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katrin [286]
2 years ago
14

7. Which metal is more easily oxidated, copper or aluminum?

Chemistry
1 answer:
vredina [299]2 years ago
7 0

Answer:

alumimum

Explanation:

Aluminum oxidation happens faster than that of steel, because aluminum has a really strong affinity for oxygen. Rather than flaking though, aluminum oxide just forms a hard, whitish-colored surface skin. When all the aluminum atoms have bonded with oxygen the oxidation process stops.

hope this answers your question.

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Fe2o3 + 3C —> 2Fe +3CO
Anika [276]

Answer:

1. iron(III) oxide

2. 8

3. 8

Explanation:

Know the naming rules

Reactants on left side products on right side

3 0
4 years ago
A 38.8 gram piece of metal absorbs 181J as it temperature increases from 25.0 degree celsius to 36.0 degree celsius. What is the
sashaice [31]

Answer: 0.424 J/g°C

Explanation:

For this problem, we would have to manipulate the equaiton for heat, q=mCT. Specific heat is the C in the equation. Since we are looking for specific heat, we manipulate the equation so that it says C=.

C=\frac{q}{m(deltaT)}

*I didn't know how to type in delta so I just wrote the word delta, but pretend you see a Δ.

Now that we have our equation, we can plug in our values and solve.

C=\frac{181J}{(38.8g)(36-25°C)}

*Please ignore the capital A in the equation. It pops up every time I type in the ° sign.

C=0.424J/g°C

6 0
4 years ago
Consider the following chemical reaction in equilibrium. CH3COOH Double headed arrow. CH3COOâ€""(aq) H (aq) What will happen to
Rashid [163]

The addition of magnesium chloride to the solution results in unaffected chemical equilibrium of the system. Thus, option A is correct.

The given chemical equation has been:

\rm CH_3COOH\;\leftrightharpoons\;CH_3COO^-\;+\;H^+

The reaction is reversible and can be converted back to the reactant with the increase in the product concentration. The equilibrium has been the condition when the concentration of products and reactants in the reaction are equal.

With an increase in products or reactants, there has been a corresponding chemical shift in the equilibrium.

The addition of Magnesium chloride in the solution, results in the dissociation of compound as:

\rm MgCl_2\;\rightleftharpoons \;Mg^+\;+\;2\;Cl^-

The compound results in neither the increase of reactants, nor increase of product concentration in the acetic acid equilibrium.

Thus, the equilibrium of the system will remain unaffected by the addition of magnesium chloride. Thus, option A is correct.

For more information about equilibrium shift, refer to the link:

brainly.com/question/25964464

6 0
3 years ago
Complete the table by checking the correct column(s) for each description.
Vesnalui [34]

Answer:

7. isotonic

8. hypertonic

9. hypotonic

10. isotonic

11. hypotonic

12. hypertonic

8 0
3 years ago
Hello! Im in a unit exam right now and i really need help! Who ever answers this gets brainliest
worty [1.4K]

low r value thats the answer nice to help u

6 0
3 years ago
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