« previous next »

Author Question: What is the term for a modification of a substance that does not alter its chemical composition? ... (Read 90 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?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Structure and function of a chemical synapse. Structure and function of a chemical synapse.
Discrimination between p and ppi and chemical structure of ATP Discrimination between p and ppi and chemical structure of ATP
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus
Composition of blood. Composition of blood.
Sun's composition of Gases. Sun's composition of Gases.
Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction
Video: Enzyme-Catalyzed Reactions

For a complete list of videos, visit our video library