
What is NaCl, AgF?
300
50 grams of a solid reacts with 50 grams of a liquid. During the reaction, bubbles form as a gas is given off. The final product is a solution with a mass of 88 grams. How much gas is produced in the reaction?
What is 12 grams?
300
What instrument measures the force of gravity?
What is Spring scale?
300
What is the difference between a solenoid and an electromagnet?
What is a solenoid does not have a soft iron core?
400
According to the periodic table, how many neutrons are in an atom of potassium (K) that has an atomic mass of 41?
What is 22 neutrons?
400
Evaluate this equation. 4Al +O₂ --> 2Al₂O₃. What is the problem?
What is There is one missing oxygen atom in the reactants?
400
A barium sulfide solution and a sodium chloride solution are added to the same beaker in a chemistry lab. After 10 minutes the beaker contains barium chloride in a solid state and a sodium sulfide solution. What are the reactants?
What is barium sulfide solution and sodium chloride solution?
400
What is the mass of a 60 kg astronaut on Earth? (Weight= Mass x Gravity).
What is 60 kg?
400
Where is the Earth's magnetic field the strongest?
What are the poles?
500
Which family on the Periodic Table cannot bond with any other element?
What is Noble Gases?
500
Balance the following Chemical Equation: H₂ + O₂ --> 2H₂O
What is "2H₂ + O₂ --> 2H₂O"
500
The total mass of an open container of water and a separate Alka-Seltzer tablet is 41.37 g. After the tablet is dropped into the water and the fizzing stops, the total mass is 41.31 g. How much gas was produced in this reaction?
What is .06 grams?
500
What is gravity measured in?
What is m/s² (Meters per second squared)
500
What is being described: presence of poles, attract magnetic materials, magnetic field, opposite poles attract, same poles repel, and domains go in same direction?