« previous next »

Author Question: What is the term for a modification of a substance that does not alter its chemical composition? ... (Read 120 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Aug 27, 2018
What is the term for a modification of a substance that does not alter its chemical composition?
 
  A) atomic change
  B) chemical change
  C) molecular change
  D) physical change
  E) none of the above

Question 2

Which of the following is an alkali metal?
 
  A) Al
  B) Cs
  C) Cu
  D) Mg
  E) none of the above


LVPMS

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Aug 27, 2018
Answer to Question 1

D)

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

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

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
Long-Term Potentiation Long-Term Potentiation
Associative Long-Term Potentiation Associative Long-Term Potentiation
The chemical structure of mescaline, derived from the peyote cactus. The chemical structure of mescaline, derived from the peyote cactus.
The amino acid lysine has the percent composition 49.3% C, 9.59% H, 19.2% N, and The amino acid lysine has the percent composition 49.3% C, 9.59% H, 19.2% N, and
Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction
Video: Spinal Cord Injury Animation

For a complete list of videos, visit our video library