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

Author Question: You boil water in a pot and find that there is a white coating lining the inside of the pot after ... (Read 73 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jul 16, 2018
You boil water in a pot and find that there is a white coating lining the inside of the pot after you are done. What happened?
 
  A) The pot must have had a mineral in it already and water stirred it up.
  B) The pot was dirty.
  C) Water evaporated and left bacteria on the inside of the pot.
  D) The mineral precipitated from the water as the water boiled off as steam.

Question 2

Of the 89 naturally occurring elements, how many are needed to account for 99.7 percent of the mass of Earth's crust?
 
  A) 42
  B) 21
  C) 12
  D) 10


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


mp14

  • Member
  • Posts: 534
Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

A pteridophyte stem with tracheophyte adaptations for transporting and conserving water. A pteridophyte stem with tracheophyte adaptations for transporting and conserving water.
Biston betularia betularia morpha typica, the white-bodied peppered moth. Biston betularia betularia morpha typica, the white-bodied peppered moth.
Water Water
How to use L’Hospital’s Rule to find the limit of a function (Part 3) How to use L’Hospital’s Rule to find the limit of a function (Part 3)
The Excretory System Water and waste products from cells The Excretory System Water and waste products from cells
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library