The psalm which begins the lord is my shepherd is the ______. (what number ?)​

Answer:

8 litres of SO2 will produced from 26.9L o2

Answer:

10.5 g

Explanation:

Step 1: Given data

Step 2: Calculate the moles of solute (n)

Molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

n = M × V

n = 0.243 mol/L × 0.580 L = 0.141 mol

Step 3: Calculate the mass corresponding to 0.141 moles of KCl

The molar mass of KCl is 74.55 g/mol.

0.141 mol × 74.55 g/mol = 10.5 g

Answer: D

Explanation:  Irregular galaxies

Answer:

Your answer is D

Explanation:

Irregular galaxies do not have a regular structure.

Answer: E

Explanation:

Answer:

Explanation:

5.6

According to the stoichiometry of the given chemical equation, 11.2 grams  of nitrogen is required to react with 16 grams of oxygen.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

25 ml of stock

Explanation:

Molarity x Volume of Concentrated Stock = Molarity x Volume of  Diluted Stock

=> Mc x Vc = Md x Vd => (0.5M)(x) = (0.25M)(50 ml)

=> x = Vc = (0.25M x 50 ml) / (0.50M) = 25 ml of stock

At STP, 1 mole of any gas occupies 22.4 L of space. Since we are given STP conditions here, we can use this ratio to determine the number of moles of CO gas: (32.8 L CO)/(22.4 mol CO/L CO) = 1.51 mol CO.

So, there are 1.51 moles of CO gas.

Answer:

Cools Very Quickly

Explanation:

This is the right answer!

1) Using Gas In The Home. In our homes, we end up utilizing the material every day.

2) Use In The Industrial Sector. The industrial sector makes similar use of natural gas liquids as a fuel for process heating and raw material to produce chemicals, fertilizers, and hydrogen.

3) Transportation.

Hope this helps. Btw, I love ur pfp!

Answer:

1) Using Gas In The Home. In our homes, we end up utilizing the material every day. ...

2) Use In The Industrial Sector. The industrial sector makes similar use of natural gas liquids as a fuel for process heating and raw material to produce chemicals, fertilizers, and hydrogen.

3) Transportation.

Answer:

Na2CO3 + CaCl2 → CaCO3 + 2 NaCl

Explanation:

A double displacement reaction is a type of metathesis reaction in which two reactants exchange ions to form two new compounds. Double displacement reactions usually involve reacting two soluble salts in aqueous solution resulting in the formation of two products: a soluble salt and an insoluble salt that is produced as a precipitate.

If the reaction of two soluble compounds does not produce a precipitate, the reaction does not result in the formation of a product as basically, all the ions are mixed together in the reaction vessel.

From the given reactions above:

1. 3 KBr + AlPO4 → K3PO4 + AlBr3

The reaction does not proceed to product formation as the two products are all soluble salts.

2. Na2CO3 + CaCl2 → CaCO3 + 2 NaCl

The reaction occurs as one of the products, CaCO3 is insoluble as is produced as a precipitate.

3. NH4OH + KCl → KOH + NH4Cl

The reaction does nott occuras the products are all soluble in water.

4. ZnCl2 + Mg2SO4 → ZnSO4 + MgCl2

The reaction does not occur as the products are all soluble in water.

Answer: 0.144 moles. :)

Explanation:

The number  of  moles of NaCl that are contained in 50.0 mL of 2.50 M NaCl is 0.125 moles

Using this formula

Molarity=Moles of solute/Liters of solution

First step is to convert 50.0 mL to Liters

Litres=50.0 ml×1 L/1000 ml

Litres=0.05 L

Now let determie the number of moles of NaCl

2.50M=moles/0.05

moles=2.50M(0.05)

moles = 0.125 moles of NaCl

Inconclusion The number  of  moles of NaCl that are contained in 50.0 mL of 2.50 M NaCl is 0.125 moles

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Answer:

One mole of U238 ( 6.022 X 10^23 atoms) is 238 grams; one mole of U235 is 235 grams. The difference in molecular weight between a mole of U235 and U238 is 3 grams, the secret to enriching uranium.

Explanation:

E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

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Answer:

1.1 g Na2SO4

Explanation:

First convert mL to L. Then multiply by the Molarity to get moles, then multiply by the molar mass to get grams.

15 mL x     1 L       x       0.50 mol Na2SO4     x        142 g        =          1.1 g

              10^3 mL                 1 L                                   mol                     Na2SO4

In a formula unit, there are 48 gram of Na2SO4 atoms of each element. In terms of molar mass (gram mass unit): 45.98 g Na2SO4 in total 142.04 g sodium sulphate

A mole of sodium sulphate is created when two moles of sodium (45.98 g), one mole of sulphur (32.06 g), and four moles of oxygen (64.00 g) are combined (142.04 g).

The atomic mass of sodium sulphite is equal to 10 moles times the molecular mass, or 1260 grams. Consequently, 1260 grams are the mass of 10 moles of sodium sulphite (Na2SO4).

We first obtain the atomic weights of the different elements in a periodic table in order to compute the molar mass of a molecule. Then, we multiply the total number of atoms by each one's atomic mass. Finally, we calculate the molar mass by combining all the atomic masses.

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Answer:

15g

Explanation:

hope this helped

Answer:Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.

Explanation:

Answer:

b. 101.02°C

Explanation:

The elevation of boiling point in a solvent due the addition of a solute is a colligative property called Boiling point Elevation. The formula is:

ΔT = Kb*m*i

Where ΔT is change in boiling point

Kb is boilinig point elevation constant = 0.512°C/m for water

m is molality of the solution = 0.50m

And i is Van't Hoff Factor (4 for the Al(NO₃)₃ because its disolution produce 4 ions)

Replacing:

ΔT = 0.512°C/m*0.50m*4

ΔT = 1.02°C

As the boiling point of pure water is 100°C and the increasing is of 1.02°C, boiling point of the solution is:

101.02°C

Right option is:

Answer:

Explanation:

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Answer:

4.767 grams of KCl are produced from 2.50 g of K and excess Cl2

Explanation:

The balanced equation is

2 K+ Cl2 --->2 KCI

Here the limiting agent is K. Hence, the amount of KCl will be calculated as per the mass of 2.50 gram of K

Mass of one atom/mole of potassium is 39.098 grams

Number of moles is 2.5 grams = [tex]\frac{2.5}{39.098} = 0.064[/tex]

So, 2 moles of K produces 2 moles of KCL

0.064 moles of K will produces 0.064 moles of KCl

Mass of one molecule of KCl is 74.5513 g/mol

Mass of 0.064 moles of KCl is 4.767 grams

The mass of KCl produced is 4.77g

From the question, we are to determine the mass of KCl produced

From the given balanced chemical equation,

2K + Cl₂ → 2KCl

This means,

2 moles of potassium reacts with 1 mole of Chlorine to produce 2 moles of potassium chloride

First, we will determine the number of moles of potassium (K) present.

Using the formula,

[tex]Number\ of \ moles = \frac{Mass }{Atomic\ mass}[/tex]

Atomic mass of K = 39.098 g/mol

Then,

Number of moles of K present = [tex]\frac{2.50}{39.098}[/tex]

Number of moles of K present = 0.06394 mole

Now,

If 2 moles of K reacts to produce 2 moles of KCl

Then,

0.06394 moles of K reacts to produce 0.06394 moles of KCl

Thus, the number of moles of KCl produced is 0.06394.

Now, for the mass of KCl produced

From the formula,

Mass = Number of moles × Molar mass

Molar mass of KCl = 74.5513 g/mol

Then,

Mass of KCl produced = 0.06394 × 74.5513

Mass of KCl produced = 4.7668 g

Mass of KCl produced = 4.77 g

Hence, the mass of KCl produced is 4.77g

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Answer:

Streak

Explanation:

Hope it Help

Thanks me later

Answer:

The air being heated by the sun

Explanation:

Just took the quiz

Answer:

The answer is A (the air being heated by the sun)

Explanation:

A P E X

As we move left to right across Period 3 from Sc to Zn, the energy needed to remove an electron from an atom generally increases.

Periodic table is the arrangement of chemical elements according to their atomic number in the tabular form. It is arranged from the lowest atomic number to highest atomic number i.e.  the total number of protons in the atomic nucleus are in the increasing order.

In this type of recurring pattern which is called as periodic law in their properties in which elements in the same column (group) have similar properties.

The horizontal rows which goes from left to right is called as periods (7 in numbers) where the vertical columns which goes from up to down are called groups (18 in numbers). There is a square for each element includes a number and letters. These letter are the chemical name for the element like Hydrogen is H but for silver it is Ag. The number present is the atomic number. There are total 118 elements but only 94 is naturally exist on Earth.

So, as we move left to right across Period 3 from Sc to Zn, the energy needed to remove an electron from an atom generally increases.

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Answer:

C

Explanation:

Check it. So u can know it