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 34 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
:D TYSM


Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

For a complete list of videos, visit our video library