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Nat2105 [25]
3 years ago
15

A ____usually requires calculations that are too complicated to do byhand. ​

Chemistry
1 answer:
liraira [26]3 years ago
8 0

Answer:

computer model

Explanation:

Computer models are cheaper to set up than alternative methods that could be used to predict what will happen in a system, ex. building a prototype. Other benefits include being able to: make alterations and quickly see the outcomes.

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Classify each of the following substances:
Keith_Richards [23]

Explanation:

Carbon dioxide is a polar molecule whose positive center is on the carbon atom: This positive center is able to attract (and accept) the lone electron pairs present on the oxide ion (O2-). carbon dioxide is acts as a Lewis acid

A Lewis acid can accept a pair of electrons from a Lewis base. The boron in BF3 is electron poor and has an empty orbital, so it can accept a pair of electrons, making it a Lewis acid. A Lewis acid is defined as an electron-pair acceptor.

In CO molecule, there is a lone pair on both carbon and oxygen. The substance which can donate an electron pair are called Lewis base. It is clear that CO molecule can donate an electron pair and hence, it is a Lewis base. Also, CO can be BOTH a Lewis acid and base.

Oxygen is a Lewis base (that too a weak one), not a Lewis acid. REASON: It has lone pair of electrons, which can be donated to electron-deficient species (Lewis acids).

Methane is Neither a Lewis Acid or Lewis Base.

5 0
3 years ago
1.25 moles of NOCl were placed in a 2.50 L reaction chamber at 427ºC. After equilibrium was reached, 1.10 moles of NOCl remained
kenny6666 [7]

Answer:

5.6 × 10^4

this is ur answer hope it helps u

5 0
3 years ago
State relationship between the level of dissolved oxygen and water temperature
Artemon [7]
More dissolved oxygen is present in water with a lower temperature compared to water with a higher temperature. The reason for this inverse relationship between dissolved oxygen and temperature is that the solubility of a gas in a liquid is an equilibrium phenomenon.
8 0
3 years ago
How many atoms are in 22 grams of copper metal?
strojnjashka [21]
Atomic mass Cu = 63.546 a.m.u

63.546 g ---------------- 6.02x10²³ atoms
22 g --------------------- ??

22 x (6.02x10²³ ) / 63.546 => 2.08x10²³ atoms

hope this helps!
6 0
3 years ago
Which measure of a gas does the expression nRT represent? (1 point)
DaniilM [7]
The Ideal Gas Equation
The term pVnRT is also called the compression factor and is a measure of the ideality of the gas. An ideal gas will always equal 1 when plugged into this equation……
7 0
2 years ago
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