Answers by Leon Xiong
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Answers by Leon Xiong

Answers by Leon Xiong
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Where do most volcanic eruptions happen ?​
answered Apr 4, 2022
3 votes
211k views
How much heat is required to convert 20.0 g of ice at 50.0⁰C to liquid water at 0.0⁰C? The specific heat of ice is 2.06 J/(g∙⁰C) and the heat of fusion of water is 334 J/g.
answered Jan 11, 2022
7 votes
11.9k views
Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.
answered Oct 31, 2021
5 votes
93.8k views
Write two numbers between 50 and 60 that are both multiples of the same number.What factor do they have in common?
answered Oct 9, 2021
2 votes
76.4k views
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answered Sep 28, 2021
4 votes
57.9k views
Factor the trinomial: 2x^2+13x+21
answered Sep 8, 2021
4 votes
233k views
Imagine you work at a local store. In the register all you have are nine $10 bills, nine $1 bills, and nine dimes. What’s the largest amount of change that you can give someone? What’s the least? What
answered Jun 3, 2021
6 votes
140k views
Can someone help me rewrite these in the yo form
answered Apr 2, 2021
3 votes
76.5k views
Fictitious element X has an a average atomic mass of 254.9 and only 2 isotopes, One of its isotopes has an abundance of 72.00 and a mass of 250.9 amu. What is the atomic mass of the second isotope? 265.
answered Mar 29, 2021
7 votes
109k views
Suppose a toy rocket is launched vertically upward from ground level with an initial velocity of 128 feet per second. If air resistance is ignored, the rocket's h height after t seconds is given by the
answered Feb 13, 2021
4 votes
227k views
Some bacteria can survive for long periods of time under harsh conditions because they can form a ______________.
answered Oct 26, 2020
6 votes
37.8k views
What is radioactivity? what is radioactivity? radioactivity is spontaneous radiation from an atomic nucleus. radioactivity is controlled radiation from a atomic nucleus. radioactivity is controlled radiation
answered Oct 20, 2019
6 votes
122k views
Sam places 5 g of baking soda in 5 g of liquid vinegar, and notices fizzing. After all the fizzing stops, 5 g of liquid remains. How much gas escaped during the reaction? F. 10 G. 5 H. 2 J. 0 PLEASE HELP!
answered Aug 14, 2019
3 votes
97.8k views
Match the vocabulary word to its correct definition. 1. element a collection or group of objects indicated by braces, { } 2. null set a set containing no elements; also called the empty set 3. set a member
answered Mar 22, 2019
5 votes
23.4k views
Anna wants her son Danny to spend more time outside in the fresh air, but he always resists, preferring to play inside on the computer. How can Anna use negative reinforcement to increase Danny's time
answered Mar 14, 2019
1 vote
170k views
Find the perimeter....
answered Jan 30, 2019
0 votes
183k views
Which sequence shows all the colors of visible light arranged from shortest to longest wavelength?
answered Nov 25, 2018
4 votes
216k views
During one scene of a popular television show, an actor pours a box of brand-name cereal into a bowl and begins to eat it. what does this exemplify
answered Jul 10, 2018
0 votes
231k views
Why are american firms moving manufacturing jobs overseas?
answered Jun 25, 2018
0 votes
119k views
Review the first paragraph of the story. Which sentence correctly summarizes this section? Negore followed the trail of his own people, determined to exterminate them. Negore found the lowlands swampy
answered May 20, 2018
3 votes
56.3k views
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