This topic contains a solution. Click here to go to the answer

Author Question: Dalton's atomic theory is based on several assumptions, which are listed below. Which of these ... (Read 67 times)

stevenposner

  • Hero Member
  • *****
  • Posts: 608

Question 1

Copper occurs in an isotopic mixture of 69.09% 63Cu (mass = 62.93 u per atom) and 30.91% 65Cu (mass = 64.93 u per atom). What is the average atomic mass of copper?
◦ 64.00 u
◦ 63.55 u
◦ 63.45 u
◦ 64.31 u
◦ 29.00 u

Question 2

Dalton's atomic theory is based on several assumptions, which are listed below. Which of these assumptions is strictly correct?
I)  All atoms of the same element are identical.
II)  Atoms are indivisible and unchangeable.
III)  Chemical changes are the result of the combination, separation, and rearrangement of atoms.
◦ I, II, and III are correct.
◦ I and III are correct.
◦ II and III are correct.
◦ I and II are correct.
◦ III is correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by stevenposner on Jul 8, 2021

aham8f

  • Sr. Member
  • ****
  • Posts: 336
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 45% of students answer this correctly




stevenposner

  • Member
  • Posts: 608
Reply 2 on: Jul 8, 2021
Gracias!


bassamabas

  • Member
  • Posts: 294
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

For a complete list of videos, visit our video library