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3 years ago

What’s a chemical property

Chemistry

1 answer:

abruzzese [7]3 years ago

6 0

Answer:

A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity. ... They can also be useful to identify an unknown substance or to separate or purify it from other substances.

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An area with an average annual temperature of more than 64°F and greater than 59 inches of annual rainfall would be an example o

aalyn [17]

Answer:

Based on the temperature and rainfall, it is the tropical

5 0

3 years ago

Read 2 more answers

Help asap - chemistry, will mark brainlyest

melisa1 [442]

Answer:

Error percentage = 1.326% , 1.35% , 5.37%

density = mass / volume

For first sample:

density = 37.22/11.5 = 3.2365 g/ml

then percentage error = 100% - (3.2365/3.28 ) * 100 = 1.326%

For second sample:

density = 37.21/11.5 = 3.2356 g/ml

then percentage error = 100% - ( 3.2356 / 3.28 ) *100 = 1.35%

For third sample:

density = 37.25/12 = 3.104 g/ml

then percentage error = 100% - ( 3.104 / 3.28 ) *100 = 5.37%

3 0

3 years ago

An article in Science News stated, "Noble gases are snobs." What did the author mean?

eduard

Answer:

Explanation:

Noble gases occupy the last group of the periodic table

They have fully filled valence electron shell

What this means is that they have attained stability and thus do not take part in chemical bonding that usually invloves the transfer or sharing of electrons

Thus, noble gases are snobs because they do not partake in chemical bonding with atoms of other elements or atoms of theirselves

8 0

1 year ago

If carbon dioxide is broken down. what element will it give?

katrin2010 [14]

Carbon dioxide is CO2...if it’s broken down it will be C and O which are carbon and oxygen

7 0

3 years ago

[Co(H2O)6]2+(aq) + 4Cl-(aq) ⇌ [CoCl4]2-(aq) + 6H2O(l)

pav-90 [236]

Answer:

For A: The expression for $K_{eq}$ is given below.

For B: The value of $K_{eq}$ at 25°C is 0.0185512

For C: The value of $K_{eq}$ at 65°C is 0.2887886

For D: The reaction is endothermic in nature.

Explanation:

For A:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{eq}$

For the given chemical reaction:

$[Co(H_2O)_6]^{2+}(aq.)+4Cl^-(aq.)\rightleftharpoons [CoCl_4]^{2-}(aq.)+6H_2O(l)$