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Stolb23 [73]
3 years ago
8

A. What colors are exhibited by chromium in its common oxidation states?

Chemistry
1 answer:
Lelu [443]3 years ago
6 0

Answer:

Blue, orange and green

Explanation:

Three different colors are observed from compounds containing different oxidation states of chromium: +2 (blue), +3 (green), and +6 (orange).

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When a substance is in the process of changing phases states of matter what happens to the temperature
Reptile [31]

Answer:

Temperature stays constant.

Explanation:

During a phase change, the temperature does not change. Temperature will only change when a phase change is completed.

8 0
2 years ago
4
matrenka [14]

Answer:

Yes.

Explanation:

Yes, this difference of readings will definitely affect the results of the experiment as well as the E values because the readings taken by both students are different from one another. There is a fault in one of the thermometer because both shows different readings of temperature of the same solution. This will affect the overall experiment and due to this error, we are unable to tell that which one reading is correct so the answer is uncertain or unsure.

5 0
2 years ago
A mole is the amount of a substance that contains as many particles as the number of atoms in 12 grams of what isotope?
ioda
The <span>12C</span><span> isotope.  Hope this helps.</span>
3 0
3 years ago
Someone help please i am stuck on this
daser333 [38]

Answer:

33.5

Explanation:

the lowest point which is 33.5

pls mark brainlest

8 0
3 years ago
Write a chemical equation showing how this is an acid according to the Arrhenius definition. Express your answer as a balanced c
mylen [45]

Answer:

HC_2H_3O_2_{(aq)}\rightarrow H^+_{(aq)}+C_2H_3O_2^-_{(aq)}

Explanation:

Arrhenius theory:-

The Arrhenius theory was introduced introduced by Swedish scientist named Svante Arrhenius in 1887.

According to the theory, acids are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a proton or the hydrogen ion, H^+.

So,

The expression for acid, HC_2H_3O_2 is:-

HC_2H_3O_2_{(aq)}\rightarrow H^+_{(aq)}+C_2H_3O_2^-_{(aq)}

6 0
3 years ago
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