« previous next »

Author Question: Calcium carbonate (CaCO3 ) is 34.5 Ca by mass. In a 418 g sample of CaCO3, how many grams of calcium ... (Read 93 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Aug 27, 2018
Calcium carbonate (CaCO3 ) is 34.5 Ca by mass. In a 418 g sample of CaCO3, how many grams of calcium are present?
 
  A) 144 g
  B) 40.08 g
  C) 235.1 g
  D) 83.6 g

Question 2

Vitamins such as vitamin B and vitamin C are often lost by boiling vegetables. Why?
 
  A) They are water soluble and are poured down the drain with the water.
  B) The heat of the boiling water destroys the vitamin.
  C) The heat of the boiling water causes the vitamin to evaporate.
  D) They are fat-soluble compounds and vegetables do not have much fat.
  E) none of the above


dawsa925

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

A Coronal Mass Ejection A Coronal Mass Ejection
Indications for Selected Calcium Salts Indications for Selected Calcium Salts
Sample prescriptions of drugs for oral fungal infections. Sample prescriptions of drugs for oral fungal infections.
Sample client goals from the Wellness Massage Pyramid. Sample client goals from the Wellness Massage Pyramid.
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chl Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chl
Video: Ear Virtual Tour Animation

For a complete list of videos, visit our video library