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inessss [21]
3 years ago
11

A scientist is observing onion cells and human cheek cells under a microscope.

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
7 0

Answer:

The onion cells have a cell wall and the cheek cells do not.

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Find the final product for: Li + Br and show work.
miskamm [114]

Lithium is atomic number 3, so it has valency 1

While, Bromine is atomic number 35, and has valency 1

Lithium has an extra electron while Bromine need an electron, since they both need and have one electron, the form

LiBr (Lithium Bromide) where Li is +ve charged and Br is -ve charged

Happy to help :)

7 0
3 years ago
In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the follow
maw [93]

Answer:

22.73s

Explanation:

The reaction is a second order reaction, we know this by observing the unit of the slope.

rate constant = k = 0.056 M-1s-1

the initial concentration of BrO- [A]o = 0.80 M

time = ?

Final concentration [A]t= one-half of 0.80 M = 0.40M

1 / [A]t = kt + 1 / [A]o

1 / 0.40 = 0.056 * t + 1 / 0.80

t = (2.5 - 1.25) / 0.056

t = 22.73s

5 0
3 years ago
According to Newton’s first law of motion, when will an object at rest begin to move?
Maurinko [17]
When it is acted upon by an outside force
8 0
3 years ago
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What role does photosynthesis have in the carbon cycle?
hram777 [196]

Answer:

I think option A..

Explanation:

hope it's help uu

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6 0
2 years ago
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Which statement best explains why heating a liquid affects its viscosity?
mylen [45]
The statement that best explains why heating a liquid affects its viscosity is that "The molecules move faster at higher temperatures and overcome attractions more easily."<span>. Remember that viscosity is a physical property of the fluids that measure the resistance (opposition) to flow and it, generally decreases, as the temperature increases and the intermolecular force decrease.</span>
4 0
3 years ago
Read 2 more answers
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