Friction is helpful:
- We use it to brake for cars
- We use it to fly planes
-We wouldn't be able to turn a door knob without friction ( Our hand would just slide off it)
Friction harmful:
-Our cars would get much better gas mileage without tire and air friction
- There would be no skinned knees if friction didn't exist (Like when your skating or football)
- We could do some pretty cool dance moves without friction
- Our shoes would last longer without friction
The number of boxes is calculated by dividing the
total mass of hardware boxes by 1.00 kg
<h3>What is a hardware?</h3>
A hardware is a physical component of a system that can be touched and felt.
Because hardware are physical components, they always have a given mass.
Assuming, several hardware each of mass 1.00 kg is available to be chosen from.
Also, assuming that the sum total of the mass of all the hardware is known.
The number of boxes can be calculated as follows:
- total mass of hardware/1.00 kg
Therefore, the number of boxes is obtained by dividing the sum of the mass of the boxes by 1.00 kg.
Learn more about hardware and mass at: brainly.com/question/25698914
Answer:
Neutral atoms can be turned into positively charged ions by removing one or more electrons.
Explanation:
If there is an atom that has 9 protons and 9 electrons, removing an electron from the atom will gain a postive charge.
Answer:
ion - dipole interactions
Explanation:
Ion - dipole interactions -
It refers to the interaction between the ion and a dipole , ( any species which is capable to get produce slight positive and slight negative charge ) , is known as ion - dipole interactions .
Water is a polar compound , and due to more electronegative oxygen atom , it can have slight negative charge and correspondingly , hydrogen atom can attain slight positive charge , and thereby generates a dipole .
Now , from the question,
The salt when dissolved in water , breaks down to ions , cations and anion , and these ions interacts with the polar water molecules , giving rise to the ion - dipole interactions .
Answer:
1.3L/mols
Explanation:
At 30°C the rate constant is 0.010L/mols
As the rate doubles for each 10° rise in temperature:
At 40°:
0.010L/mols*2 = 0.020L/mols
At 50°C:
0.020L/mols*2 = 0.040L/mols
At 60°C:
0.040L/mols*2 = 0.080L/mols
At 70°C:
0.080L/mols*2 = 0.160L/mols
At 80°C:
0.160L/mols*2 = 0.320L/mols
At 90°C:
0.320L/mols*2 = 0.640L/mols
And at 100°C:
0.640L/mols*2 =
1.280L/mols ≅
<h3>1.3L/mols</h3>
