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Zinc has three major and two minor isotopes. For this problem, assume that the only isotopes of zinc are the major ones, zinc-64, zinc-66, and zinc-68. The atomic mass of zinc-64 is 63.9291 Da, that of
answered
Jun 17, 2020
Chemistry
college
4
votes
70.7k
views
What was an argument of the populist party in the late 1800s
answered
Mar 21, 2020
History
middle-school
2
votes
231k
views
Which is not a sign of diabetes
answered
Mar 2, 2020
Health
high-school
5
votes
70.1k
views
Explain how you can round 25.691 to the greatest place.
answered
Sep 10, 2019
Mathematics
middle-school
6
votes
117k
views
What is the most likely reason for using the following model? The object is too small. The object represents a set of data. The object cannot be directly observed. The object represents a prediction about
answered
Aug 4, 2019
Biology
high-school
2
votes
48.9k
views
Pre-Calculus Help? Polar and Parametric Equations?
answered
Jun 15, 2019
Mathematics
high-school
4
votes
800
views
What difference between slow twitch and fast twitch muscle fibers relates most to their difference in function?
answered
Apr 20, 2019
Health
high-school
6
votes
30.2k
views
Helppppp plzzzzz!!!!!!
answered
Nov 27, 2018
Mathematics
middle-school
6
votes
106k
views
Radioactive isotopes are used as contrast dyes to study soft tissues such as the gastrointestinal tract. The radiocontrast dyes are considered safe because the isotopes have short half-lives and the isotopes
answered
Nov 21, 2018
Chemistry
college
3
votes
96.7k
views
The eighth-grade students at Shady Oak School took a poll about their afterschool activities. The study concluded that 75% of the eighth-grade students at the school currently take part in at least two
answered
Nov 8, 2018
Mathematics
middle-school
2
votes
144k
views
Which event resulted in the creation of the Civilian Conservation Corps?
answered
Aug 27, 2018
Social Studies
college
3
votes
33.9k
views
If you were writing a recipe for pasta for your sister, how would you tell her to add salt to the water? Necesitas añadir pimienta a la leche. Necesitas machacar la sal en el agua. Necesitas añadir sal
answered
Jul 1, 2018
Spanish
middle-school
3
votes
73.3k
views
If the actual frictional force is equal to 1 lb., then how much effort (force) would be required to drag a 90 lb. box up the plane? 10+ lb. 10- lb. 9+ lb. 9- lb.
answered
Mar 19, 2018
Physics
high-school
2
votes
79.6k
views
What was the significance of the Balfour declaration
answered
Nov 18, 2017
History
high-school
0
votes
209k
views
What good did the Kiowa eat
answered
Apr 22, 2017
Social Studies
middle-school
0
votes
16.3k
views
Megan rounded 366,458 to 370,000. to wich place.did megan round the number
answered
Jan 27, 2017
Mathematics
middle-school
5
votes
167k
views
What are the next 4 multiples of 2/6
answered
May 11, 2016
Mathematics
middle-school
7
votes
86.4k
views
The development of the railroads during the 1800s dramatically changed life in America in many ways. In which of the following ways did the railroads change life in America? A. They opened new areas of
answered
Jan 18, 2015
History
middle-school
1
vote
162k
views
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