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natka813 [3]
3 years ago
11

1

Chemistry
1 answer:
zheka24 [161]3 years ago
3 0
It’s a I think A because they Need light to be a refracting telescope. Making them a refracting telescope
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Which structure assist with cell ur respiration?
Alexandra [31]

Answer:

Mitochondria

Explanation:

Mitochondria are organelles whose membranes are specialized for aerobic respiration.

4 0
3 years ago
A chemical substance formed as a result of a chemical reaction is a *
MatroZZZ [7]

I think the answer is product.

6 0
3 years ago
If the atomic radius of a calcium crystal is 180 pm, what is the length of the edge of the unit cell? (the calcium crystal forms
My name is Ann [436]
<span>Calcium crystal has a face center cubic (FCC) structure. For FCC structure,
relation between edge length (a) and radius (r) is
                                                       a = 2</span>√2 r
<span>Given: r = 180 pm
Therefore, a = 2</span>√2 180
<span>                     = 2 x 1.141 x 180
                     = 410.76 pm

</span><span>The length of the edge of the Ca unit cell is 410.76 pm.</span><span>

 </span>
4 0
4 years ago
What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?
crimeas [40]

Answer: 322.56 Kelvin

Explanation:

Use the Ideal Gas Law

PV=nRT

R is the gas constant

T is the temperature in Kelvins

P is the pressure in atmospheres

V is the volume in liters

n is the number of moles of gas

First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.

751.2mmHg (torr) =0.988atm

Now plug everything in

(0.988)(26)=(0.97)(0.0821)T\\T=322.56K

5 0
3 years ago
A substance that contains hydrogen that may be replaced by a metal is a/an
vovangra [49]
The substance that contains hydrogen that may be replaced by a metal is an acid~
3 0
3 years ago
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