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Serhud [2]
3 years ago
11

The atomic number of Zn2+ gives us the information about

Chemistry
1 answer:
mezya [45]3 years ago
7 0

Answer:

Zinc(2+) is a divalent metal cation, a zinc cation and a monoatomic dication. It has a role as a human metabolite and a cofactor.

Explanation:

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3. Given the Lewis electron-dot diagram:
madam [21]

Answer:

1) the carbon and hydrogen valence electrons

Explanation:

The lewis dot diagram illustrates how electrons are arranged round atoms in a molecule. The dots represents the;

1) the carbon and hydrogen valence electrons

4 0
2 years ago
Match each processes with the correct transfer of energy.
sveticcg [70]

freezing-energy lost (exothermic)

sublimation-energy gain (endothermic)

evaporation- energy gain(endothermic)

Melting- energy gain(endothermic)

deposition- energy lost(exothermic)

condensation-energy lost(exothermic)

7 0
3 years ago
The overall reaction in a chemical cell is shown below as the reaction takes place (look in image)
GREYUIT [131]
According to provided equation it is clear that Zn metal is oxidized from Zn⁰ into Zn²⁺ which means that Zn metal dissolves and forming Zn²⁺ solution so the correct answer is:
mass of the Zn(s) electrode decreases

8 0
3 years ago
Write the chemical formulas and names for the following ionic compounds. Strontium and hydroxide
anygoal [31]

Answer:

Sr(OH)2

Explanation:

Strontium hydroxide, Sr(OH)2, is a caustic alkali composed of one strontium ion and two hydroxide ions. ... Sr(OH)2 exists in anhydrous, monohydrate, or octahydrate form.

8 0
2 years ago
Assume that a normal curve is a good model for this data set. If 10,000 more observations were collected, what percentage of the
skad [1K]

The percentage of the area under the normal distribution curve would lie above 98.02 on the x-axis is 2.5 % , option C is the answer.

<h3>What is Normal Distribution ?</h3>

Normal Distribution is a probability distribution which is symmetric about the mean , The frequency is more near the mean and less far from the mean.

It is given in the data that

10,000 more observations were collected

the percentage of the observations would be greater than 98.02 = ?

According to the 68-95-99.7 rule,

It states that approximately

68% of the observations lie within σ of µ

95% of the observations lie within 2σ of µ.

99.7% of the observations lie within 3σ of µ.

The percentage of the observation between various intervals is attached in the image in the answer.

2.1 percent of the population is distributed in the intervals between two and three standard deviations , which is the zone above 2SD and below 3SD.

As 2.1 % is approximate , Therefore from the given option , 2.5%

The percentage of the area under the normal distribution curve would lie above 98.02 on the x-axis is 2.5 % , option C is the answer.

To know more about Normal Distribution

brainly.com/question/15103234

#SPJ1

5 0
2 years ago
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