Chemical Reactions: Active Learning Exercise

15 Questions | By John_Mitchell_WV | Last updated: Dec 6, 2017 | Total Attempts: 75

Chemical Reactions: Active Learning Exercise

Welcome to the Electronic Learning Environmental (E. L. E. ) for physical science and basic chemistry. Classically,chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. This is a worksheet to provide information for testing purposes. I wish you well and earn a high grade. And thank you for using Proprofs and Mitchell's Cosmic Adventure, science website.

Questions and Answers

1.

What were the three fuels used in the Space Shuttle Main Engines? (Please choose three most correct answers to receive credit for this question.)
- A.
  
  Hydrogen
- B.
  
  Oyxgen
- C.
  
  Hyrazine
- D.
  
  Helium
- E.
  
  Carbon Dioxide
2.

What is particles of any substance called?
- A.
  
  1 mole
- B.
  
  1 Formula Mass
- C.
  
  1 Molecular Mass
- D.
  
  1 Atomic Mass
- E.
  
  1 Atomic Mass Number
3.

Given the chemical formula . What is the name of this substance?
- A.
  
  Hydrazine
- B.
  
  Nitrogen hydride
- C.
  
  Nitrogen Fluoride
- D.
  
  Nitrogen Bromide
- E.
  
  Diatomic Nitrogen
4.

What are products from the oxidizing (burning) of the molecule Hydrazine? (Please select two most correct answers from the list below.)
- A.
  
  Hydrazine
- B.
  
  Diatomic Oxygen
- C.
  
  Diatomic Nitrogen
- D.
  
  Water
- E.
  
  Carbon Dioxide
5.

What are reactants from the oxidizing (burning) of the molecule Hydrazine? (Please select two most correct answers from the list below.)
- A.
  
  Hydrazine
- B.
  
  Diatomic Oxygen
- C.
  
  Diatomic Nitrogen
- D.
  
  Water
- E.
  
  Carbon Dioxide
6.

How many moles of atoms of any chemical element.
- A.
  
  1 mole
- B.
  
  2 moles
- C.
  
  12 moles
- D.
  
  1 204 moles
7.

What type of chemical reaction is involved by mixing Copper metal and Oxygen gas?
- A.
  
  Synthesis Reaction
- B.
  
  Double Replacement Reaction
- C.
  
  Decomposition Reaction
- D.
  
  Single Replacement Reaction
- E.
  
  Combustion Reaction
8.

How many moles of are found in 55.0 g of ? (Please enter your answer with the correct unit and carry to hundreds of a decimal point.)
9.

What color is Lead (II) Iodide? (Please enter your answer in lower case letters.)
10.

Please identify the correct diatomic molecules found on the Periodic Table of Elements. (This question requires multiple answers.)
- A.
  
  Hydrogen
- B.
  
  Nitrogen
- C.
  
  Oxygen
- D.
  
  Fluorine
- E.
  
  Chlorine
- F.
  
  Bromine
- G.
  
  Iodine
- H.
  
  Mercury Vapor
- I.
  
  Neon
11.

What type of chemical reaction is involved by mixing Copper + Silver Nitrate?
- A.
  
  Synthesis Reaction
- B.
  
  Double Replacement Reaction
- C.
  
  Decomposition Reaction
- D.
  
  Single Replacement Reaction
- E.
  
  Combustion Reaction
12.

Given the chemical formula . What is the chemical name?
13.

French chemist Henri-Louis Le Chatelier ( ? - ?) published the first version of his principle of chemical equilibrium in 1884.
- A.
  
  1750 - 1845
- B.
  
  1850 - 1936
- C.
  
  1850 - 1956
- D.
  
  1901 - 1995
14.

If 1 banana provides 100 Calories of energy. How many Calories of energy would be provided by 200 bananas? (Please do not enter any units with your answer.)
15.

Which law states that mass is neither created nor destroyed in a chemical reaction?
- A.
  
  Law of conservation of mass
- B.
  
  Law of conservation of energy
- C.
  
  Law of conservation of antimatter
- D.
  
  Law of conservation of electrons

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