Molarity is measured in
A.) moles per mL

B.)moles per kJ

C.)moles per kg

D.)moles per L

Answers

Answer 1
answer D moles per L

Related Questions

In this chemical equation which of the following identifies the reactant(s)?

Answers

Answer:

2na+o2

Pls mark as brainliest

Answer:

A

Explanation:

2NA + 02

These are your reactants, which are always on the left side of the chemical equation.

hope this helped mark brainliest pls xx

Based on what you have read about wind turbines and dams, how does a generator work? A loop of Answer spins in a Answer field, producing Answer current. Item

Answers

Based on what you have read about wind turbines and dams, how does a generator work? A loop of ______ spins in a ______ field, producing ______ current.

Answer:

Wire

Magnetic

Electric

Explanation:

The generator works on the principle of converting mechanical energy into electrical energy.

For example in a wind turbine generator, the mechanical energy is the wind that pushes the blades of the turbine directly that leads to conversion of this it's linear motion to the rotary motion required to make rotor of the generator to spin. Finally, the harder the wind pushes, the more the mechanical energy applied and consequently, the more electrical energy can be generated.

Now, all generators work because of the effect of the magnetic field moving past an electrical coil.

Thus, the movement of a magnet across a single loop of wire produces a voltage that is induced within the wire loop as a result of the magnetic field produced by the magnet.

As a voltage is induced across the wire loop, electrons begin to flow around the loop thereby generating electric current.

Which of the following is true of reproduction? ​

Answers

Answer:

none

Explanation:

Answer:

None of them?

Explanation:

A student asks why the ashes from a fire have much lower mass than the wood that was burned. Which of the following is the correct answer to the student's question?

Answers

Answer:

It have lower mass because much of the ashes came from the burned wood. (ashes were like little parts of the wood). plus most of the fuel was turned in to fire (light and heat energy) so yeah ash is just the left over.

Explanation:

Radioactivity is the -------------- disintegration of an atomic nucleus that releases energy to become stable *

a. Extraordinary

b. Normal

c. Ordinary

d. Spontaneous​

Answers

Spontaneous, as it happens randomly

Answer:

The answer is spontaneous.

I need more help on the other chart please
Calculating pH
see chart below

Answers

Answer:

2, acidic, 5, acidic

Explanation:

pH = -log[H+], where [H+] is the concentration of H+.

Using the data in the table, you can calculate the pH:

-log[1e-2] = 2

-log[1e-5] = 5

To find out whether it is acidic, basic, or neutral, use a pH scale. Anything less than 7 is acidic, anything over is basic. Knowing this, both (except the middle, which you did correctly) are acidic.

;)

Solve for final product and show work for Na + NO3 ?

Answers

Sodium (Na) is atomic number 11, so it has 1 valency

While Nitrate (NO₃) has valency 1

Sodium has an extra electron while nitrate needs an extra electron, sodium gives its electron to nitrate and forms a bond,

NaNO₃ (Sodium nitrate)

Happy to help :)

Ture or False: air has its components spread evenly, so it is considered a homogenous mixture.

Answers

Answer:

True.

Explanation:

The composition of a mixture is varied by altering the proportions of its constituents. True. Solutions are heterogeneous since the ratio of solute to solvent does not remain the same throughout the solution.

The balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Li2CO3 and CaCl2 are mixed is

Answers

Answer:

Li2CO3+CaCl2=CaCO3+LiCl

6. Choose a pair of words to make the statement correct. Energy transfers from
substances to ___substances.
A. cold to hot
B. hot to cold
C. hot to hot
D. cold to cold

Answers

Answer:

B. hot to cold

Explanation:

Energy wants to reach thermal equilibrium (which is basically just balanced temperature) so it will move from hot to cold to make the cold object warmer and the hot object cooler.

What causes circulation of air

Answers

The circulation of wind in the atmosphere is driven by the rotation of the earth and the incoming energy from the sun. Wind circulates in each hemisphere in three distinct cells which help transport energy and heat from the equator to the poles. The winds are driven by the energy from the sun at the surface as warm air rises and colder air sinks.

Answer: The circulation of wind in the atmosphere is driven by the rotation of the earth and the incoming energy from the sun. Wind circulates in each hemisphere in three distinct cells which help transport energy and heat from the equator to the poles.

Explanation:

Sodium chloride, NaCl, can be used to melt snow. How many moles of sodium chloride are in a 10 kg bag?

Answers

Answer:

171 moles of sodium chloride

Explanation:

Number of moles = mass/molar mass

Molar mass of sodium chloride = 58.5 g/mol

mass of sodium chloride = 10 Kg or 10,000 g

Now, to obtain the number of moles of sodium chloride;

Number of moles = 10,000 g/58.5 g/mol

Number of moles = 171 moles of sodium chloride

A homogenerous mixture is a mixture where you can see the different parts.
True
or
False

Answers

Answer:

the nwser is false

Explanation:

Its false becuase Homomogeneous means "One" and if you can see different parts of it then its not homogeneous. hope this helps!

When no more solute can dissolve a solution is described as...

Answers

Answer:

Saturated solution

Explanation:

When is no more solute can be added then it is saturated solution

When no more solute can dissolve a solution is described as
SATURATED SOLUTION

hope it helps

can anyone help me with the last question.
it whould help me a ton

Answers

For the very last question you would first divide 8,900 by 12 and the number you get will be the answer. You should get 741.66

A bag contains 3 red marbles, 3 blue marbles and 1 green if a marble is drawing from the bag at random what is the chance of the marble being blue

Answers

Answer:

three-seventh

Explanation:

I need c and d pleaseeee!!

Answers

Answer: yes

Explanation: cuz i know lol

21. What is an electron energy level?

Answers

Electron is negative
Proton is positive
Neutron is just nothing really

The heart, arteries, and veins are all part of what body system?

Answers

Answer:

The circulatory system.

Explanation:

All of them are in charge of pumping blood and oxygen throughout the body, which is the job of the circulatory system.

True or Flase: dissolving salt in distilled water creates a homogeneous mixture.

Answers

Answer:

true

Explanation:

Answer:

true

Explanation:

because the dissolved salt is evenly distributed throughout

C + O2 + CO2
What type of reaction occurs when carbon dioxide is formed from carbon and oxygen?

Answers

Answer:

combustion reaction.

Explanation:

It is a combination reaction as carbon combines with oxygen to form carbon dioxide. It is a combustion reaction as carbon is burnt in the presence of oxygen.

Why do organic materials decompose so slowly inside of a landfill? List 3 factorsthat are required for biodegradation

Answers

Answer:

The more organic waste present in a landfill, the more landfill gas is produced by bacterial decomposition. Some types of organic waste contain nutrients, such as sodium, potassium, calcium, and magnesium, that help bacteria thrive. When these nutrients are present, landfill

Explanation:

how are heat, temperature, and thermal energy related?​

Answers

Answer:

Heat, temperature, and thermal energy are related because they all work with each other.

Explanation:

First of all, everything start's off with temperature. It starts off low. But when heat is added to it, it rises and the temperature goes up. This causes thermal energy to the objects touching it. The hotter it is the faster the particles move and the more kinetic energy they have.  

Sulfuric acid reacts with aluminum hydroxide by double replacement producing aluminum sulfate and water Write chemical reaction. If 30 g of sulfuric acid reacts with 25 g of aluminum hydroxide, identify the limiting reactant?

Answers

Answer: [tex]H_2SO_4[/tex] is the limiting reagent.

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.  

The balanced chemical equation is:

[tex]3H_2SO_4(aq)+2Al(OH)_3(aq)\rightarrow Al_2(SO_4)_3(aq)+6H_2O(l)[/tex]

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} H_2SO_4 =\frac{30g}{98g/mol}=0.31moles[/tex]

[tex]\text{Moles of} Al(OH)_3=\frac{25g}{78g/mol}=0.32moles[/tex]  

According to stoichiometry :

3 moles of [tex]H_2SO_4[/tex] require = 2 moles of [tex]Al(OH)_3[/tex]

Thus 0.31 moles of [tex]H_2SO_4[/tex] will require=[tex]\frac{2}{3}\times 0.31=0.21moles[/tex]  of [tex]Al(OH)_3[/tex]

Thus [tex]H_2SO_4[/tex] is the limiting reagent as it limits the formation of product and [tex]Al(OH)_3[/tex] is the excess reagent.

A gas occupies occupies a volume of 0.2 L at 76 mmHg. What volume will the gas occupy at 760 mmHg?

Answers

Answer:

0.02

Explanation:

To solve this problem we use the Boyle's law equation

P1V1 = P2V2

P1 = 76mmHg

V1 = 0.2L

P2 = 760mmHg

V2 = unknown

Substituting values into the equation;

76mmHg * 0.2L = 760mmHg * v2

15.2 = 760V2

Divide through by 760 to get v2

15.2/760 = 0.02

So the gas will occupy a volume of 0.02 at 760mmHg

Gold can be pounded out to make a foil only a few atoms thick because of
A. Metallic Bonds
B. Ionic Bonds
C. Valence Bonds
D. Covalent Bonds

Answers

Answer:

A. Metallic Bonds

Explanation:

Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

Which led to the formation of oceans after water on Earth’s surface evaporated?

Answers

Answer:

Explanation:

En tiempos de la formación de la Tierra, el planeta se encontraba a una elevada temperatura, por lo que no le resultaba posible retener ningún tipo de atmósfera. La ausencia de nubes de vapor de agua y océanos en la tierra primigenia era causa directa de su temperatura, ya que el agua se encontraba combinada con los materiales rocosos.

The sun released a strong burst of water vapor. As Earth cooled, water in the atmosphere condensed.

what caused light to appear bent when it refracts ?

Answers

Answer:

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. ... When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.

Answer: I think C. When light enters a different medium, it travels at a different speed.

Explanation: sorry if I’m wrong!

What would happen to the position of the equilibrium when the following
changes are made to the equilibrium system below?
250 (8) - 250_(g) + O2(g)
Sulfur trioxide is removed from the system.

A. Shifts Left
B.Shifts Right

Answers

A because when it removes it shifts left
The answer will most likely be a .
Hopefully it’s right .

100 cm3 of the copper sulfate solution contains 1.8 g of copper sulfate.
Calculate the mass of copper sulfate in 25 cm of this copper sulfate solution.

Answers

Answer:

The mass of copper sulfate in 25 cm³ of the copper sulfate solution is 0.45 g

Explanation:

The given parameters are;

The volume of the copper sulfate solution = 100 cm³

The mass of the copper sulfate in the solution = 1.8 g

Therefore, the mass of copper sulfate in 25 cm³ of the solution is given as follows;

The mass of copper sulfate in 100 cm³ of the solution = 1.8 g

The mass of copper sulfate in 1 cm³ of the solution  = 1.8 g/100 = 0.018 g

Therefore;

The mass of copper sulfate in 25 × 1 = 25 cm³ of the solution, m  = 25×0.018 g = 0.45 g

∴ The mass of copper sulfate in 25 cm³ of the solution, m = 0.45 g

Other Questions
Find the surface areaWill give brainliest to first answer!!!! A businessperson is setting up a new automatic car wash and is choosing between two fully automated machines. The first machine can process up to 2,000 cars per month at a marginal cost of $1 per car. The second machine can also process up to 2,000 cars per month but at a marginal cost of $0.50 per car. The monthly lease for the machine with the higher marginal cost is $1,200. The monthly lease for the machine with the lower marginal cost is $1,590 The car wash can sell car washes for $8 per car. 1. Suppose the businessperson chooses to lease the machine with the higher marginal cost for the first month and does indeed wash 2,000 cars that month. The businessperson earned profits of____________ $ in the first month. 2. Suppose now the businessperson chooses to lease the machine with the lower marginal cost for the second month and again washes 2,000 cars that month. The businessperson earned profits of __________$ in the second month. 3. The car wash would have to wash ____________cars or more per month in order to justify paying the higher-priced machine lease. When identifying the speaker's supporting points, it is important to examine his or her perspective. What is the term for the perspective from which the account is told?point of viewthemetonemood Where should a photographer place lights for a headshot? Headshot lighting is more important with darker backgrounds. The light should be at a 45-degree angle from the subject. The light should be in front of the subject. The third light should be the subject to form a ring of light around the subjects hair. Which option was a disadvantage to urbanization during the time of "Big Business"?lack of communitypoor sanitationlack of transportationfew job opportunities 5x-2y=44 and x=-4y solve for x In the early spring of 1940, the US military faced a seemingly insurmountable task. 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