Please help me figure this question out I’ll mark you brainiest. The balanced equation would be 2Na + 2Cl = 2NaCl. Hope that helps ya solve it.

Answer:

Evaporating the solvent

Explanation:

Answer:

1mpm(1 meters per minute) Explanation: Speed:Distance/time 25/25=1 plz mark as brainliest

Answer:

1mpm(1 meters per minute)

Answer:

The molarity is 8.52M

Explanation:

molality = moles of solute/kg of solvent = 5.2mol/kg

moles of solute = 5.2mole

mass of solute = moles of solute × MW = 5.2 × 56.106 = 291.8g

mass of solvent = 1kg = 1000g

Mass of solution = mass of solute + mass of solvent = 291.8g + 1000g = 1291.8g

Density of KOH = 2120g/L

Volume of solution = mass/density = 1291.8/2120 = 0.61L

Molarity = number of moles of solute/volume of solution = 5.2/0.61 = 8.52M

The concentration in the solution is 1.94 mol/L

From the question,

We are to determine the concentration of 10 moles of potassium hydroxide in 5.16 L of solution.

From the formula

Number of moles = Concentration × Volume

Then, we can write that

[tex]Concentration = \frac{Number\ of\ moles}{Volume}[/tex]

From the question,

Number of moles of potassium hydroxide (KOH) = 10 moles

Volume of solution = 5.16 L

∴ Concentration of the solution = [tex]\frac{10}{5.16}[/tex]

Concentration of the solution = 1.94 mol/L

Hence, the concentration in the solution is 1.94 mol/L

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Here is the complete question:

Calculate the concentration in each of the following solutions:

1. 10 moles of potassium hydroxide in 5.16 L of solution

Answer:

pH=2

Explanation:

-log(1 x 10-2)=2

Answer:

D

Explanation:

First you multiply 4.65 with 21.82 to get the mols of hcl, which is 101.463. Then you make an ice table. The ice table should look like this:

HCl       +  NaOH     =  12NaCl + H2O

101.463   6.022e23   1.989e30

As the ice table above shows, you will have 1.989e30 mols of nacl after the reaction. With that information, you can then divide it by 2.833333333333333e30 to get 0.702 M.

Answer:

they regulate the amount of water in the body.

Explanation:

The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

[tex]\large \mathfrak{Solution : }[/tex]

volume = 12 ml = 0.012 litres = 0.012 cm³

mass = 6 g

And the relationship between mass, volume and density can be depicted by :

therefore, density = 500 g/cm³

Answer:

15

Explanation:

because since the outer shell has 5 electron then add 5 and 10 to get 15

Answer:

it's the third

Explanation:

I need to fill 20 spaces. don't mind that

Answer:

Na gains two protons from Cl.

Explanation:

this should help

Answer:

can anyone tell me how to get +7!67:$'!$

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

Answer:

the Ph is

Explanation:

90rn hub

Lithium is atomic number 3, so it has valency 1

While, Bromine is atomic number 35, and has valency 1

Lithium has an extra electron while Bromine need an electron, since they both need and have one electron, the form

LiBr (Lithium Bromide) where Li is +ve charged and Br is -ve charged

Happy to help :)

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.!

Explanation:

Answer:

The sun.

Explanation:

Sun is the ultimate source of energy. All living things on the earth using the energy comes from the sunlight.

Plants using sunlight to fuel the process of photosynthesis. Photosynthesis is the process of transforming of water and carbon dioxide to oxygen and glucose. The amount of energy used to drive the photosynthesis process is stored in the glucose molecules.

Organism feed on plants and breaking down the glucose molecules to release the stored energy. The release energy is utilized by the cells present in the organisms.

Autotrophs also have the ability to make their own food, so they are also using the energy from the sun to make their food.

Answer:

Explanation:

It is volume-volume problems that does not require the use of molar mass.

Answer:boron

Explanation:

Answer:

b

Explanation: because i took the test and got a 100

Answer:

Rewrite the following sentence in reported speech

The chair person said,"A hearty welcome to all present!"

Answer:

2 ×10^-3

Explanation:

pH + pOH = 14

pOH = 14-11.3 = 2.7

[OH-] = 10^-pOH = 10^-2.7 = 2×10^-3 M

Answer:

A Bacteria

Explanation: