This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: All of the ________ have a valence shell electron configuration ns1. A) noble gases B) halogens ... (Read 113 times)

Frost2351

  • Hero Member
  • *****
  • Posts: 557
on: Aug 27, 2018
All of the ________ have a valence shell electron configuration ns1.
 
  A) noble gases
  B) halogens
  C) chalcogens
  D) alkali metals
  E) alkaline earth metals

Question 2

How much heat is absorbed/released when 35.00 g of NH3(g) reacts in the presence of excess (g) to produce NO(g) and H2O(l) according to the following chemical equation? 4 NH3(g) + 5 O2(g)  4 NO(g) + 6 H2O(l) H = 1168 kJ
 
  A) 600.1 kJ of heat are absorbed.
  B) 600.1 kJ of heat are released.
  C) 2400 kJ of heat are absorbed.
  D) 2400 kJ of heat are released.

Question 3

How many moles of Na+ are present in 343 mL of a 1.27 M solution of Na2SO4?
 
  A) 0.436
  B) 0.871
  C) 1.31
  D) 3.70
  E) 11.1

Question 4

Compounds composed of a salt and water combined in definite proportions are known as ________.
 
  A) clathrates
  B) homogenates
  C) ionic solids
  D) molecular solids
  E) hydrates


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

durant1234

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A

Answer to Question 3

B

Answer to Question 4

E


Frost2351

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


durant1234

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Aug 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

The Z scheme, which depicts the energy of an electron as it moves from photosystem II to NADP+ The Z scheme, which depicts the energy of an electron as it moves from photosystem II to NADP+
the fibrous configuration of a dry macrofoam sponge swab the fibrous configuration of a dry macrofoam sponge swab
Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Scorpions, Spiders and Sharks: Electron-Microscope Images Scorpions, Spiders and Sharks: Electron-Microscope Images
The electron transport chain. The electron transport chain.
A tester that uses a blue liquid to check for exhaust gases in the exhaust, which would indicate a ... A tester that uses a blue liquid to check for exhaust gases in the exhaust, which would indicate a ...
Video: Language Areas Animation

For a complete list of videos, visit our video library