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Answers by Hch

Answers by Hch
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What happens when one freezes salt water? A - The solvent particles make it easier for the water molecules to form crystals. B - The solute particles make it harder for the water molecules to form crystals.
answered Jan 7, 2019
1 vote
40.2k views
The scale on a map is 1 cm:60 km. Which of the following proportions could be used to find how many kilometers are represented by 2.5 centimeters on the map? 1cm/60km = 2.5 cm/x km 1cm/60km = x cm/2.5
answered Dec 9, 2018
4 votes
27.8k views
How many protons and neutrons does Nitrogen - 20 have?  need help before tomorrow
answered Oct 26, 2018
1 vote
181k views
Can someone tell me the answer to this?
answered Oct 16, 2018
6 votes
188k views
Rosa has decided to sell pet rocks at an art fair for $5 each. she has paid $50 to rent a table at the fair and it costs her $2 to package each rock with a set of instructions. for what numbers of sales
answered Aug 30, 2018
5 votes
46.2k views
What components makes up the backbone of DNA? a adenine & guanine b cytosine & thymine c phosphate & sugar d nitrogen base & sugar
answered Jun 29, 2018
6 votes
40.9k views
I really need help! What is the length of segment AB? A coordinate plane is shown. Point A is located at 6, 2, and point B is located at 0, 10. The points are connected by a line segment. 5 6 8 10
answered May 5, 2018
1 vote
169k views
The perimeter of a rectangle is at most 80 inches. The length of the rectangle is 25 inches. The inequality 80-2w>50 can be used to find w, the width of the rectangle in inches. Solve the inequality and
answered Mar 30, 2018
2 votes
202k views
Which has been a negative impact of technology? A. More human labor B. Less farming C. Less access to food D. More waste
answered Aug 5, 2017
6 votes
94.3k views
Solve z-5 /7 = -1 z=?
answered May 22, 2017
6 votes
183k views
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