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Answers by Madelin

Answers by Madelin
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Cesium is a radioactive element which was released into the ocean after the Fuushima nuclear power plant meltdown in 2011. Cesium's half-life is 30 years, which means that for every unit of cesium, half
answered Jul 19, 2020
5 votes
184k views
If you are given only the amount, in moles, of an unidentified chemical quantity, you can calculate the number of: representative particles in the sample << I choose this one am i right? atoms in the sample molecules in the sample particles, atoms and molecules
answered May 31, 2020
2 votes
69.6k views
Explain how to use the midpoint formula to prove or disprove that ABCD is a parallelogram. A) Prove that AC and BD do not have the same midpoint. The diagonals of a parallelogram cannot have the same midpoint.
answered Aug 4, 2019
3 votes
92.8k views
Which empire or kingdom's position on the Red Sea contributed to its rise as an important trading power? Select the best answer from the choices provided. A. The Axum Kingdom B. The Kush ite Empire C.
answered Jul 3, 2019
4 votes
50.8k views
The physical components of a computer are called?
answered Jun 14, 2019
3 votes
228k views
A certain radioactive isotope decays at a rate of 2% per 100 years. if t represents time in years and y represents the amount of the isotope left then the equation for the situation is y=y0e-0.0002t .
answered May 16, 2019
4 votes
208k views
Young adults (male and female) who frequently comment on peers' facebook images are more likely than others to feel
answered Feb 14, 2019
2 votes
78.6k views
Which of the following characterizes the Pax Mongolica? A. The spread of violence and conquest B. Political instability and fights for power C. Increased trade and foreign influences D. Strengthening of
answered Nov 27, 2018
4 votes
129k views
Southern california beaches would have more sand if __________.
answered Nov 21, 2018
1 vote
182k views
Ozone _____. is made of nitrogen and oxygen is found in the ionosphere absorbs harmful radiation from the sun transmits radio signals around the Earth
answered Jul 27, 2018
4 votes
200k views
The angle of elevation from the bottom of a scenic gondola ride to the top of a mountain is 22. If the vertical distance from the bottom to the top of the mountain is 689 feet and the gondola moves at
answered Apr 11, 2018
2 votes
94.7k views
A new student is talking to you about her classmates, but keeps getting them confused. Correct each of her descriptions by completing the statement that follows it. —Daniela es seria. —No, es a. baja.
answered Feb 20, 2018
5 votes
59.2k views
The marker costs 1/3 as much as the pen. the pen costs 1/3 as much as the book. the book costs 1/3 as much as the game. the price of the marker is what fraction of the price of the game?
answered Jan 19, 2018
5 votes
13.1k views
If a DNA double helix is gradually heated, which bonds in the molecule will break first (are the weakest)? A. bonds between the nitrogenous bases B. bonds between the bases and the sugars C. bonds between
answered Oct 28, 2017
7 votes
37.7k views
A submarine descended 1400 meters below the surface of the water. It then rose 800 meters and then descended 350 meters. What was the submarine's net gain or loss in altitude? –1200 m –950 m –400 m 650
answered Jan 15, 2017
4 votes
132k views
Why does Tupperware blow its top in the microwave?
answered Mar 13, 2016
3 votes
561 views
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