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yan [13]
3 years ago
12

What can happen when chlorine is left in drinking water

Chemistry
1 answer:
lawyer [7]3 years ago
4 0
Chlorine is used in swimming pools to kill unwanted bacteria and keep swimmers safe from infections and disease from the water. While there isn't enough chlorine in swimming pools to cause permanent damage, it can leave your hair dry and your skin irritated and red.
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Ion-dipole interactions can occur between any ion and any molecule with a dipole. Identify all of the following pairs of species
Zigmanuir [339]

An ion-dipole interaction is the result of an electrostatic interaction between a charged ion and a molecule that has a dipole. It is an attractive force that is commonly found in solutions, especially ionic compounds dissolved in polar liquids. A cation can attract the partially negative end of a neutral polar molecule, while an anion attracts the positive end of a polar molecule. Ion-dipole attractions become stronger as the charge on the ion increases or as the magnitude of the dipole of the polar molecule increases.

This force of attraction is between an ion and a charge , it is weaker force than covalent bond and ionic bond . EX - The ion dipole interaction takes place between water and sodium ion , in it there is a small charge on oxygen molecule in water which is attracted by sodium charge .

Most commonly found in solutions. Especially important for solutions of ionic compounds in polar liquids.

A positive ion (cation) attracts the partially negative end of a neutral polar molecule.

to learn more about dipole interactions:-

https://brainly.in/question/1157107

4 0
1 year ago
How does nectar provide energy for a humming bird
Greeley [361]

Nectar contains a high concentration of sucrose (sugar).

When hummingbirds ingest the nectar, their cells use oxygen to convert it into carbon dioxide and water.

The oxidation of sucrose releases a large amount of energy, which the birds can use for flapping their wings, etc.

6 0
2 years ago
A 1.40-L gaseous system absorbs 75 J of heat and expands its volume to 2.00 L against an external pressure of 1.02 atm. What is
kramer

Answer:

15.24 J is the change in internal energy for this process.

Explanation:

According to the first law of thermodynamics:-

\Delta U = q + w

Where,  

U is the internal energy

q is the heat

w is the work done

From the question,

q = + 75 J

(+ sign as the heat is being absorbed)

The expression for the calculation of work done is shown below as:

w=-P\times \Delta V

Where, P is the pressure

\Delta V is the change in volume

From the question,  

\Delta V = 2.00 - 1.40 L = 0.60 L

P = 1.02 atm

w=-1.02\times0.60\ atmL

Also, 1 atmL = 101.3 J

So,  

w=-1.02\times0.60\times 101.3\ J=-59.76\ J (work is done by the system)

So,

\Delta U = +75\ J-59.76\ J = 15.24\ J

<u>15.24 J is the change in internal energy for this process.</u>

6 0
3 years ago
If the power source in a motor was to be replaced with an electrical load, and the armature was turned by hand, then what device
timofeeve [1]

Answer:

This question doesnt make much sense but ill try to answer it.

A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source. Brushed motors were the first commercially important application of electricity. If the shaft of a DC motor is turned by an external force, the motor will act as a generator. DC Motor rotation does have to do with the voltage polarity and the direction of the current flow.

4 0
3 years ago
What is the scientific notation for the expression 0.0000015 cm
PIT_PIT [208]
1.5 × 10^-6 i would think
3 0
2 years ago
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