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Maurinko [17]
2 years ago
15

Need the helps thoooo

Chemistry
2 answers:
Maslowich2 years ago
6 0
Hey dude. It's letter D. Compound. Compounds are composed of two or more separate elements.
tigry1 [53]2 years ago
6 0
I think it is compound. 
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The elements found in Group 2A, from top to bottom, include beryllium, magnesium, calcium, strontium, and barium. Which of these
elena-14-01-66 [18.8K]
Electronegativity is the property of the element to attract electrons to its nucleus. The trend of electronegativity in the periodic table is decreasing from right to left and decreasing from top to bottom. hence from the given elements, the element with the highest electronegativity should be A.beryllium 
5 0
3 years ago
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what actually is left over of water once it self ionizes? Like what exactly are the hydrogen and hydroxide ions? Do they remain
GrogVix [38]
The formula for the self ionization of water is 2H₂O(l)⇄H₃O⁺(aq)+OH⁻(aq)

The hydronium (H₃O⁺) is usually just referred to as a hydrogen ion or a proton (H⁺) and hydroxide (OH⁻) doesn't have another name that I am aware of.  These ions do stay in solution.  However the concentrations are really small and the equilibrium constant (K(w)) is 1×10⁻¹⁴.

I hope this helps.  Let me know if anything is unclear.
5 0
3 years ago
Put this in scientific notation. 10 m to centimeters and 37.5 g/mL to kg/L
noname [10]

1m = 100cm

so 10m = 100*10 = 1000cm or in scientific notation 1.00x10^3 cm

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so 1g/mL = (1/1000)/(1/1000)kg/L

=1kg/L

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4 0
3 years ago
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Do you think “doing the wave” is a wave? Why or why not?
zmey [24]

Answer:

i mean kinda they should throw people in the air tho lol

Explanation:

3 0
3 years ago
BRAINLIESTTT ASAP!! PLEASE HELP ME :))
goldenfox [79]

Answer:

Solar panels and solar cells.

Explanation:

The word "solar" means "relating to or denoting energy derived from the sun's rays".

Hope this helps! :)

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3 years ago
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