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Author Question: Which of the following types of electromagnetic radiation is emitted from unstable elements? A) ... (Read 91 times)

Alygatorr01285

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  • Posts: 564
on: Aug 27, 2018
Which of the following types of electromagnetic radiation is emitted from unstable elements?
 
  A) gamma rays
  B) microwaves
  C) radio waves
  D) visible light

Question 2

The reaction was performed in the lab and 50.1 g of CO2 was collected from the reaction of 78.1 g of O2 with 62.4 g of C4H10. How many grams of the excess reactant are left over.
 
  2 C4H10 + 13 O2  8 CO2 + 10 H2O
  A) 15.7 g
  B) 21.8 g
  C) 28.0 g
  D) 40.6 g
  E) 45.8 g

Question 3

Which of the following bases produces only one OH- ion per molecule of formula unit when dissolved in water?
 
  A) potassium hydroxide
  B) calcium hydroxide
  C) aluminum hydroxide
  D) barium hydroxide


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meryzewe

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

D

Answer to Question 3

A


Alygatorr01285

  • Member
  • Posts: 564
Reply 2 on: Aug 27, 2018
Wow, this really help

deja

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Reply 3 on: Yesterday
Gracias!

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