How do the bonds within AND between a water molecule affect the properties of water?

Answers

Answer 1

Answer: Water is a polar molecule, meaning the covalent bonds in it share electrons unequally. They spend more time around the oxygen, making it positive and the hydrogens negative. This helps water stick to surfaces, a property called adhesion. The hydrogens of one molecule are also attracted to the oxygens of another. This is called cohesion, and it helps water form droplets

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The kinetic molecular theory helps explain relationships between

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gases, energy, temperature, phases.

It explains the relationships between molecules of gases, liquids and solids.

A gas is initially at a pressure of 225 kPa and a temperature of 245 K in a container that is 4.5 L. If the gas is compressed to a volume of 2.1 L and the temperature changes to 275 K, what is the new pressure?

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Use the ideal gas equation PV=nRT. You can compare before and after using P1V1/n1T1=P2V2/n2T2. Since the number of moles remains constant you can disregard moles from the equation and use pressure, volume and temp. Make sure your pressure is converted to atmospheres, your volume is in liters, and your temperature is in kelvins.

In which substance do the molecules have the strongest attractions to one another?a. sugar, a solid
c. sulfuric acid, a liquid
b. hydrogen, a gas
d. water, a liquid

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The substance that the molecules have the strongest attractions to one another is the sugar, a solid. The answer is letter A. The solid has a more definite shape and volume. The particles are locked into place. It cannot be further compressed due to the bond that exists between the molecules. The kinetic energy of the molecules is close to none because the molecules are so close and so compact with each other.

Answer:

Explanation:

The table below gives information about the nucleus of each 4 atoms Atom Number of protons Number of neutrons

A 6 6

D 6 7

G 7 7

E 7 8

How many different elements are represented by the nuclei in the table?

A 1

B 2

C 3

D 4

Answers

Atom Number of protons Number of neutrons. 2 elements are represented by the nuclei in the table

What is the difference between atomic number and atomic mass ?

Atomic number of an element is defined as total number of protons present in the nucleus, neutrons carry no net electrical charge, so it is the charge number of the nucleus.

atomic mass of an element can be defined as the atomic weight is measured total mass of an element’s atom, the total number of neutrons and protons in the nucleus of an atom.

Both Atomic mass and an atomic number of elements are closely related if atomic number is high, then the atomic mass is also said to be high.

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Answer:

Explanation:

BECAUSE IT IS B.

Describe the theory of plate tectonics

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Answer:

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.

Explanation:

From Google

7 km is equal to:

700 m
0.7 m
7,000 m
70 m

Answers

7000m is the answer as 1 km is 1000m ...so 7km multiplied by 1000m u get 7000 m...and always remember if u r converting a bigger unit to a smaller unit u multiply and if u r converting a smaller unit to a bigger unit u divide

Answer:7,000m

Explanation:

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A light twig is barely floating on the surface of water. What will most likely happen to the twig if a drop of dishwashing detergent is added near it?It will float easily because soap disrupts the intermolecular forces of water.It will sink because soap increases the intermolecular forces of water.It will sink because soap disrupts the intermolecular forces of water.It will float easily because soap increases the intermolecular forces of water.