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The core of the 40 calcium atom, the most common isotope is symbolized by ₂₀⁴⁰Ca. 1) Indicate the composition of the atom of calcium. 2) Calculate its mass. Compare it to the core's one. What can you say
answered
Sep 19, 2019
Chemistry
middle-school
4
votes
110k
views
Why do you need to read the entire text before you determine the theme
answered
May 29, 2019
Mathematics
middle-school
2
votes
16.8k
views
The molality of a solution containing 8.1 moles of solute in 4847 g of solvent is ____.
answered
May 12, 2019
Chemistry
high-school
5
votes
224k
views
Reducing or removing alliances or embassies is the definition of the sanction of
answered
Mar 28, 2019
History
middle-school
0
votes
29.3k
views
Which of the following is a correct translation for the expression 9 – x ? A. a number subtracted from 9 B.a negative number subtracted from 9 C.a number minus 9 D. the difference between a number and
answered
Jan 16, 2019
Mathematics
high-school
3
votes
38.5k
views
During their long exile judaeans became known as
answered
Nov 7, 2018
History
middle-school
6
votes
107k
views
How did the rise of industrialization change the nature of american businesses?
answered
Jul 21, 2018
History
high-school
3
votes
62.2k
views
Look at the map of physical features of North America in the student text. Suppose you were traveling west from the Mississippi River to the pacific coast. In terms of elevation, describe the land on your
answered
Jun 16, 2018
History
middle-school
4
votes
107k
views
A cylindrical water tank is being filled with a hose. The depth of the water increases by 1 1/4 ft per hour. How many hours will it take for the water level in the tank to be 3 1/2 ft deep? Enter your
answered
Jan 27, 2018
Mathematics
middle-school
5
votes
155k
views
have all my 68 points just help me! Which identifies a characteristic of a dynamic character? a) Changes over the course of the story. b) Is the same at the end of the story as the beginning. c) Is the
answered
Oct 26, 2017
Social Studies
middle-school
3
votes
7.5k
views
Which characteristics best describe an exploration narrative such as "A Journey Through Texasî?
answered
Jul 20, 2017
English
high-school
4
votes
233k
views
How do I write a paragraph on weaknesses and strengths of my job
answered
Jun 11, 2015
English
high-school
2
votes
184k
views
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