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8_murik_8 [283]
3 years ago
14

Compare the electric repulsion of the protons in the uranium nucleus (element 92) with the repulsion of the protons in the nucle

us of barium (element 56).Which repulsion is larger?
Chemistry
1 answer:
maxonik [38]3 years ago
5 0

Answer:

uranium nucleus

Explanation:

The charge on protons is positive. Hence repulsion is to be expected between the like charges.

The magnitude of repulsion between protons increases with the number of protons present in the nucleus.

Uranium possess 92 protons while barium possess only 56 protons. Hence uranium having a larger number of protons will experience a larger repulsion in its nucleus compared to barium.

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A phase change from Gas to liquid means that it was cold outside and so the molecules went from being very free moving to forming bonds with one another due to the cold.
4 0
3 years ago
How many grams of calcium chloride are required to make 20 grams of calcium hydroxide? CaCl2 + 2 NaOH → Ca(OH)2 + 2 NaCl
KatRina [158]

Answer:

30.0g CaCl2

Explanation:

20.0g Ca(OH)2=0.270mol

(0.270mol)(111.0g/mol)=30.0g CaCl2

6 0
3 years ago
Convert 55 m3 to liters
luda_lava [24]

Explanation:

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4 0
2 years ago
Determine the mass of chloride (MW = 35.45 g/mol ) in grams present in 100 mL of a 0.273 M solution of aqueous FeCl₃ (iron(III)
Naily [24]

Answer:

The mass chloride is 2.903 grams

Explanation:

Step1: calculate the moles of FeCl3

moles = molarity  x  volume  in liters

volume in liters = 100 ml /1000 =  0.1 L

molarity = 0.273  M  =  0.273  mol / L

moles   =   0.273  mol /L  x 0.1 L = 0.0273   moles

step 2:  find the moles of Cl

since there is  3  atoms of  cl in FeCl3

= 3 x 0.0273 =0.0819 moles

Step 3:  calculate  mass  of cl

 mass= moles  x molar mass

=0.0819 moles x 35.45 g/mol = 2.903 g

7 0
3 years ago
Science 5th grade very PLZ answer correctly TYSM WILL MARK AS BRAINLIST IF ANSWERED TODAY!
Vikki [24]

Answer:

A

Explanation:

Conducts electricity:

-Steel

-Gold

-Copper

-Aluminum

Does not conduct electricity:

-Plastic

-Glass

-Rubber

-Wood

Metallic bonding causes metals to conduct electricity. Some metals are more highly conductive than others.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
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