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Mendeléyev diseño su tabla casi al mismo tiempo que un químico alemán llamado Julius Lothar Meyer, quien la publicó un año después. No obstante, finalmente se impuso el orden de Mendeléyev. ¿Sabes cuál
answered
Oct 31, 2021
Chemistry
high-school
5
votes
57.8k
views
Which statements are true about galaxies, stars, and the universe? (more than one true answer by the way) 1. Stars come in different shapes, including elliptical, spiral, and irregular. 2. One light year
answered
Oct 25, 2021
Physics
middle-school
6
votes
22.2k
views
Chivalry was introduced to the court of England by a former French queen named?
answered
Aug 30, 2021
English
high-school
4
votes
115k
views
When Socialism is taken to its extreme, it's called Authoritarianism. Is the following statement true or false? Select one: True False
answered
Aug 14, 2021
Social Studies
high-school
3
votes
41.1k
views
You are opening up a brand new retail strip mall. You presently have more potential retail outlets wanting to locate in your mall than you have space available. What is the most appropriate tool to use
answered
May 2, 2021
Business
high-school
2
votes
56.0k
views
In the given figure ABCD is a parallelogram, E is the midpoint of BC. DE produced meets AB produced at L. Prove that AB = B L and AL=2DC
answered
Mar 29, 2021
Mathematics
high-school
4
votes
23.9k
views
−4 2/5 ÷ (−5) divide a) −22/25 b) −8/25 c) 8/25 d) 22/25
answered
Feb 1, 2021
Mathematics
middle-school
1
vote
179k
views
Solve the equation. d – 267 = 145 A. d= 412 B. d=283 C. d=557 D. d=567 Please help me
answered
Jan 29, 2021
Mathematics
high-school
1
vote
177k
views
A 2.9-kg cart is rolling across a frictionless, horizontal track toward a 1.4-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus,
answered
Sep 9, 2020
Physics
college
3
votes
177k
views
The reaction of sodium peroxide and water produces sodium hydroxide and oxygen gas. The following balanced chemical equation represents the reaction. 2 Na^2O^2(s) + 2 H2O(l) → 4 NaOH(s) + O^2(g) If 15.
answered
May 15, 2020
Chemistry
high-school
3
votes
92.0k
views
After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 5.40 rad/s and it rotated 12.3 revolutions before coming to rest. You may want to review what was itsaverage
answered
Feb 18, 2020
Physics
college
3
votes
22.3k
views
Find the least common multiple. 3x^3, 12y^2, and 15xy^3
answered
Dec 21, 2019
Mathematics
high-school
1
vote
228k
views
Which is an example of pure chemistry
answered
Sep 1, 2019
Chemistry
middle-school
1
vote
79.9k
views
Multiply the following polynomials and write the resulting polynomial in descending order. (3x-8)(2x^2+4x-9)
answered
Feb 27, 2019
Mathematics
high-school
5
votes
139k
views
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