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kaheart [24]
3 years ago
14

Which best describes a swimming pool?

Chemistry
2 answers:
swat323 years ago
8 0
A swimming pool is a solution as it is a solution of chlorinated water
serious [3.7K]3 years ago
8 0

Answer:

3) it is a solution

Explanation:

A solution has two components: solute which is the minor component and a solvent which is the major component in which a solute is dissolved.

For example: a salt solution is essentially sodium chloride (NaCl) dissolved in water. Here: NaCl is the solute and water is the solvent

Reactant and product are terms used in the context of chemical reactions, Reactant is an element or a compound that combines with another compound   to form one or more products.

In the given example: a swimming pool has two components: chloride solute (disinfectant) dissolved in a water solvent. Hence it is a solution.

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What is the pressure inside a 2.0 L bottle filled with 0.25 mol of carbon dioxide gas at 25 °C?
motikmotik

Answer:

3.1atm

Explanation:

Given parameters:

Volume of gas = 2L

Number of moles  = 0.25mol

Temperature  = 25°C = 25 + 273  = 298K

Unknown:

Pressure of the gas = ?

Solution:

To solve this problem, we use the ideal gas equation.

This is given as;

       PV  = nRT

P is the pressure

V is the volume

n is the number of moles

R is the gas  constant  = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

          P  = \frac{nRT}{V}  

 Now insert the parameters and solve;

         P  = \frac{0.25 x 0.082 x 298}{2}   = 3.1atm

8 0
3 years ago
What is the formula for manganese (ii) fluoride decahydrate? (you may use a * to represent the dot in the formula.)?
Rasek [7]
These types of molecules are called hydrates. They have a certain number of moles attached to the salt. Their characteristic is being hygroscopic. That means that when they are exposed to air, they readily solvate. 

The formula for Manganese Fluoride Decahydrate will involve the formula Mn, F and H₂O. In ionic form, Manganese is Mn⁺² while fluoride is in F⁻. When they are brought together, their superscripts are 'cross-multiplied' and becomes their respective subscripts. The compound becomes MnF₂. Then, we add the decahydrate which means 10 moles of H₂O. Hence, the formula for Manganese Fluoride Decahydrate is MnF₂*10H₂O.
4 0
2 years ago
Read 2 more answers
Given the reaction:
STatiana [176]

answer:

as per the formula of given carbohydrate the answer is 15 moles

explanation:

  • 1 mole carbohydrate contains 6 moles water
  • 2.5 moles contain 6 X 2.5 = 15 moles
7 0
3 years ago
Laura and 50ml of foil and water to 100 ml of ice water into a freezer what at what temperature will the water freeze
rewona [7]
Don't understand the text, but water always freezes at 0°C as long as its water.
6 0
3 years ago
Calculate the pH of a solution that has a [OH−] of 2.6 × 10^−6 M.
TiliK225 [7]

Answer:

A. 8.4

Explanation:

[OH⁻] = 2.6 × 10⁻⁶               Take the negative log of each side

-log[OH⁻] = pOH = 5.59     Apply the pH/pOH relation

pH + pOH = 14.00               Insert the value of pOH

pH + 5.59 = 14.00               Subtract 5.59 from each side

pH = 14.00 -5.59 = 8.41

7 0
2 years ago
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