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DedPeter [7]
3 years ago
11

URGENT WILL GIVE POINTS I NEED SOON!!!!

Chemistry
1 answer:
gayaneshka [121]3 years ago
6 0

Answer:

gas is this: a substance (such as oxygen or hydrogen) that is like air and has no fixed shape. : a gas or mixture of gases that is burned as a fuel.

Explanation:

Gas is one of the four fundamental states of matter. A pure gas may be made up of individual atoms, elemental molecules made from one type of atom, or compound molecules made from a variety of atoms. A gas mixture, such as air, contains a variety of pure gases.

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If an automobile travels at 30. m/s for 2 minutes, how far has the car traveled?
Nesterboy [21]

3600 miles! to get this answer you first need to know that  

60+60= 120  

then just times tht by 30 and you get 3600!

4 0
4 years ago
Which of the following aqueous solutions are good buffer systems?
JulsSmile [24]

0.29 M ammonia + 0.38 M ammonium bromide and 0.22 M hypochlorous acid + 0.18 M hydroiodic acids of aqueous solutions are good buffer systems.

<h3>Buffer Systems:</h3>

A solution that resists pH change when acids or bases are added to it is referred to as a buffer system. Either a weak acid and its salt, or a weak base and its salt, make up buffer systems. The ratio of HX/X- does not considerably alter when an acid or a base is introduced to a buffer.

Solutions known as buffers withstand pH changes when an acid or base is added. A weak base (A) and its conjugate weak acid (HA) are both present in buffers. When a reactive system is in equilibrium, adding a strong electrolyte with one common ion will cause the equilibrium to shift, lowering the concentration of the common ion. Buffers differ from one another in terms of pH range and buffer capacity.

Learn more about buffers here:

brainly.com/question/1385846

#SPJ1

5 0
2 years ago
When a runner participates in a marathon, they travel a distance of 26.2 miles. How many kilometers is
jolli1 [7]

Answer:

Around 42.2 Km

Explanation:

7 0
3 years ago
Select the compounds that cannot undergo friedel crafts alkylation. check all that apply. check all that apply. aniline phenol k
mr Goodwill [35]

Freidal craft reaction is the attack of a carbon or carbon chain on aromatic ring with the help of anhydrous AlCl3 to produce alkylated benzene ring.

Only ketone not be able to undergo friedal craft reaction as, it is not aromatic compound whereas all the given reactants are aromatic and gives friedal craft reaction.

5 0
4 years ago
What is the free energy change if the ratio of the concentrations of the products to the concentrations of the reactants is 22.3
snow_lady [41]

The free energy change(Gibbs free energy-ΔG)=-8.698 kJ/mol

<h3>Further explanation</h3>

Given

Ratio of the concentrations of the products to the concentrations of the reactants is 22.3

Temperature = 37 C = 310 K

ΔG°=-16.7 kJ/mol

Required

the free energy change

Solution

Ratio of the concentration : equilbrium constant = K = 22.3

We can use Gibbs free energy :

ΔG = ΔG°+ RT ln K

R=8.314 .10⁻³ kJ/mol K

\tt \Delta G=-16.7~kJ/mol+8.314.10^{-3}\times 310\times ln~22.3\\\\\Delta G=-8.698~kJ/mol

8 0
4 years ago
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