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Wittaler [7]
2 years ago
13

The three most common phases of matter are

Chemistry
1 answer:
Veseljchak [2.6K]2 years ago
7 0

Answer:

SOLID, LIQUID, AND GAS

Explanation:

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How many neon atoms are contained in (7.27x10^2) grams of neon?
statuscvo [17]

Answer: 2.19x10^25 atoms

Explanation:

Molar Mass of Neon = 20g/mol

1mole(20g) of Neon contains 6.02x10^23 atoms.

Therefore, 7.27x10^2g of Neon will contain x atoms i.e

X atoms = (7.27x10^2x6.02x10^23)/20 = 2.19x10^25 atoms

4 0
2 years ago
1. look at the sequence of pictures what happened to the Apple overtime. 2. no chemical was added to the Apple explain why the A
Goshia [24]

Answer: it started too rot over time mold over time and decay and if you cooked a apple it would melt like ice cream cause of the heat waves and if the apple is surrounded by air i think what would happen it would still rot I guess but i wouldnt know for sure cause things with air take time too rot and things with air rot faster and slicing the apple into more pieces would make it decay or rot or mold faster cause its open and accepting everything it sees like bacteria bugs all that

Explanation: like the longer a apple is left half open it starts too rot then mold over time getting all bad and not good too eat or decay

read it all the stuff is in there i think

8 0
2 years ago
The density of gold is 19.3 the density of iron pyrite is 5.0 if a nugget of iron pyrite and a nugget of gold each have a mass o
exis [7]
Density equals mas divided by volume. You know the density and mass so use it to solve for the volume.

d= m/v
d= 19.3 g/mL
m= 50g
v=?

Plug it in.    19.3= 50/v

To solve for v you do the opposite of 50 divided by v which is 50 time v.
That cancels v from the right side of the equation.  Do the same on the other side(times v)
19.3 * v=50

Now just divide both sides by 19.3 to get v alone.

7 0
3 years ago
A pharmacist wishes to mix a solution that is 5% Minoxidil. She has on hand 80 ml of a 4% solution and wishes to add some 7% sol
Alona [7]
<span>The 80 ml solution has (.04)(80) ml of the medicine, or 3.3 ml of medicine.The pharmacist adds V ml of 7% solution, or .07V ml of medicine. The total amoune of medicine is (.07V + 3.2) mg. The total volume of solution is (V + 80) ml, so (.07V + 3.2) / (V + 80) = .05. Solve for V.</span>
6 0
3 years ago
Read 2 more answers
Given a stock solution of 0.128 m bromide, solve for the bromide concentration obtained by diluting a 450 µl aliquot to the mark
Vikki [24]

Hey there!

Stock solution:

Concentracion bromide = 0.128 M

initial solution in volumetric flask =  450 µl

So , moles of bromide present:

450  µl in liters :

1 µl  =   = 1*10⁻⁶ liters

450 * ( 1*10⁻⁶ )  = 0.00045

0.128 * 0.00045 =>  57.6 * 10⁻⁶ moles

Now volume final is 25 mL , in liters : 0.025 L ou 25*10⁻³

so  new  bromide concentration:

57.6*10⁻⁶ / 25*10⁻³=> 2.304*10⁻³ M

4 0
3 years ago
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