The Hadley , Ferrel , And polar cells are all patterns of

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Answer 1

Answer: The Hadley, Ferrel, and Polar cells are all large scale atmospheric circulatory systems.

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HELPPP| WILL MARK BRAINLEST Rosalinda is thirsty and wants to make a glass of lemonade as quickly as possible. She needs to add sugar to lemon juice and water to make the lemonade. Which type of sugar should she use?Group of answer choicesgranulated sugar with fine grainssugar formed into cubesraw sugar with coarse grainssugar from rock candy

Given the equation: 2Na + 2H2O → 2NaOH + H2 Which substance in this equation is a binary compound?

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Answer: In the following equation, $H_2O$ is considered as a binary compound.

Explanation: A binary compound is considered as a compound having 2 elements only. In the following chemical equation:

$2Na+2H_2O\rightarrow 2NaOH+H_2$

There are 2 compounds present because compound is defined as the chemical combination of two or more elements in a fixed ratio.

In the equation, compounds are: $H_2O$ and $NaOH$

$H_2O$ consists of 2 elements which are hydrogen and oxygen and hence is considered as a binary compound.

$NaOH$ consists of 3 elements which are sodium, hydrogen and oxygen and hence, cannot be considered as a binary compound.

One phosphorus, three chlorine, one oxygen

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Phosphoryl chloride :

POCl3

hope this helps!.

__________ What is the value of the activation energy for the forward reaction? Be sure to include theappropriate sign.

Answers

Answer:

+60 kJ

Explanation:

Activation energy = PE(AB) - PE(A+B) = 100 -40 = +60 kJ

Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodic table?

Answers

The atom of alkaline earth metal has one more proton and one more electron than the alkali metal that is next to it to the left on the periodic table. Then the atomic number of the alkali metal is one unit less than the atomic number of the alkaline earth metal next to it.

What is ph?how basic a solution is
how acidic a solution is
the concentration of potassium ions in a solution
the concentration of hydrogen ions in a solution

Answers

I think the best option is the fourth statement. pH is the measure of the concentration of hydrogen ions in a solution. It is expressed as: pH = -log [H+]. However, it is also an indicator of the acidity and alkalinity of a solution.

Answer:

The concentration of hydrogen ions in a solution

Explanation:

I got it right on the test!

What is the theoretical yield of sodium oxide (Na₂O) in grams when 20.0g of calcium oxide (CaO) reacts with an excess amount of Sodium chloride? *10 points
Captionless Image
10.0g
22.1g
32.9g
5.6g

Answers

Answer:

22.1 g

Explanation:

The balanced reaction equation which serves as a guide in solving the problem is given as;

CaO(s) + 2NaCl(aq) ------> Na2O(s) + CaCl2(aq)

The question clearly specifies that sodium chloride is the reactant in excess. This means that calcium oxide should be used to calculate the theoretical yield of sodium oxide.

Number of moles of calcium oxide reacted = mass of calcium oxide / molar mass of calcium oxide

Molar mass of calcium oxide = 56.0774 g/mol

Mass of calcium oxide = 20.0g

Number of moles of calcium oxide = 20.0 g/ 56.0774 g/mol = 0.3566 moles

From the balanced reaction equation;

1 mole of calcium oxide produces 1 mole of sodium oxide

Therefore, 0.3566 moles of calcium oxide will produce 0.3566 moles of sodium oxide.

Mass of sodium oxide produced = number of moles × molar mass

Molar mass of sodium oxide= 61.9789 g/mol

Mass of sodium oxide = 0.3566 moles × 61.9789 g/mol

Mass of sodium oxide= 22.1 g

Answer:

22.1g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CaO + 2NaCl —> Na2O + CaCl2

Next, we shall determine the mass of CaO that reacted and the mass of Na2O produced from the balanced equation.

This is illustrated below:

Molar mass of CaO = 40 + 16 = 56g/mol

Mass of CaO from the balanced equation = 1 x 56 = 56g

Molar mass of Na2O = (23x2) + 16 = 62g/mol

Mass of Na2O from the balanced equation = 1 x 62 = 62g

From the balanced equation above,

56g of CaO reacted to produce 62g of Na2O.

Finally, we can determine the theoretical yield of Na2O as follow:

From the balanced equation above,

56g of CaO reacted to produce 62g of Na2O.

Therefore, 20g of CaO will react to produce = (20 x 62)/56 = 22.1g of Na2O.

Therefore, the theoretical yield of Na2O is 22.1g

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Under which conditions will gases best dissolve in liquids?

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Marshall determines that a gas has a gauge pressure of 276 kpa what's the absolute pressure of the gas