1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
2 years ago
13

I really need to know the answer it will help

Chemistry
2 answers:
iogann1982 [59]2 years ago
3 0

Answer:

Answer: 5.199 moles

Explanation: Please can I have brainliest

Paladinen [302]2 years ago
3 0

Answer:

so the answer is A 5.199mol please. rate. me brainliest. if its. correct

Explanation:

N=nL

3.131 \times  {10}^{24} = n \times 6.022 \times  {10}^{23}  \\n =   \frac{3.131 \times  {10}^{24} }{6.022 \times  {10}^{23} }  \\ n = 5.199mol

You might be interested in
Pls solve<br>question attached as image<br>​
patriot [66]

Answer:

a) formula for citric acid is - C6 H8 o7

b) lime water turns opaque after adding co2 due to the formation of calcium carbonate.

c) reaction 3 is displacement reaction where a high reactive metal displace a less reactive from its salt solution.

d) reaction 1) is combination reaction where two reactant combines to give a single product whereas reaction 2) is decomposition reaction where a single reactant splits into more that 1 products.

8 0
2 years ago
(9) Which is true from the following ?
fredd [130]

Answer:

The correct answer is A and D.

Explanation:

Please I want brainliest.

Reason:

The size of the ions follows the order:

Negatively charged ion > Neutral atom >

Positively charged ion

This is because of the size of ions increases when the electrons are added to the outermost shell of an atom.

This happens due to the increase in

electron-electron repulsion.

Moreover, when the electrons are removed from an atom, then the affective nuclear charge that is experienced by the outermost electron increases.

Thus the size of the positively charged ion is least.

4 0
2 years ago
What is the mole fraction of water in pure water
irinina [24]
In pure water, all of the molecules in the liquid are water molecules so the mole fraction is 1 (100 % H2O, 55 mol/L). In sea water, the concentration of water molecules in the solution is less than that of pure water so the vapor pressure of sea water is also lower.
5 0
3 years ago
What are three (3) rights workers have in the workplace?
Jobisdone [24]

Answer:

The right to refuse work that could affect their health and safety and that of others.

8 0
2 years ago
Which one of the following represents a decrease in entropy?
Leni [432]

Answer:

D

Explanation:

There are principally three states of matter. These are the solid, liquid and gaseous states. The gaseous state has the highest degree of disorderliness as gas particles can move randomly while the solid state has the highest level of compactness.

Hence, we need to be adequately fed with information as regards the phase change to know if entropy has decreased or increased.

A. is wrong

Evaporation is a change of state to the gaseous state meaning there is an increased entropy.

B. is wrong

Sublimation is a change of state which means a solid substance like iodine or naphthalene changes its state directly to the gaseous state. There is an increased entropy here too.

C is wrong

Melting of ice means going from ice block to liquid water. This is synonymous to going from the solid state to the liquid state which is an increased entropy

D is correct

Condensation involves going from the gaseous state to the liquid state. This means going from a less ordered state to a more ordered state. This is accompanied by an entropy decrease.

E is wrong

While there are some processes that increase entropy, we also have some process that decrease entropy.

7 0
2 years ago
Other questions:
  • Which element will be more reactive - Mg (magnesium) OR Se (Selenium)? *
    10·1 answer
  • EMERGENCY WILL MARK BRAINLIEST JUST PLS HELP!!!
    6·1 answer
  • Which liquid has the highest vapor pressure
    13·1 answer
  • The electron cloud is the predicted location for
    9·1 answer
  • Josh drives her scooter 7 km north. she stops for lunch and then drives 5 km east. what distance does she cover? what was her di
    5·1 answer
  • A sodium ion, Na+, with a charge of 1.6×10−19C and a chloride ion, Cl− , with charge of −1.6×10−19C, are separated by a distance
    5·1 answer
  • Which step accurately describes how to measure the final burette volume?
    11·2 answers
  • When salt dissolves in water:
    7·1 answer
  • Which list was easier to sort
    14·1 answer
  • What is the balanced equation for the synthesis reaction that combines sulfur and oxygen to create sulfur trioxide?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!