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3 years ago

You'll be given 100 points if you answer this question!!!!!!!!!!!!

Chemistry

1 answer:

storchak [24]3 years ago

5 0

Answer:conducts ,steel, polystyrene, thermal insulation

Explanation:

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How many grams are in 657 L of N2 gas at STP?

skad [1K]

Answer:

821.25gm

Explanation:

volume = 657

no of mole = 657/22.4

mass = no of mole * molecular mass

mass = 657/22.4*28

= 821.25gm

4 0

3 years ago

A chemist makes 620 mL of barium chloride working solution by adding distilled water to180mL of a 1.39mol/L stock solution of ba

Svetllana [295]

Answer:

0.404 mol / L

Explanation:

The total moles of barium chloride can be calculated from the volume and concentration of the stock solution:

1.39 mol/L * 0.180 L = 0.2502 moles barium chloride

Now we calculate the concentration of the working solution, by dividing the total moles by the final volume:

0.2502 mol / 0.620 L = 0.404 mol / L

6 0

4 years ago

Read 2 more answers

Under certain conditions, the substance hydrobromic acid can be broken down to form hydrogen and bromine.

Lerok [7]

Answer:

1. 24.7g of Br2

2. 19.9g of HCl

Explanation:Please see attachment for explanation

7 0

4 years ago

Hydrochloric acid and sodium hydroxide can be combined to form sodium chloride and water. Which best explains the reaction? The

Bogdan [553]

Answer:

The statement "The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water." is true due to the Law of Conservation of Mass which states that matter cannot be created nor destroyed.

6 0

3 years ago

Read 2 more answers

e average bond order is the number of bonds between two atoms taking into account resonance. Draw a Lewis structure for ozone an

sineoko [7]

Answer:

See Explanation

Explanation:

Resonance is a valence bond terminology which is used to describe a situation in which a single structure is not able to fully describe the nature of bonding in a molecule.

In such cases, we invoke more than one structure. Each structure contributes significantly to our understanding of the nature of bonding in the molecule under consideration and these structures are called canonical or resonance structures.

The real structure of the molecule is somewhere in between these structures - a resonance hybrid.

For ozone, two equivalent structures can be used to describe the bonding in the molecule. These structures are equivalent as shown in the mage attached. We can see from these structures that the bond order in ozone is 1.5(one and half bonds)

5 0

3 years ago