All categories

2 years ago

What type of charge does each part of an atom have (positive, negative, no charge)

Chemistry

2 answers:

Masteriza [31]2 years ago

6 0

Answer:
P-positive
N-negative
E-no charge

Karo-lina-s [1.5K]2 years ago

6 0

Electrons have negative
neutrons have no change
and protons have a positive

You might be interested in

What career field/job would utilize ppm units

Ierofanga [76]

Jobs in analytical chem tht is because it’s parts per million and when calculating the amount of an element in a mole

4 0

2 years ago

Reduction and oxidation must occur together. The electrons from the oxidized species are transferred to the reduced species. Che

Aneli [31]

Explanation:

When a specie tends to lose electrons in a chemical reaction then it means oxidation has taken place. When a specie tends to gain electrons then it means reduction has taken place.

So, for the given reactions the value of $E_{o}$ are as follows.

$Zn^{2+} + 2e^{-} \rightarow Zn$ , $E_{o} = -0.76 V$

$Cu^{2+} + 2e^{-} \rightarow Cu$ , $E_{o} = 0.34 V$

$\Delta G^{o} = -nFE^{o}_{cell}$

(a) Therefore, according to the given reactions the process is reduction.

(b) Here, n = 2

So, value of $Zn^{2+}$ is as follows.

$\Delta G^{o}_{Zn^{2+}} = -2 \times (-0.76) \times 96500$

= +146680 V

$\Delta G^{o}_{Cu^{2+}} = -2 \times (-0.34) \times 96500$

= -65620 V

(c) As per the calculated values, $Zn^{2+}$ is the best reducing agent and $Cu^{2+}$ is the best oxidizing agent.

Also, more positive is the $E_{o}$ value more good it acts as an oxidizing agent. Hence, it is able to favor reduction.

Therefore, $Cu^{2+}$ will more strongly favor reduction.

7 0

3 years ago

If 3.64g of sand is separated from 5.25g of a mixture of salt and sand what is the percentage of sand in the sample

Mashcka [7]

Total weight of the mixture of sand and salt = 5.25 g
Weight of sand separated = 3.64 g
Weight of the salt in the mixture = (5.25 - 3.64) g
= 1.61 g
Then the percentage of sand in the sample = [(3.64/5.25) * 100] percent
= 69.33%
So the percentage of sand in the total mixture of sand and salt is 69.33%.

7 0

3 years ago

SSA PRACTICE QUESTION

Leto [7]

Answer:

The correct answer is - so that other scientists can replicate the experiment and make sure the results are correct or to check accuracy.

Explanation:

The data and procudres are required to be recorded or noted correctly so the experiment and research can be replicate and tested for the accuracy of the experiment by other scientist and researcher.

Mandy also need to note procedure, data, variables and other data correctly for the testing the accuracy and replication of the experiment. The replication is essential to check if every thing is correct and result are error free.

4 0

2 years ago

What is the empirical formula of a substance that contains 8.33×10−2 mol of carbon, 0.167 mol of hydrogen, and 8.32×10−2 mol of

Olegator [25]

Looks to me like C and O are virtually equal and H is double those, so:

CH_20, which is the empirical formula for carbohydrates.

6 0

3 years ago

Read 2 more answers