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Answer:

electrolytes

Explanation:

If an electrical current can run though a solution, it is said to contain  ions and the solution in which ions are present is called as electrolytes.

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.

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In the case when the HCI should be added so it should be shifted to reactants.

It is the solution that should be considered as the aqueous solution that comprise of the mixture of the weak acid and the conjugate base.

Here the ph level should be change very less at the time when the small amount of the strong acid should be added.

Therefore, it  should be shifted to reactants.

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Answer:

b)6.2 grams

Explanation:

Recall that percentage yield =

actual yield/theoretical yield * 100/1

theoretical yield = 8.2 grams

percentage yield = 75%

Let the actual yield be x

Hence;

75 = x/8.2 * 100

75 = 100x/8.2

75 * 8.2 = 100x

x = 75 * 8.2/100

x = 6.15 g

x = 6.2 g

75 =

Answer:

1.Exhaust from farming machines pollutes the air

2.Cows give off methane gas that gets into the atmosphere

3.The land the farm was cleared away on effects other recosystems

Explanation:

Farming adversely affected the earth systems such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

Agriculture causes a number larger of environmental issues that cause environmental degradation such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

For example, exhaust from farming machines pollutes the air, Cows give off methane gas that gets into the atmosphere and the land the farm was cleared away on effects other ecosystems.

So we can conclude that farming adversely affected the earth systems such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

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Answer: The new pressure is 66.66 mL.

Explanation:

Given : [tex]V_{1}[/tex] = 10 mL,        [tex]V_{2}[/tex] = 3 mL

[tex]P_{1}[/tex] = 20 atm,          [tex]P_{2} = ?[/tex]

Formula used to calculate the new pressure is as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}[/tex]

Substitute the given values into above formula as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}\\20 atm \times 10 mL = P_{2} \times 3 mL\\P_{2} = \frac{20 atm \times 10 mL}{3 mL}\\= 66.66 mL[/tex]

Thus, we can conclude that the new pressure is 66.66 mL.

Explanation:

pressure is Force/area

30000/0.75

Answer:

Explanation:

Fungicides are agents that are used to prevent or eradicate fungal infections from plants or seeds.

Answer:

Fungus on the crops can be controlled by using:-

Start by planting healthy stock.  

Choose planting sites based on plant needs.  

Avoid overhead watering.  

Water early in the day.  

Don't crowd plants.  

Don't work a wet garden.  

Treat with a trusted, proven fungicide.

Explanation:

hope it helps!

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Answer:

3.62 g/cm³

Explanation:

density = mass ÷ volume

Therefore, do 12.69 divided by 3.5

Answer:

176 g/mol

Explanation:

To get this, multiply the weight of the molecule by Avogadro's number:

(2.93×[tex]10^{-22}[/tex]) × (6.022×[tex]10^{23}[/tex]) = 176.44 g/mol

Answer: 1 molar NaOH contains 40 grams of NaOH per every liter of water

Explanation:

so 2 M NaOH contains twice that amount, ie. 80 grams per liter. Then, ine 250 ml of weater, there should be 80/4 = 20 grams of solid NaOH dissolved.

Answer: All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.

Explanation: please mark as brainliest

Answer:

No. Light is not a physical thing, so it cannot change physical things like glue.

Explanation:

Light is not effective at all to glue, it doesn't do anything at all.

Answer:

the ice becomes -20 degrees celcius colder

Explanation:

Answer:

3.02 X1023 atoms Ag limol. - - 0.50 1 moles. 6.02241023 atoms.

Answer:

C7H6O2

Explanation:

Let;

68.8% of Carbon represents 68.8g

4.95% of Hydrogen represents 4.95g

26.25% of Oxygen represent 26.25g

Next, we convert each gram value to mole value by dividing by their respective molar mass {C = 12, H = 1, O = 16}

C = 68.8/12 = 5.73 mol

H = 4.95/1 = 4.95 mol

O = 26.25/16 = 1.64 mol

Next, we divide each mole value by the smallest (1.64mol)

C = 5.73 ÷ 1.64 = 3.49

H = 4.95 ÷ 1.64 = 3.02

O = 1.64 ÷ 1.64 = 1

Next, we multiply each ratio by 2 to obtain our simplest whole number ratio (empirical formula)

C = 3.5 × 2 = 7

H = 3.02 × 2 = 6

O = 1 × 2 = 2

Hence, the ratio of C, H and O is 7:6:2 and the empirical formula of benzoic acid is C7H6O2

Answer:

A

Explanation:

The letter A is the correct answer

Number of moles

Explanation:

From the general formula of ideal gas equation it is seen that number of moles is present and absent in other gas equations

Answer:

212. 9 degree celcius

Explanation:

From PV =nRT

T= PV/nR

T= (5. 5x20)/(6. 3x0. 082)

T= 110/0. 5166

T= 212. 9 degree celcius

Answer: Organic acids form when a carboxyl group (−COOH) is substituted for one of the hydrogen atoms in a hydrocarbon.

Answer:

1. Hydrochloric acid

Explanation:

Hydrochloric acid

Answer:

4)

Explanation:

formula:H2 SO4

there are 2 H+ ions in 1 molecule of sulfuric acid

thus it has a basicity of 2

Answer:

There are 15 protons in phosphorous.

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Answer:

yes it can because heat can solidify the rubber and it does matter what light

Explanation:

The light can cause the rubber to become solid. It doesn't matter the type of light.

Any type of light can cause the rubber to become solid because all types of

light emit thermal(heat) radiation.  When they are emitted , it causes the

vaporization of some compounds thereby causing it to solidify.

In this scenario, the rubber being able to absorb ultraviolet light simply

depicts that it will solidify as a result of an increase in temperature due to

the thermal radiation.

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Answer:

Sulfur has the same amount, like all the other elements in group 16, has six valence electrons.

Explanation:

Answer:

give me the question and I can help you

Answer:

it's not clear

Explanation:

.

Answer:

2.56 moles of nitrogen was released.

Explanation:

We'll begin by calculating the final moles of nitrogen in the canister. This can be obtained as follow:

Initial mole (n₁) = 3.2 moles

Initial volume (V₁) = 1.5 L

Final volume (V₂) = 0.3 L

Final mole (n₂) =?

V₁/n₁ = V₂/n₂

1.5 / 3.2 = 0.3 / n₂

Cross multiply

1.5 × n₂ = 3.2 × 0.3

1.5 × n₂ = 0.96

Divide both side by 1.5

n₂ = 0.96 / 1.5

n₂ = 0.64 mole

Finally, we shall determine the number of mole of nitrogen that was released. This can be obtained as follow:

Initial mole (n₁) = 3.2 moles

Final mole (n₂) = 0.64 mole

Amount released =?

Amount released = n₁ – n₂

Amount released = 3.2 – 0.64

Amount released = 2.56 moles

Thus, 2.56 moles of nitrogen were released.

Answer:

B. 20m/s

Explanation:

The wavelength of a wave can be calculated using the formula;

λ = v/f

Where;

λ = wavelength (m)

v = velocity (m/s)

f = frequency (Hz)

According to the information provided in this question; the wave has a wavelength (λ) of 2m and a frequency (f) of 10Hz.

Using λ = v/f

v = λ × f

v = 2 × 10

v = 20m/s.