« previous next »

Author Question: Magnesium is the element that appears in the second group of the second period. Indicate whether ... (Read 48 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
on: Aug 27, 2018
Magnesium is the element that appears in the second group of the second period.
 
  Indicate whether the statement is true or false

Question 2

Phosphates were once a common component of laundry detergents because they soften water. Why has their use been restricted?
 
  A) The phosphates are poisonous to plants.
  B) The phosphates are plant nutrients that lead to excess algae growth.
  C) The phosphates were getting into human drinking supplies.
  D) The phosphates diminished the supply of calcium found in cow's milk.


alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Aug 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Photograph of the retina of the eye. The optic disk appears yellow and the retinal arteries radiate Photograph of the retina of the eye. The optic disk appears yellow and the retinal arteries radiate
ABO Blood Group ABO Blood Group
Anthropocene Period Anthropocene Period
Embryonic Period Embryonic Period
Embryonic Period - 7th week Embryonic Period - 7th week
Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule
Video: Mycobacterium tuberculosis: Drug Resistance and Natural Selection

For a complete list of videos, visit our video library