Does solubility have any unit? Answer properly​

Answer:

Glucose

Explanation:

Photosynthesis is the process of the transformation of the light energy from the Sun into stored chemical energy that can serves as the major source of energy in the food chain

The overall chemical equation for photosynthesis reaction can be presented as follows;

6CO₂(g) + 12H₂O(l) + Light Energy → C₆H₁₂O₆ + 6O₂ + 6H₂O

During cellular respiration, the energy in the glucose, C₆H₁₂O₆, is converted to energy stored in Adenosine Triphosphate (ATP) molecules which are released when the the ATP is converted into Adenosine Diphosphate (ADP)

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy containing ATP

Answer:

the Mantle

Explanation:

Answer:

Molten lava

Explanation:

I'm learning the same thing :)

Answer:

В.  No, because the mass of the reactants is less than the mass of the products.

Explanation:

Chemical equation:

NaBr + Cl₂      →      2NaCl + Br₂

The given equation is not balanced because number of moles of sodium and bromine atoms are less on reactant side while more on the product side.

There are one mole of sodium and one mole of bromine atom on left side of equation while on right side there are 2 moles of bromine and 2 moles of sodium atom are present. The number of moles of chlorine atoms are balanced.

Balanced chemical equation:

2NaBr + Cl₂      →      2NaCl + Br₂

Now equation is balanced. Number of moles of sodium , chlorine and bromine atoms are equal on both side.

Answer:

See explanation

Explanation:

Substances are composed of atoms. The combination of atoms in a substance determines the properties that the substance exhibits.

For instance, if atoms of metals and nonmetals combine, they give rise to ionic substance which are mostly solid and have high melting and boiling points.

On the other hand, atoms of nonmetals combine with each other to form covalent substances having low melting and boiling points and high vapour pressure sometimes.

Similarly, the kind of molecules present in a substance also determine the nature of the substance. For instance, the high boiling point of water is attributed to the polarity of the O-H bond. This explains why it has a much higher boiling point than CH4 of  comparable molar mass but is a non-polar molecule.

Answer:

im not sure but i do know you have to look under 5.2

Explanation:

Answer:

It is not true that this is an example of a chemical reaction. This is a typical example of physical reaction.

Most physical changes are often phase changes.

A phase change is a change in the physical state of a body.

In this change, it is from solid to liquid.

Now new substances are formed.

When substances are changed from one form to another, it is a physical change.

In a chemical change, a new substance is formed at the end of the process.

Explanation:

yess of course

if you study the steps of melting the iron and makes the ores pure, you will know that there's many reaction happen to convert to wires

Answer:

Ketone

Explanation:

According to the description of the functional group attached to the hydrocarbon - the first and last of a chain of three carbons are each single bonded to 3 hydrogen (H)atoms; the center carbon is double bonded to an oxygen atom, O - it can be deduced that the functional group is a ketone group.

A ketone is a functional group with the structure R₂-C=O, where the two R are  alkyl or phenyl groups which may be the same or different. The carbon in a double covalent bond with oxygen is called the carbonyl carbon. The two R groups are bonded to the carbonyl carbon in single covalent bonds.

In the hydrocarbon in this question, the two R groups are methyl groups, CH₃ bonded to the carbonyl carbon. The name of the hydrocarbon is propanone and it is a ketone molecule.

Answer:

Ketone

Explanation:

Answer: B

Explanation:

A box rests motionless on the ground. A student is pushing the box to the left with a force of 5 newtons. The force of friction opposes the student's force with a magnitude of 2 newtons in which direction and with It will move left at an increasing speed  will the box move.

speed is defined as the rate at which the position of an object changes in any direction. Speed ​​is measured as the ratio of distance travelled to time. Speed ​​is a scalar quantity because it only has direction and not magnitude.

The mathematical representation of speed is as follows: s = d/t

s is the speed in m.s-1

d is the distance travelled in meters

t is the time in seconds

There are four types of speeds and they are:

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Answer:

The pennies represent the particles of the isotope either decaying, or staying the same after each shake.  This is a random process.  

In this lab, the pennies represent the nuclei of radioactive substances

Radioactive substances are the unstable substances as they ahve unstable nuclei and will attain stability after the decay of nuclei in the form of emission of alpha, beta or gamma rays.

In the given lab report, the word pennies is used to represent the nuclei of radioactive substances which undergo radioactive decay or remain same.

Hence pennies is used to represent radioactive substances.

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Reaction type : Double-Replacement reactions

Given

Reaction

MgCl2 + Li2CO3 → MgCO3 + LiCl

Required

Balanced equation

Reaction type

Solution

Balanced equation

Li2CO3 (s) + MgCl2 (aq) → MgCO3 (s) + 2 LiCl (aq)

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product  

To predict whether this reaction can occur or not is one of them, the precipitation reaction.

MgCO3 is a precipitation compound

Answer:

there is no limiting reactant.

Explanation:

Given that:

CaF₂  +  Br₂  ----->     CaBr₂  + F₂

From the above equation;

We can see that there is an equal number of moles in the reactant side of the equation.

i.e.

one mole of CaF₂  reacts with one mole of Br₂.

Thus, there is no limiting reactant.

There will be no limiting reactants as the chemical equation has the reactant totally consumed and thus leading to no reactants.

We can see that there's an identical range of moles withinside the reactant aspect of the equation

It is the substance that gets into the chemical reaction.

Thus, there's no proscribing reactant.

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Answer:

Ok to solve this you will need to use the Ideal Gas Law Formula which is as follows:

PV = nRT

P= pressure

V= volume

n= # of moles

R= Universal Gas Constant (0.0821 L x atm/mol x K)

T= Kelvin temperature

1.Simplify the Ideal Gas Law formula to what you need to solve for:

P = (nRT)/ V

2. List all you components as follows (this makes the process easier):

P = ?

V = 45.4 L

n = 0.625 mol

R = 0.0821 L x atm/ mol x K

T = 249 K

To find the Kelvin temperature K = C + 273

3. Plug in all your components in your set up formula:

P = [(0.625 mol)(0.0821 L x atm/ mol x K)(249 K)] / (45.4 L)

4. Cross out all similar units so the only thing left is atm because you are trying to find pressure.

P = [(0.625)(0.0821atm)(249)] / (45.4)

5. Multiply through and simplify

P = 0.28 atm

B. is the correct answer.

Glad I could help!! If you have any other questions just message me. Hopefully this was helpful.

Explanation:

The volume of CO= 2.912 L

Given

Dehydration of 6 g of methanoic acid with H2SO4

Required

The volume of CO

Solution

Reaction

HCOOH  ⇒​  CO+H₂O

MW = 1.Ar C+2.Ar H+2.Ar O

MW = 1.12+2.1+2.16

MW= 46 g/mol

mol = mass : MW

mol = 6 g : 46 g/mol

mol = 0.13

From equation, mol ratio HCOOH  : CO, so mol CO = 0.13

Vm = 22.4 L

so for 0.13 mol :

= 0.13 x 22.4 L

= 2.912 L

Answer:

C. 0.04 moles per cubic decimeter.

Explanation:

The molar mass of the Iodine is 253.809 grams per mole and a cubic decimeter equals 1000 cubic centimeters. The concentration of Iodine ([tex]c[/tex]), measured in moles per cubic decimeter, can be determined by the following formula:

[tex]c = \frac{m}{M\cdot V}[/tex] (1)

Where:

[tex]m[/tex] - Mass of iodine, measured in grams.

[tex]M[/tex] - Molar mass of iodine, measured in grams per mol.

[tex]V[/tex] - Volume of solution, measured in cubic decimeters.

If we know that [tex]m = 2.54\,g[/tex], [tex]M = 253.809\,\frac{g}{mol}[/tex] and [tex]V = 0.25\,dm^{3}[/tex], then the concentration of iodine in a solution is:

[tex]c = \frac{2.54\,g}{\left(253.809\,\frac{g}{mol} \right)\cdot (0.25\,dm^{3})}[/tex]

[tex]c = 0.04\,\frac{mol}{dm^{3}}[/tex]

Hence, the correct answer is C.

Answer:

1.25mol

Explanation:

moles(n)=mass/Mr

Mr of H2O=(1*2)+16

                 =18

n=22.5/18

 =1.25 mol

1.25 mol

The equation for the calculation of mass is as follows:-

[tex]moles(n)=mass(g)/molar mass(g/mol)[/tex]......(1)

Given:-

Mass of water =22.5 g

Molar mass of water=18 g/mol

Subsitute both the values in the equation (1) as follows:-

[tex]n=22.5\ g/18\ g/mol\\=1.25 mol[/tex]

Hence, the value in moles is 1.25 mol.

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The question is incomplete, the complete question is;

Zinc and sulfur react to form zinc sulfide by the equation shown below. How many grams of ZnS can be formed when 12.0 g of Zn reacts with 6.50 g of S? (Atomic mass: Zn = 65.38, S = 32.06).

Answer:

17.5 g of ZNS

Explanation:

The equation of the reaction is;

Zn(s) + S(s) ------->ZnS(s)

Number of moles of Zn = 12.0/65.38 = 0.18 moles

Number of moles of S = 6.50/32.06 = 0.20 moles

Hence Zn is the limiting reactant

If 1 mole of Zn yields 1 mole of ZnS

Then 0.18 moles of Zn also yields 0.18 moles of ZnS

Mass of ZnS produced = 0.18 moles *  97.44 g/mol = 17.5 g of ZNS

Answer:

17.5 g of ZNS

Explanation:

Answer:

What question?

Explanation:

Answer:

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The concentration in mol/L of the chemist's potassium iodide solution : = 4.4 x 10⁻⁴ M

Given

88. μmol of Potassium iodide

200. mL volumetric flask

Required

The concentration

Solution

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

[tex]\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}[/tex]

Conversion :

88. μmol = 88 . 10⁺⁶ mol = 8.8 10⁻⁵ mol

200 ml = 0.2 L

The molarity :

= n : V

= 8.8.10⁻⁵ : 0.2

= 4.4 x 10⁻⁴ M

Answer:

iron, magnesium, and calcium but low in potassium and sodium.

Answer:

 ok        ,

Explanation:

     .

Answer:

La masa atómica del hierro es 55.847 gramos por mol.

Explanation:

Las masas molares de [tex]Fe_{54}[/tex], [tex]Fe_{56}[/tex], [tex]Fe_{57}[/tex] y [tex]Fe_{58}[/tex] son 53.940 gramos por mol, 55.935 gramos por mol, 56.935 gramos por mol y 57.933 gramos por mol, respectivamente. La masa atómica del hierro se determina mediante el siguiente promedio ponderado:

[tex]M_{Fe} = \frac{5.82}{100}\times \left(53.940\,\frac{g}{mol} \right)+\frac{91.66}{100}\times (55.935\,\frac{g}{mol})+\frac{2.19}{100}\times \left(56.935\,\frac{g}{mol} \right)+\frac{0.33}{100}\times \left(57.933\,\frac{g}{mol} \right)[/tex]

[tex]M_{Fe} = 55.847\,\frac{g}{mol}[/tex]

La masa atómica del hierro es 55.847 gramos por mol.

because we could be sick if don't get the shot there is a higher chance to have the flu

Answer:

a substance that can dissolve other molecules and compounds, which are known as solutesBecause of its ability to form hydrogen bonds, , meaning that it can dissolve many different kinds of molecules.

Explanation:

Answer:

[tex]C+O_2\ \overrightarrow{Pd} \ CO_2[/tex]

Explanation:

Hello!

In this case, since the catalytic reactions involve the presence of a catalyst that decrease the activation energy of the undergoing chemical reaction, when we need to include it in the chemical equation, we usually put on or underneath the reaction arrow, just as shown below:

[tex]C+O_2\ \overrightarrow{Pd} \ CO_2[/tex]

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Answer:

A reaction at equilibrium implies that the concentration/amount of reactants & products present in that reaction don't change but will remain constant. It could also mean that the forward reactions and reverse reactions will occur at the same rates.

Explanation:

A reaction at equilibrium implies that the concentration/amount of reactants & products present in that reaction don't change but will remain constant. It could also mean that the forward reactions and reverse reactions will occur at the same rates.

Answer:

Mass = 19.0 g

Explanation:

Given data:

Mass of limestone react = ?

Mass of lime produced = 11.2 g

Solution:

Balanced chemical equation:

CaCO₃     →      CaO + CO₂

Number of moles of lime:

Number of moles = mass / molar mass

Molar mass of lime 56.1 g/mol

Number of moles = 11.2 g/ 56.1 g/mol

Number of moles = 0.19 mol

Now we will compare the moles of CaO and CaCO₃

                     CaO        :           CaCO₃

                       1             :             1

                     0.19          :          0.19

Mass of limestone react:

Mass = number of moles × molar mass

Mass = 0.19 mol × 100.1 g/mol

Mass = 19.0 g

Answer:

a. Cellular Respiration produces more ATP than Anaerobic Respiration.

Explanation:

Cellular Respiration creates a total of 36-38 ATP per round. Anaerobic processes only produce 2 ATP per cycle.

Answer: Electron

Explanation:

An orbital is a region in an atom where there is a high probability of finding an electron.