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lesantik [10]
2 years ago
11

No pure elements are liquids at room temperature.

Chemistry
1 answer:
Luden [163]2 years ago
8 0
Mercury and Bromine are liquid at room temperature.
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SOVA2 [1]
Which surface ocean current has the warmest water.
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Which choice represents a pair of resonance structures? Note that lone pairs have been omitted for clarity. View Available Hint(
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Answer:

A. O=C=O and O≡C−O

Explanation:

Resonance:                                                                                                                

          When the electron distribution on the molecule become uneven like one molecule have more electron compare to other.Resonance occurs due to overlap of the orbitals.When electron flow through pi system then resonance occurs.

So the option A is correct.

A. O=C=O and O≡C−O

6 0
3 years ago
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zhuklara [117]

Answer:

That means that if you are calculating entropy change, you must multiply the enthalpy change value by 1000. So if, say, you have an enthalpy change of -92.2 kJ mol-1, the value you must put into the equation is -92200 J mol-1

8 0
3 years ago
Which best defines color?
katrin [286]

Answer:

its A

Explanation:

The definition of color is a component of light which is separated when it is reflected off of an object. The appearance of objects or light sources described in terms of the individual's perception of them, involving hue, lightness, and saturation for objects, and hue, brightness, and saturation for light sources.

5 0
2 years ago
How many grams of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide
nordsb [41]

Answer:

2 grams.

Explanation:

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2*1 g hydrogen   reacts with 2*16  g oxygen.

so 2g H2 reacts with 32 g O2.

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