What is the correct formula that would result from the combination of the two ionic species?
Cs¹+ and Cl¹-

Answer:

Chemical reaction A, because the reactant is a compound

Explanation:

In a decomposition reaction, a compound is broken down into its components, so the number of products is greater than the number of reactants

Chemical reaction A, because the reactant is a compound is a statements correctly identifies the decomposition reaction and describes a substance involved.

When atoms establish or break chemical bonds, chemical processes take place. Reactants are the substances that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.

Although a chemical reaction is not always a "one-way street," as we'll examine further in the next section, an arrow is drawn between the reactants and products to denote the direction of the reaction.

 Our equation must have them in it in order for there to be an equal number of atoms of each element on both sides of the equation.

Therefore, Chemical reaction A, because the reactant is a compound is a statements correctly identifies the decomposition reaction and describes a substance involved.

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Taking into account the definition of density, the density of the glucose is 1.03 [tex]\frac{g}{mL}[/tex].

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

[tex]density=\frac{mass}{volume}[/tex]

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

In this case, you know that:

Replacing in the definition of density:

[tex]density=\frac{20.6 g}{20 mL}[/tex]

Solving:

density= 1.03 [tex]\frac{g}{mL}[/tex]

In summary, the density of the glucose is 1.03 [tex]\frac{g}{mL}[/tex].

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Answer:

A rule of thumb is that 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH is tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.

Answer:

0.5 M

Explanation:

Molar concentration : M = n/v

n = moles of solute

v = liters of solution

Hence, 5.0 / 10.0 = 0.5 M

Answer:

a) formula for citric acid is - C6 H8 o7

b) lime water turns opaque after adding co2 due to the formation of calcium carbonate.

c) reaction 3 is displacement reaction where a high reactive metal displace a less reactive from its salt solution.

d) reaction 1) is combination reaction where two reactant combines to give a single product whereas reaction 2) is decomposition reaction where a single reactant splits into more that 1 products.

When we convert 9.15 Calories to joules, the result obtained is 38.28 Joules

From the question given above, the following data were obtained:

The conversion scale to convert calories to joules is given below:

1 Calorie = 4.184 Joules

Using the above scale, we can convert 9.15 calories to joules as shown below:

1 Calorie = 4.184 Joules

Therefore,

9.15 Calories = (9.15 Calorie × 4.184 Joules) / 1 Calorie

9.15 Calories = 38.28 Joules

Thus, we can conclude from the above calculation that the energy in joules is 38.28 Joules

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Answer:

38,200J

Explanation:

 9.15 x 4.18 x 1000= 38,247 → 38,200J

Answer:

It's the first answer

Explanation:

Aqueous just means that the solution is just dissolved in water

Answer:

4 NH₃ (g) + 3 O₂ (g) ----> 2 N₂ (g) + 6 H₂O (g) + energy

Explanation:

The unbalanced equation:

NH₃ (g) + O₂ (g) ----> N₂ (g) + H₂O (g) + energy

Reactants: 1 nitrogen, 3 hydrogen, 2 oxygen

Products: 2 nitrogen, 2 hydrogen, 1 oxygen

The sort-of balanced equation

2 NH₃ (g) + 1/2 O₂ (g) ----> N₂ (g) + 3 H₂O (g) + energy

I first started by balancing the nitrogens. This then lead me to balance the hydrogens. When I went to balance the oxygens, only a 1/2 coefficient would work. However, 1/2 coefficients are technically incorrect. To get rid of this coefficient, you need to multiply each coefficient by 2.

The balanced equation:

4 NH₃ (g) + 3 O₂ (g) ----> 2 N₂ (g) + 6 H₂O (g) + energy

Reactants: 4 nitrogen, 12 hydrogen, 6 oxygen

Products: 4 nitrogen, 12 hydrogen, 6 oxygen

Now, all of the elements are equal on both sides and there are no 1/2 coefficients. These are the smallest whole-number coefficients because some of the numbers cannot be further simplified (3).

Answer:

Sometimes peoples like to say that atom is like a cell in living things,is it true?comment below,letss goo!!

Explanation:

A greek philosopher known as Democritus was the first to consider the idea that matter is made up of small particles ,about 400BC.

Since there was no experimental evidence to support his idea,it was not accepted.

About 2000 years later an English man called John Dalton revived the discussion.He used experimental evidence to support his idea to convince people that matter is made up of particles called atoms.It accepted!.

An English man called John Dalton revived the discussion.He used experimental evidence to support his idea to convince people that matter is made up of particles called atoms.It was accepted ,he conclude the following theories:

Answer:

1.24×10^6/6.2×10^-3

200

acc to scientific notation: 0.2×10^3 is the answer

Explanation:

pls mark me as brainlest

Answer:

they are metals so they are:-

-malleable

-ductile

because metallic bonding is the same in all direction throughout the solid

Answer:

1kg gold because when it's mined it needs stronger machines

1kg gold because when it's mined it needs stronger machines.

The amount of space occupied by a three-dimensional figure as measured in cubic units.

Gold is called a heavy metal because of its high density, which comes from the fact that each of its atoms is individually very heavy.

Hence, 1kg gold because when it's mined it needs stronger machines.

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The observations are as follows:

When a mixture of iron fillings and sulfur are heated, black iron (ii) sulfide is formed.

Unlike iron fillings, black iron (ii) sulfide is not attracted to a magnet.

When carbon sulfide is added to it, no visible reaction is observed.

When dilute hydrochloric acid is added to it, a gas with a rotten-egg smell is evolved.

The gas is hydrogen sulfide which is a reducing agents and acidic in nature.

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Considering the definition of molar mass, the moles of gas used are 10.625 moles.

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

Natural gas has a molar mass of 16.0 g/mole.

You started out the day with a tank containing 200.0 g of natural gas.  So, you can apply the following rule of three: If by definition of molar mass 16 grams are contained in 1 mole, 200 grams are contained in how many moles?

[tex]amount of moles at the beginning=\frac{200 gramsx1 mole}{16 grams}[/tex]

amount of moles at the beginning= 12.5 moles

At the end of the day, your tank contains 30.0 g of natural gas. So, you can apply the following rule of three: If by definition of molar mass 16 grams are contained in 1 mole, 30 grams are contained in how many moles?

[tex]amount of moles at the end=\frac{30 gramsx1 mole}{16 grams}[/tex]

amount of moles at the end= 1.875 moles

The number of moles used will be the difference between the number of moles used initially and the contents at the end of the day.

moles used= amount of moles at the beginning - amount of moles at the end

moles used= 12.5 moles - 1.875 moles

moles used= 10.625 moles

Finally, the moles of gas used are 10.625 moles.

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Taking into account the definition of dilution, the molarity of the unknown solution is 0.133 M.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

In this case, you know:

Replacing in the definition of dilution:

Ci× 10.5 mL= 0.172 M× 80 mL

Solving:

Ci= (0.172 M× 80 mL)÷ 10.5 M

Ci= 0.133 M

In summary, the molarity of the unknown solution is 0.133 M.

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Answer: d. You would decrease the pressure

Explanation:

If the temperature of a gas is held constant, the pressure and volume vary inversely.

If the gas's temperature remains constant, then increase the volume of the gas with a decrease in the pressure. Therefore, option (D) is correct.

Boyle’s law can be described as at a constant temperature, the pressure exerted by a given mass of gas being inversely proportional to the volume occupied by the gas.

The pressure and volume of a gas at a particular temperature have an inverse relationship.

P ∝ 1/V

or   P₁ .V₁ = P₂. V₂                                                             ................ (1)

Where the initial and final pressure of the gas is P₁ and  P₂ respectively.  The initial and final volume of the gas is V₁ and  V₂ respectively at temperature 'T'.

Therefore, if we keep the temperature of the gas constant. them the volume of the gas will increase only if we decrease the pressure of the gas.

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Considering the definition of Avogadro's number:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

You can apply the following rule of three, considering the Avogadro's number:  If 1 mole of lithium contains 6.023×10²³ molecules, 2.7 moles of lithium contains how many molecules?

amount of molecules of lithium= (6.023×10²³ molecules × 2.7 moles)÷1 mole

amount of molecules of lithium=1.62621×10²⁴ molecules

Finally, the number of molecules of lithium is 1.62621×10²⁴ molecules.

On the other hand you can apply the following rule of three, considering the Avogadro's number:  If 1 mole of sodium chloride​ contains 6.023×10²³ molecules, 1.8 moles of  sodium chloride​ contains how many molecules?

amount of molecules of sodium chloride= (6.023×10²³ molecules × 1.8 moles)÷1 mole

amount of molecules of sodium chloride=1.08414 ×10²⁴ molecules

Finally, the number of molecules of sodium chloride is 1.08414×10²⁴ molecules.

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Answer:

Explanation:

A solution of zinc metal and lead nitrate react to form zinc nitrate and lead metal.

Zn(s) + Pb(NO3)2 = Zn(NO3)2 + Pb

Answer:

speed and direction are the two things

The structure of the compound, there will be ten unique signals in the carbon 13 NMR of the compound.

The NMR signals shows the atoms in a compound that are in unique chemical environments. The atoms that are in the same chemical environment will only give one signal.

Based on the structure of the compound, there will be ten unique signals in the carbon 13 NMR of the compound.

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The mass of NO produced is 9.3 g; option D.

The mass of nitrogen (ii) oxide, NO, produced from the reaction is determined from the mole ratio of the reaction.

The mole ratio of ammonia to oxygen from the equation of the reaction is 4 : 5.

moles of oxygen = 11.8/32 = 0.368

moles of ammonia = 8.3/17 = 0.488

Oxygen is the limiting reactant.

Mass of NO produced = 0.369 * 4/5 * 30 = 9.4 g NO

In conclusion, approximately 9.3 g of NO is produced.

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Answer:

The diagram represents the general equation for photosynthesis.

What does the X represent?

Explanation:

Carbon dioxide

Answer:

Ethyl magnesium Bromide

Answer:

27.50 g

Explanation:

Unless weight was somehow gained/lost during the reaction, the products should weigh as much as the reactants. Since this isn't specified the mass of the reactants should be equal to the mass of the products.

The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.

Micro Organism are organism that can be seen with a microscope.

Microorganisms include bacteria, protozoa, algae, and fungi.

Micro organisms exist in its single-celled form or as a colony of cells.

The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.

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From the calculation, the molar mass of the solution is 141 g/mol.

We know that;

ΔT = K m i

K = the freezing constant

m = molality of the solution

i = the Van't Hoft factor

The molality of the solution is obtained from;

m = ΔT/K i

m = 3.89/5.12 * 1

m = 0.76 m

Now;

0.76 =  26.7 /MM/0.250

0.76 = 26.7 /0.250MM

0.76 * 0.250MM =  26.7

MM= 26.7/0.76 * 0.250

MM = 141 g/mol

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Answer:

2.0 moles S

Explanation:

To find the number of moles of S, you need to convert the moles Na to moles S via the mole-to-mole ratio. This ratio is represented by the coefficients in the balanced equation. Because you wish to find moles S, you want to put this number in the numerator. Because you want to eliminate the moles Na, this number should be in the denominator.

2 Na + 1 S ---> Na₂S

4.0 moles Na             1 mole S
----------------------  x  ---------------------  =  2.0 moles S
                                 2 moles Na