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posledela
3 years ago
10

What is a pure substance and mixture

Chemistry
1 answer:
pogonyaev3 years ago
6 0

Answer: A pure substance is a substance which has a constant composition, that is it is homogeneous in nature. It therefore has consistent properties.

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Which organism is a producer? A:owl B:mouse C:grass D:snake please somebody help me
ArbitrLikvidat [17]

Answer:

I think it's C. Grass. :)

7 0
3 years ago
Read 2 more answers
Which element is oxidized in the reaction below? fe(co)5 (l) + 2hi (g) fe(co)4i2 (s) + co (g) + h2 (g)?
DanielleElmas [232]
Oxidation state of I is (-1) and for CO it is zero. Let's assume that the oxidation state of Fe in Fe(CO)₄I₂<span> (s) is x. For whole compound, the charge is zero.

Sum of oxidation numbers in all elements = Charge of the compound.

Here we have 1Fe , 4CO and 2I
hence we can find the oxidation state as;
 x + 4*0 + 2*(-1) = 0
 x + 0 - 2            = 0
                   x     = +2
Hence the oxidation state of Fe in product </span>Fe(CO)₄I₂ (s) is +2.

Same as we can find the oxidation state (y) of Fe in Fe(CO)₅(s).
y + 5*0 = 0
   y        = 0

Since oxidation state of Fe increased from 0 to +2, the oxidized element is Fe in the given reaction.
5 0
3 years ago
Something that is made out of natural resources for human use is called
ANEK [815]

Answer:

Man-made resources

Explanation:

Humanized resources are items or substances that have value to human lives that do not occur in the natural world. Examples of man-made resources include plastic, paper, soda, sheet metal, rubber and brass. These contrast with natural resources, such as water, crops, sunlight, crude oil, wood and gold.

6 0
3 years ago
If a solution has virtually no hydrogen ions what type of ph does it have?
lora16 [44]
D. It has almost no hydrogen ions, therefore it is very basic.
7 0
4 years ago
Read 2 more answers
Explain hydrogen bonding.
denis23 [38]

Answer:

Hydrogen bonding, interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons; such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces. Hydrogen bonds can exist between atoms in different molecules or in parts of the same molecule.

Explanation:

3 0
3 years ago
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