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igor_vitrenko [27]
4 years ago
15

help!! i tried answering these on my own and turning it into my teacher and she said they were all wrong , can somebody help me

out here? if i could get the answers but also a slight explanation so i can understand please. id be extremely grateful

Chemistry
1 answer:
Kobotan [32]4 years ago
6 0
I don't know what your answers were but the more "stuff" there is the more energy it takes to freeze or boil it. Hope this could help
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How to convert 5.2 km to mm
ZanzabumX [31]
5.2 km to mm.
1km = 1000m
= 5.2 * 1000m.
=5200 m.                  1m = 1000mm

= 5200 * 1000mm
= 5200000 mm
4 0
4 years ago
Show the mechanism for the following reaction conducted at –5 °C in CCl4: cyclohexene bromine yields a dibromocyclohexane Draw w
Darya [45]

Answer:

See attachment.

Explanation:

In the first step, a cyclic structure with a positive bromine is formed. The bromine shares the positive charge with the two carbons that it is bonded to, so the carbons are partially positive.

The second bromine atom then attacks the carbon center, coming in from below the first bromine atom ("backside attack") where the antibonding orbital of the second bromine atom is.

The stereochemistry of the mechanism causes the final product to be an anti-dibromocyclohexane.

7 0
3 years ago
The range in size of most atomic radii is approximately
dsp73
2-5 cm. I hope it helps
5 0
4 years ago
What’s the ionic equation for lithium + water
disa [49]

Answer:

2Li(s) + 2H₂O(ℓ) ⟶ 2Li⁺(aq) + 2OH⁻(aq) + H₂(g)

Explanation:

An ionic equation uses the symbols (aq) [aqueous] to indicate molecules and ions that are soluble in water, (s) [solid] to indicate insoluble solids, and (ℓ) to indicate substances (usually water) in the liquid state.

In this reaction, solid lithium reacts with liquid water to form soluble lithium hydroxide and gaseous hydrogen .

1. Molecular equation

2Li(s) + 2H₂O(ℓ) ⟶ 2LiOH(aq) + H₂(g)

2. Ionic equation

Lithium hydroxide is a soluble ionic compound, so we write it as hydrated ions.

2Li(s) + 2H₂O(ℓ) ⟶ 2Li⁺(aq) + 2OH⁻(aq) + H₂(g)

7 0
3 years ago
A blank is 2 or more substances that are together in the same place but are not chemically combined.
hammer [34]

A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities of the individual substances are retained.

Hope this helps!

Please give brainliest!

7 0
3 years ago
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