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2 years ago

If an atom of the following element had a neutral charge, how many electrons would it have?

Chemistry

1 answer:

Yakvenalex [24]2 years ago

8 0

Answer:

Explanation:

In order for an atom to have a neutral charge, it needs to have the same number of protons and electrons. You can see by the illustration that the atomic number is 31, so this element has 31 protons. Knowing that, we also know that it must have 31 electrons to be neutral.

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if the theoretical yield of a reaction is 26.0 grams and you actually recovered 22.0 grams what is the precent yield

netineya [11]

Percentage Yield = (Actual Yield ÷ Theoretical Yield) × 100

∴ if theoretical yield is 26 g, but only 22.0 is recovered from the reaction,
then Percentage Yield = (22 g ÷ 26 g) × 100
= 84.6 %

8 0

3 years ago

Which of the following scientists was the first to determine the

Maru [420]

Answer:

Robert Boyle

Explanation:

Robert Boyle was an Irish chemist and is famously referred to as the first modern chemist. He was born on the 25th of January, 1627 in Lismore, Ireland and died on the 31st, December 1691, London, United Kingdom.

Robert Boyle was the first to determine the relationship between the pressure and volume of a gas.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

$PV = K$

$P_{1}V_{1} = P_{2}V_{2}$

Where;

V1 and V2 represents the initial and final volumes respectively.

T1 and T2 represents the initial and final temperatures respectively.

8 0

2 years ago

Please help me in this question?

gavmur [86]

The answer is B

Explanation:

Can you mark brainliest I correct

6 0

2 years ago

Which statement describes the condition in which diamonds form?

eduard

I think it's A but it might be different from your school and mine

4 0

2 years ago

Read 2 more answers

How are large polymers formed? by repetitive combinations of simple subunits by the addition of halogens to a small molecule by

Gre4nikov [31]

Answer:

How are large polymers formed? by repetitive combinations of simple subunits by the addition of halogens to a small molecule by combining a few different and larger molecules by combining many different and smaller molecules

Explanation:

6 0

1 year ago