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d1i1m1o1n [39]
3 years ago
10

What properties are those that describe what happens when a substance reacts with another substance? catalyst properties chemica

l properties physical properties mineral properties?
Chemistry
2 answers:
8090 [49]3 years ago
5 0
............ chemical properties.........
Liono4ka [1.6K]3 years ago
5 0

Answer:

Chemical properties,

Explanation:

Let us understand all the given terms

a) catalyst properties: this is the property of a substance by virtue of which it helps to modulate the rate of reaction, and itself remains unconsumed during the reaction (does not react). Example : enzymes

b) chemical properties: this is the property of a substance by virtue of which it reacts with another substance to give a new product of different structure, bonding, chemical and physical properties.

Example : hydrogen reacts with oxygen to give water.

So here the hydrogen is undergoing reaction with oxygen and this is chemical property of hydrogen.

c) Physical properties: This is the property which is related to the nature of a substance to exit in nature. for example hydrogen is a gas is its physical property not chemical.

d) mineral properties: It  is again a kind of physical property.

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In general, if a reaction is spontaneous, the reactants possess more free energy than the products.
Inga [223]

In general, if a reaction is spontaneous, the reactants possess more free energy than the products.  

<u>TRUE  </u>

FALSE

6 0
3 years ago
In each case, decide if the change is a "chemical change" or a "physical change". a) A cup of household bleach changes the color
Crazy boy [7]

Answer:A cup of household bleach changes the color of your favorite T-shirt from purple to pink. - chemical change

Water vapor in your exhaled breath condenses in the air on a cold day.- physical change

Plants use carbon dioxide from the air to make sugar.- chemical change

Butter melts when placed in the Sun- physical change

Explanation:

A chemical change leads to the formation of a new substance and is not easily reversible. A physical change does not lead to the formation of a new substance and is easily reversible. Physical changes include condensation, melting,etc while a chemical change is a chemical reaction.

8 0
3 years ago
Which electron in magnesium is most shielded from nuclear charge?
natali 33 [55]
An electron in the 3s orbital. The order of electron orbital energy levels starting from lowest to highest is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.
3 0
3 years ago
Read 2 more answers
What is the volume of 4.00 moles of CO2 gas at STP?
likoan [24]

Answer:

89.6L

Explanation:

1mole of any gas occupies 22.4L. This simply means that,

1mole of CO2 occupies 22.4L at stp.

Therefore, 4moles of CO2 will occupy = 4 x 22.4 = 89.6L

8 0
2 years ago
How many liters of O2 at 298 K and 1.00 bar are produced in 1.50 hr in an electrolytic cell operating at a current of 0.0200 A?
stellarik [79]

Answer: 0.0069L

Explanation:

2H2O(l) ---->O2(g) + 4H+(aq) + 4e-

no of moles= it/eF

NO of moles of O2 produced = (Current in Ampere x Time in second)/ (Faraday constant x Number of electrons required)

Moles of O2 produced = (0.02x (60 x 60X1.5 s)/(96485 x 4)

= 0.0002798 moles= 2.798x 10 ^-4moles

Using  ideal gas equation,

P V = n R T

Where, P is the pressure,

V is the volume,

n is the number of moles,

R is the gas constant, and T is the temperature

We have, 1 bar = 0.986923 atm

Substituting the values,

V = nRT/P = (2.798 x 10-4moles x 0.08205 L atm mol K x 298 K)/ 0.986923 atm = 0.0069L

Volume of O2 produced = 0.0069L

7 0
3 years ago
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