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yulyashka [42]
3 years ago
5

Zinc metal can be obtained from Zinc Oxide by reaction at high temperature with CO. The CO is obtained from burning C in limited

oxygen.
a) Write the balanced equation for the above reactions
b)What is the amount of Zn that can be obtained from 75g of zinc oxide and 50g of Carbon​
Chemistry
1 answer:
bonufazy [111]3 years ago
3 0

Answer:

(a): 2ZnO(s) -----------> 2Zn(s) + O2(g)

2C(s) + O2(g) ---------> 2CO(g)

(b): ZnO(s) + C(s) ---------> Zn(s) + CO(g)

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Which planetary body was spirit designed to explore
blsea [12.9K]
Spirit designed to explore Planet Mars. It was for NASA's Mars Exploration Rover or MER mission which is an ongoing mission which includes two Mars rovers named Spirit and Opportunity. This is to discover the Martian surface and geology of the Planet Mars.
6 0
3 years ago
The density of water is about 1.0 g/mL at room temperature. Briefly explain how the density of an aqueous solution at room tempe
maksim [4K]

Answer:

The density of water is about 1.0 g/mL at room temperature.

Briefly explain how the density of an aqueous solution at room temperature can be significantly less than 1.0 g/mL.

Give an example of such a solution.

Explanation:

That means 1.0mL of water weighs ---- 1.0g

If any other aqueous solution which has mass less than 1.0g will have density less than 1.0g.

For example aqueous solution of sulfuric acid has density 0.98g/mL.

That means 1mL of sulfuric acid has mass 0.98g.

7 0
3 years ago
Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different. They also have som
Alexxandr [17]

Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different, scientist can conclude from this observation that they are serially homologous.

<h3>What are serially homologous?</h3>

Serial homologous organs or structures are those that are structurally similar but have been modified to perform distinct functions.

As rodents and rabbits both have some similar functions and some changes in the skeletal structure, so that they both are serially homologous.

Hence scientist conclude that rodents and rabbits are serially homologous animals.

To know more about serially homologous, visit the below link:
brainly.com/question/20577219

#SPJ1

6 0
1 year ago
Which has the strongest conjugate base?
aleksandr82 [10.1K]

Answer:

Phenol.

Explanation:

Hello there!

In this case, for this question about the strength of the resulting conjugate base, it is possible for us to know that the higher the Ka (stronger aid) the weaker the conjugate base. In such a way, since the phenol has the smallest Ka (weakest acid) we infer that it has the strongest conjugate base.

In addition to the aforementioned, the reason why phenol was the answer is because the Kb of its conjugate base is the greatest due to the Kb=Kw/Ka and thus, the smaller the Ka the bigger Kb.

Regards!

5 0
3 years ago
What is the instantaneous rate of formation of product C given the following information: a. Stoichiometric equation A+ B2C+ D b
quester [9]

Answer:

1.728 mol /(L*min)

Explanation:

Hello,

In the attached photo, you'll find the numerical procedure for your question.

- Take into account that the negative sign is eligible for reagents and positive for products.

Best regards!

6 0
3 years ago
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