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The "hardness" of water describes _____. A)how quickly it heats and cools B)its attraction to other substances C(its level of dissolved minerals D)how much dissolved oxygen it contains
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Asked 11/14/2014 9:22:50 AM
Updated 2/25/2017 11:29:42 PM
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This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [2/25/2017 11:29:42 PM]
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User: The "hardness" of water describes _____. A)how quickly it heats and cools B)its attraction to other substances C(its level of dissolved minerals D)how much dissolved oxygen it contains

Weegy: The "hardness" of water describes its level of dissolved minerals.
emdjay23|Points 16890|

User: Surface tension _____. causes water to spread out is the ability of water to dissolve a substance creates a thin, elastic layer of hydrogen atoms is caused by cohesion between water molecules on the surface

Question
Asked 11/14/2014 9:22:50 AM
Updated 2/25/2017 11:29:42 PM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [2/25/2017 11:29:42 PM]
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Surface tension is caused by cohesion between water molecules on the surface.
Added 2/25/2017 6:09:01 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [2/25/2017 11:29:46 PM]
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descending powers of x: (4x2 - 10x -24) (2x 3)
Weegy: c. x^2 + 10x + 21. This one is a quadratic expression. User: descending powers of x: (4x2 - 10x -24) (2x + 3) Weegy: c. x^2 + 10x + 21. This one is a quadratic expression. (More)
Question
Updated 11/16/2014 4:55:39 AM
1 Answer/Comment
(4x^2 - 10x -24) (2x + 3)
= 4x^2*2x - 10x*2x - 24*2x + 4x^2*3 - 10x*3 - 24*3
= 8x^3 - 20x^2 - 48x + 12x^2 - 30x - 72
= 8x^3 - 8x^2 - 78x - 72

Added 11/16/2014 4:55:39 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [11/16/2014 10:40:33 AM]
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