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aksik [14]
3 years ago
9

Help me cuz it's due in 5 minutes!!!! ​

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
6 0
115 is the correct answers for your questions
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What is the fraction of the hydrogen atom's volume that is occupied by the nucleus? the bohr radius is 0.529×10−10m?
Arturiano [62]

Volume of a sphere = 4/3 x pi x r^3

When put a fraction of volume constant 4/3 x pi cancels out.

So only cube of radii remains.

Radius of proton = 10^-15 m (Fact; remember it)

Radius of total Hydrogen atom = 0.529 × 10^−10 m

Fraction of Volumes : R'^3/R^3 = (R/R)^3

Fraction = ((10^-15)/(0.529 × 10^−10m.))^3= (1/52900)^3 =

6.755 x 10^-15

6 0
3 years ago
What is Equilibrium? I’m a little confused on the topic. You’ll get a lot of points if you answer I think.
AleksAgata [21]

Answer:

to put it simply, equilibrium is when two opposing forces balance each other out. one example is boats: you know how the bottom half is curved, and then meets at an edge? they design it like that because of water displacement. by gravity, the water wants to go back to the area taken by the boats mass (the parts where it has sunken into the water), thus preventing the boat from sinking. once the boat is removed, the water returns to the space. most liquids take form of their container.

8 0
3 years ago
ethanol has a density of 0.789 g/cm3, how many pounds of ethanol would be in a drum containing 7.0 gallons of ethanol
max2010maxim [7]

From the density of ethanol given, the number of pounds of ethanol in the drum will be 46.099 pounds.

<h3>How to calculate density</h3>

Density of ethanol = 0.789/cm³

1 gallon = 3785.4ml

Volume of ethanol = 7 gallons = 7 × 3785.4ml = 26497.8ml

Mass of ethanol = Volume × Density.

= 26497.8 × 0.789

= 20906.764g

Since 1g = 0.002205 pounds, the mass of ethanol will be:

= 20906.764 × 0.002205

= 46.099 pounds.

Learn more about density on:

brainly.com/question/11730603

5 0
2 years ago
What type of blood goes to the right side of the heart​
Anastasy [175]

Deoxygenated Blood enters and leaves the right side of the heart then Oxygenated blood enters and leaves the left side of the heart

5 0
3 years ago
Read 2 more answers
How many grams of Sodium metal are required to completely react with 100 g of Magnesium chloride hexahydrate in a single replace
slava [35]

Answer:

MgCl2 - 6H2O

203.3 mol

MgCl2 + 2Na = 2NaCl + Mg

22.6g

Explanation:

1. Write the formula of hydrate and find molar mass.

2. Write a balanced single replacement (don't include H2O)

3. Do the given/wanted calculation (include H2O in molar mass of given)

6 0
3 years ago
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