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

Author Question: A chemical change results in A) new atoms. B) a physical change. C) new materials. D) a new ... (Read 103 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 29, 2018
A chemical change results in
 
  A) new atoms.
  B) a physical change.
  C) new materials.
  D) a new phase.

Question 2

A sample of iron weighs more after it rusts because
 
  A) it has expanded into a greater volume.
  B) rust contains twice as many iron atoms.
  C) of the additional oxygen it contains.
  D) Wrong. Iron actually weighs less after it rusts.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

trampas

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C


ghost!

  • Member
  • Posts: 560
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Applying the FITT Principle to Each Exercise Component of Health-Related Physical Fitness Applying the FITT Principle to Each Exercise Component of Health-Related Physical Fitness
Natural Causes of Climate Change Natural Causes of Climate Change
4 ways your breasts change after pregnancy "4 تغيّرات تطرأ على ثدييكِ ... 4 ways your breasts change after pregnancy "4 تغيّرات تطرأ على ثدييكِ ...
Consistency and Change in Personality Over the Lifespan Consistency and Change in Personality Over the Lifespan
If these materials were manufactured into a tubular shape and used to replace a section of the ... If these materials were manufactured into a tubular shape and used to replace a section of the ...
Examples of the action of chemical mutagen Examples of the action of chemical mutagen
Video: Brain Lobes Animation

For a complete list of videos, visit our video library