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3 years ago

M → M+ + e- reduction or oxidation?

Chemistry

1 answer:

Julli [10]3 years ago

4 0

That would be oxidation.

Oxidation is loss of electrons
Reduction is gain of electrons

You might be interested in

How many moles are in 345g of Re

andre [41]

Answer:

The number of mole is 1.852moles

Explanation:

To calculate the number of mole, using the formula

n = m/Mm

n - number of mole

m - number of mass

Mm - number of molar mass

The molar mass of Re = 186.207

Then, n = 345g/ 186.207g/mol

n = 1.852mol

4 0

3 years ago

Carbon and hydrogen will bond together to form a molecule which type of bond will they form and how will they form that bond

viva [34]

Answer:

the bond formed is covalent bond....

Explanation:

here,

carbon and hydrogen are both non-metals ,

hence the bond between them is formed by sharing of electron hence it's a covalent bond.

i hope it helped .......

3 0

2 years ago

Calculate the amount of energy when water at 72 degrees c freezes completely at 0 degrees c

gtnhenbr [62]

Answer:

The amount of energy needed when water at 72 degrees c freezes completely at 0 degrees c is $6.37\times10^4$ Joules

Explanation:

$Q = m \times c \times \Delta T$

where

$\Delta T$ = Final T - Initial T

$Q_{1}=100 g \times 4.184 \frac{J}{g^{\circ} \mathrm{C}} \times\left(72^{\circ} \mathrm{C}-0^{\circ} \mathrm{C}\right)$

$Q_1$ =30125J

Q is the heat energy in Joules

c is the specific heat capacity (for water 1.0 cal/(g℃)) or 4.184 J/(g℃)

m is the mass of water

mass of water is assumed as 100 g (since not mentioned)

$Q_2$ is the heat energy required for the phase change

$Q_2$ =mass × heat of fusion

$\\$Q_{2}=100 g \times 336 \frac{J}{g}$\\\\$Q_{2}=33600 J$$

Total heat = $Q_1 + Q_2$

Total Heat = 30123J + 33600J

= 63725 J

= $6.37\times10^4$ Joules is the answer

3 0

3 years ago

ASAP what is an electron cloud

Bad White [126]

Explanation:

An electron cloud is the region of space that surrounds the nucleus of an atom under the nucleus of the negatively charged sub-atomic particles.

An atoms is made up of some particles.
The proton is positively charged and it is located in the nucleus of an atom.
The neutrons do not carry any charges and occupies the nucleus with protons.
Electrons are the negatively charged particles outside the nucleus.
The electron cloud is portion of an atom with greatest probability of finding an electron.

Learn more:

Electron cloud brainly.com/question/1832385

#learnwithBrainly

8 0

2 years ago

How many moles of calcium are there in 5.74 x 1022 atoms of calcium?

igor_vitrenko [27]

Answer:

0.095 moles of Calcium is there in 5.74 x 1022 atoms of calcium.

Explanation:

As we know, 6.023*10^23 atoms of an element is equal to its atomic weight.

And, 6.023*10^23 atoms of an element is also equal to 1 mole of the element.

We have,

6.023*10^23 atoms of element calcium equals to 1 mole of Calcium
5.74*10^22 atoms of element calcium equals to

(1/(6.023*10^.23)) * 5.74*10^22 moles of calcium

Therefore,

5.74 x 1022 atoms of calcium= 0.095 moles of calcium.

6 0

3 years ago