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Julli [10]
3 years ago
7

Certain "rules" of chemistry are used to simplify concepts when in fact sometimes these rules are often "broken." Place the prop

er word into each sentence illustrating some of these exceptions.

Chemistry
1 answer:
True [87]3 years ago
4 0

Answer:

The question is incomplete but this is the complete question in picture format.

Explanation:

1. An ION is the violation of the rule that suggests that electron and proton will be equal in number for each atom.

2. An ISOTOPE violates the rule that number of neutrons always equals the number of protons.

3. The original term ELEMENT meant to be indivisible, a term that doesn't consider the modern understanding of atom splitting and radioactive decay.

4. Often depicted with a central nucleus with concentric rings housing electrons, the ORBITAL models incorrectly conveys the idea that electrons rotate around the nucleus in a predictable orderly fashion.

5. The large number of naturally existing isotopes violate the rule that adding the number of neutrons and protons will yield and accurate ATOMIC weight.

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What element has the following electron configuration? 1s 22s 22p 63s 23p 64s 2
s2008m [1.1K]

Answer:

answer is D

Explanation:

3 0
3 years ago
What is the mole ratio between oxygen and carbon dioxide?<br><br> C25H52 + 38 O2 → 25 CO2 + 26 H2O
user100 [1]

Answer:

38 : 25

Explanation:

First thing's first, we have to confirm if the reaction is indeed balanced.

The equation of the reaction is given as;

C25H52 + 38 O2 → 25 CO2 + 26 H2O

From the reaction, 38 moles of O2 produces 25 moles of CO2

The ratio is given as;

38 : 25

4 0
3 years ago
Consider the titration of sulfuric acid with sodium hydroxide. What volume (mL) of a 2.658M NaOH solution is required to fully t
KatRina [158]

The volume of base required to completely neutralize the acid is 3.2 mL of NaOH.

The equation of the reaction is;

2NaOH(aq) + H2SO4(aq) -----> Na2SO4(aq) + 2H2O(l)

From the question;

Concentration of acid CA = 0.426M

Concentration of base  CB = 2.658M

Volume of acid VA = 10.00mL

Volume of base VB = ?

Number of moles of acid NA = 1

Number of moles of base NB = 2

Using the relation;

CAVA/CBVB = NA/NB

CAVANB = CBVBNA

VB = CAVANB/CBNA

VB =  0.426M × 10.00mL × 2/ 2.658M × 1

VB = 3.2 mL

Learn more: brainly.com/question/6111443

8 0
2 years ago
I need help with my chemistry homework please &amp; thank u
lisov135 [29]

Answer:

6) solid- dots close together

liquid- a little bit farther apart than solid

gas- far apart

7) the movement of anything from a higher area of concentration to an area of lower concentration.

8) B. evaporation

9) The solute is the thing being dissolved, the solvent is the thing dissolving it, and the solution is the product of the solute and solvent.

10) D. regular brewed coffee

*I'm not exactly sure on #10 but I hope I could've helped a little at least

5 0
3 years ago
What is the mass of 4.56 moles of copper (ii) fluoride​
musickatia [10]

Answer:

463.0 g.

Explanation:

  • We can use the following relation:

<em>n = mass/molar mass.</em>

where, n is the mass of copper(ii) fluoride​ (m = 4.56 mol),

mass of copper(ii) fluoride​ = ??? g.

molar mass of copper(ii) fluoride​ = 101.543 g/mol.

∴ mass of copper(ii) fluoride​ = (n)(molar mass) = (4.56 mol)(101.543 g/mol) = 463.0 g.

7 0
2 years ago
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