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Hitman42 [59]
3 years ago
7

28. The IUPAC name for OH is

Chemistry
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

A

Explanation:

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How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side
djverab [1.8K]
I think you refer to  Rutherford's Gold Foil Experiment alpha particles pass through because of the enormous amount of empty space inside the atom. 


>>>more details here<<<
to have its trajectory affected the alpha particle has to pass "near" the nucleus to interact with the positive charge of the nucleus.
the fact is that internally the gold atoms are basically empty space and the nucleus represents only a small portion of the entire volume. only few alpha particles pass near the nucleus 

picture added><><**><>< below}{<{>} 
-gio-chealafi- hope this helps you, have a nice rest of the day. ily all!!

8 0
3 years ago
How many molecules of he are contained in a 10.0 l tank at 7.53 atm and 485 k?
ankoles [38]

Answer:

1.126 x 10^22

Explanation:

pV = nRT

7.53 x 10 = n x 8.31 x 485

n = (7.53 x 10) / (8.31 x 485) = 0.0187 moles

M = n x Avogadros number

0.0187 x 6.02 x 10^23 = 1.126 x 10^22

4 0
3 years ago
Sample of 76 G of NaCl is dissolved to make 1 L of a solution what is the molarity of the solution
natima [27]
Molarity =  Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl



6 0
3 years ago
Read 2 more answers
Help please !!!
castortr0y [4]
Kinetic energy is the correct answer for this question
4 0
3 years ago
What does it mean if an experiment is replicable ? Why is it important that experiment be replicable
Murljashka [212]

Answer:

When an experiment is replicanle it means it is able to be done again.

Explanation:

It is important because You need to see if you get different results or if you messed up the first time

3 0
3 years ago
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