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Tems11 [23]
4 years ago
15

What is the answer if u know please answer

Chemistry
1 answer:
forsale [732]4 years ago
7 0
An atom having 52 protons and 54 electrons would have an atomic number of 52 and a net charge of -2. This element would be 52 Te 2-, or choice A.
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I have to see the simulation
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3 years ago
The arrangement of the elements from left to
maria [59]
It is bases on "Atomic number"

In short, Your Answer would be Option B

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5 0
4 years ago
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A chemical reaction in a lab experiment actually produces 1.23mol of BeBr2. The theoretical yield is 220g. To two decimal places
Mashutka [201]

Answer:

Percent yield = 94.62%

Explanation:

Given data:

Actual yield of BeBr₂ = 1.23 mol

Theoretical yield of BeBr₂ = 220 g

Percent yield = ?

Solution:

Theoretical yield in moles:

Number of moles = mass/molar mass

Number of moles = 220 g/168.82 g/mol

Number of moles = 1.30 mol

Percent yield:

Percent tiled = actual yield / theoretical yield × 100

by putting values,

Percent yield = 1.23 mol / 1.30 mol × 100

Percent yield = 0.9462 × 100

Percent yield = 94.62%

5 0
3 years ago
Which of the following best describes elements?
sukhopar [10]

Explanation:

Elements are distinct substances that cannot be split-up into simpler substances. Such substances are made up of only one kind of atom.

  • Elements are classified as pure substances.
  • They are homogeneous  in all parts.
  • They have a definite composition.
  • They cannot be split or broken into simpler substances by physical means.
  • There are over a hundred known elements.
  • Elements are usually symbolized by a capital letter or capital letter followed by a smaller letter derived from the English or Latin or Greek name of the element concerned.

learn more:

Element brainly.com/question/2572495

#learnwithBrainly

6 0
4 years ago
Energy is added in the form of heat to a pot of water on the stove. This causes the water to
Monica [59]
The energy would increase

b) increase kinetic energy
4 0
3 years ago
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