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vivado [14]
3 years ago
5

Select all the correct answers.

Chemistry
1 answer:
pantera1 [17]3 years ago
6 0

Answer:

The correct answer is the charges of the positive and negative copper ions cancel each other out.

Explanation:

A copper metal having no net charge means that it is a neutral atom. A neutral atom means that total number of protons is equal to the total number of electrons.

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chemist in South America claims to have discovered a new element with an atomic number of 34. An extremely rare element, it was
Tasya [4]

Answer:

the element he has discovered is called Selenium.

Explanation:

Selenium has an atomic number of 34

7 0
3 years ago
How many moles of methanol are required to produce 4.19 moles of water
Harrizon [31]

Explanation:

every two moles of methanol will need three moles of oxygen gas and products 2 miles of carbon dioxide and 4 miles of water

6 0
3 years ago
In our simulation what did the σ (sigma) stand for?
jenyasd209 [6]

Answer:

The atomic radius corresponds to Sigma

Explanation:

It is the Van Der Waals radius ;)

3 0
2 years ago
The balls in a modeling kit representing different elements are often distinguished by color. however, there are other ways to i
nika2105 [10]

The size of the atoms a and the number of holes in the atoms can be used to decode the element.

<h3>What are models?</h3>

A model is a miniature depiction of reality. Molecular models often consists of boxes that contain balls which are used to represent elements. In common parlance, the color is used to show the type of element.

Apart from the color, the size of the atoms a and the number of holes in the atoms can be used to decode the element.

Learn more about molecular models:brainly.com/question/156574

#SPJ1

5 0
2 years ago
According to the website of the National Aeronautics and Space Administration (NASA), the average temperature of the universe is
charle [14.2K]

Answer : The temperature in degree Celsius is, -270.45^oC

Explanation :

The conversion used for the temperature from Kelvin to degree Celsius is:

^oC=K-273.15

where,

K = temperature in Kelvin

^oC = temperature in centigrade

As we are given the temperature in Kelvin is, 2.7

Now we have to determine the temperature in Kelvin.

^oC=K-273.15

^oC=2.7-273.15

^oC=-270.45

Therefore, the temperature in degree Celsius is, -270.45^oC

3 0
3 years ago
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