Which of the following are likely to not form bonds? A gold atoms.b. Oxygen atoms.
c. neon atoms.
d. magnesium and chlorine atoms.

Answer:

The answer is 7 g/mL

Explanation:

The density of a substance can be found by using the formula

From the question

mass = 70 g

volume = 10 mL

We have

We have the final answer as

7 g/mL

Hope this helps you

Answer:

1. Sand Casting: Sand casting is a popular method used to create pewter objects. Here's how it's achieved:

- First, a pattern or model of the desired object is created using materials like wood, plastic, or metal.

- The pattern is then pressed into a special type of sand called green sand, leaving an impression.

- Next, the pattern is removed, leaving a cavity in the sand.

- Molten pewter is poured into the cavity and left to cool and solidify.

- Once cooled, the sand is carefully removed, revealing the pewter object.

2. Spin Casting: Spin casting, also known as centrifugal casting, is another way to mold pewter. Here's how it works:

- A rubber mold of the object is created, usually using a master pattern made of wax or another material.

- The rubber mold is placed in a casting machine that rotates at high speed.

- Molten pewter is poured into the mold while it spins.

- The centrifugal force evenly distributes the pewter, filling the mold's cavities.

- As the pewter cools, it solidifies and takes the shape of the mold.

- Once cooled, the mold is opened, and the pewter object is removed.

3. Die Casting: Die casting is a method used for producing high-quality pewter objects. Here's how it's done:

- A metal mold, called a die, is created to match the desired shape of the object.

- Molten pewter is injected into the die under high pressure.

- The pressure ensures that the pewter fills the mold completely and captures all the intricate details.

- After a short cooling period, the die is opened, and the pewter object is ejected.

Explanation:

These are just a few ways to form or mold pewter. Each method has its advantages and is suitable for different types of objects. It's important to choose the appropriate method based on the complexity of the design and the desired quality of the final product.

Answer: 1) absorbed

Explanation:

As a chemical bond is formed either by transfer of electrons or sharing of electrons, in order to break the forces of attraction among atoms, energy must be absorbed.

Energy is produced or released when  a chemical bond is formed.

Energy is never destroyed, it converts from one form to another.

To break a chemical bond, energy must be .

Further explanation:

The attraction existing between atoms and molecules that facilitate the formation of various chemical compounds is termed as a chemical bond. It is formed either due to electron transference or by electron sharing between the bonded atoms. The chemical bond formed as a result of electron transfer from one atom to another is known as an ionic bond. The bond formed by the mutual sharing of electrons is called a covalent bond.

Endothermic process

The basic meaning of “endo” is “in”. These processes need energy from the surroundings, generally in the form of heat. Photosynthesis, evaporation of water, sublimation of dry ice, and melting of ice are some of the examples of endothermic processes.

Exothermic process

The general meaning of “exo” is “out”. These processes release energy from the system to the surroundings in the form of heat. Combustion of fuels, thermite reactions, nuclear reactions, and neutralization reactions are some examples of exothermic processes.

Since bond breaking is an endothermic reaction, energy must be supplied or absorbed from the surroundings to the system. Therefore, option (1) is the correct answer.

Learn more:

1. Which of these is an extensive property? brainly.com/question/1398514
2. Which of the phase changes is an exothermic change? brainly.com/question/1875234

Answer details:

Grade: High School

Chapter: Chemical reactions

Subject: Chemistry

Keywords: chemical bond, ionic bond, covalent bond, exothermic, endothermic, in, out, heat, photosynthesis, melting of ice, thermite reactions, neutralization reactions.