CHEMISTRY HIGH SCHOOL

Say you had another object of the exact same material as the previous question. You need to know the volume but the object is irregularly shaped and is much too large for graduated cylinder. However, you know that the mass is 382 g. What is the volume of the object?

Answers

Answer 1
Answer:

Answer:

  • 152.8 cm3

Explanation:

We are given that the material of the object is the same as the previous object

In the previous question, we determined the density of the material is 2.5 g/cm3

We are given the mass of this object is 382 g

To find the volume, we can use the equation:

  • Mass = Density x Volume

Plugging in the values we know:

  • 382 g = (2.5 g/cm3) x Volume

Solving for Volume:

Volume = Mass / Density

  • = 382 g / 2.5 g/cm3
  • = 152.8 cm3

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What is the difference between conductors and insulators

Answers

Explanation:

Conductors and insulators are two types of materials that differ in their ability to conduct electrical current. Here are the key differences between conductors and insulators:

**Conductors:**

1. **Electrical Conductivity:** Conductors are materials that have high electrical conductivity. This means they allow the easy flow of electric charge, typically in the form of electrons. Metals like copper, aluminum, and silver are excellent electrical conductors.

2. **Free Electrons:** Conductors have a large number of free electrons that are loosely bound to their atomic structure. These free electrons can move easily when a voltage is applied, creating an electric current.

3. **Low Resistance:** Conductors have low electrical resistance, which means they offer little opposition to the flow of electric current.

4. **Used for Wiring:** Conductors are commonly used in electrical wiring and circuits to transmit electricity efficiently.

**Insulators:**

1. **Electrical Insulation:** Insulators are materials that have low electrical conductivity. They do not allow the easy flow of electric charge. Examples of insulators include rubber, glass, plastic, and wood.

2. **Tightly Bound Electrons:** Insulators have tightly bound electrons in their atomic structure. These electrons are not free to move, so they do not contribute to the flow of electric current.

3. **High Resistance:** Insulators have high electrical resistance, which means they strongly resist the flow of electric current.

4. **Used for Insulation:** Insulators are used to isolate and protect conductors in electrical systems. They are employed as insulating materials in wires, cables, and electrical devices to prevent electrical leakage and ensure safety.

In summary, conductors allow electric current to flow easily due to the presence of free electrons and low resistance, while insulators inhibit the flow of electric current because their tightly bound electrons and high resistance prevent the movement of charge. These differences make conductors suitable for carrying electricity, while insulators are used to insulate and protect conductive materials in electrical systems.

Which compound contains both ionic and covalent bonds?(1) ammonia
(2) methane
(3) sodium nitrate
(4) potassium chloride

Answers

Answer is (3)- Sodium Nitrate.

Normally ionic bonds can be seen betweenmetals and non-metals while covalentbonds present betweennon-metals. Another thing that determines the bond nature is electronegativityvalue of the atoms.If the electronegativity differenceis high, then that bond tends to be an ionic bond.
 
Sodium nitrate consists of Na⁺ and NO₃⁻ ions. Hence, the bondbetween Na⁺ and NO₃⁻ is an ionicbond. 

NO₃⁻ is made from N and O. Both are non-metallicatoms. The electronegativities of N and O are 3.0 and 3.5 respectively. Hence, there is nobig difference betweenelectronegativity values (3.5 - 3.0 = 0.5). Hence, the bondbetween N and O is a covalentbond. 

Compound (3) sodium nitrate contains both ionic and covalent bonds.

Compound (3) sodium nitrate contains both ionic and covalent bonds. Sodium nitrate consists of the ions Na+ and NO3-, where the bond between Na+ and NO3- is predominantly ionic, and the bond within the NO3- ion is covalent. The sodium ion (Na+) donates an electron to the nitrate ion (NO3-), resulting in an ionic bond. However, within the nitrate ion, the nitrogen (N) and oxygen (O) atoms share electrons, forming covalent bonds.

Learn more about compound here:

brainly.com/question/11635939

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Answer THIS QUESTION

Answers

Answer:it is 580

Explanation:

I had the answer on my quiz

The direct change of a substance from a solid to a gas is called ____.a. evaporation
c. condensation
b. sublimation
d. solidification

Answers

The direct change of a substance from a solid to a gas is called sublimination. 

The answer to your question

b. sublimation

You put two open cans of soda on the table. You took one can from the refrigerator and the other from your car. When you open them, which can of soda will lose the carbon dioxide more quickly and why?

Answers

The soda can from the car will lose CO2 more quickly. This is because of the kinetic energy and behavior of gas molecules under different temperatures. CO2 is more soluble in cold temperatures than hot. Cold temperatures minimize the kinetic energy of gas molecules; thus, preventing the gas from escaping the soda. This is why soda that comes from the refrigerator has more fizz or spirit than soda at room temperature.

What is the mass of NH4Cl that must dissolve in 200 grams of water at 50 degrees c to make a standard solution?

Answers

Answer:

The mass is 104 grams.

Explanation:
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