In a redox reaction, why does an element’s oxidation number decrease?
Answers
Element’s oxidation number decrease that because that element has received electrons from another element
Explanation:
a reduction in oxidation state is known as a reduction. Such reactions include the formal removal of electrons: a net gain in electrons moving a reduction, and a clear loss of electrons being an oxidation.
An oxidation-reduction (redox) reaction is a type of synthetic reaction that involves a transfer of particles between two species. An oxidation-reduction reaction is any synthetic reaction in which the oxidation number of a molecule, atom, or ion quarters by winning or missing an electron.
hope that helps
Related Questions
The pressure of 1 mol of gas is decreased to 0.5 atm at 273 K. What happens to the molar volume of the gas under these conditions?
What mass of sodium nitrate is dissolved in 126 g of a solution that is 14.8% by mass of the compound?
Science fair ideas???
2H2 + O2 mc002-1.jpg 2H2O The number of moles of hydrogen that is needed to produce 0.253 mol of water is
(B)Geiger counter
(C)mass spectrograph
(D)microbalance
(E)electron microscope
Answers
Mass spectrograph is an instrument which is used to determine the relative masses of atoms.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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Answers
Answer:
See the explanation below
Explanation:
Both the cup of coffee and drop of coffee have the Same temperature of 95°C.
Although the difference is the cup of coffee has more heat contained in it than the drop of coffee. An explanation is when we heat a cup of coffee it will take more time to Attain in 95°C while the drop of coffee will take less time
Final answer:
The difference between a cup and a drop of tea at the same temperature is largely related to their different quantities, affecting the heat capacity and cooling rate. The cup has a higher heat capacity and cools down slower, while the drop cools down faster.
Explanation:
The difference between a cup of tea at 95°C and a drop of tea at 95°C is primarily a matter of quantity and its implications on heat capacity and cooling rate.
Both the cup and the drop of tea are at the same temperature, 95°C, however, the cup of tea contains a larger quantity or volume of tea. This means the cup of tea has a higher heat capacity.
What this signifies is that it would take more energy to change the temperature of the cup of tea than the drop of tea. Conversely, the drop of tea, having a lower heat capacity, will cool down faster than the cup. The larger volume and surface area of the cup of tea allows it to contain more heat and thus, lose heat slower than a drop.
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Answers
M1m1 = M2m2
where M1 is the concentration of the stock solution, m1 is the mass of the stock solution, M2 is the concentration of the new solution and m2 is its new mass.
M1m1 = M2m2
.925(m1) = .35(250)
m1 = 94.59 g
Answer: 94.59 grams of 92.5 % by mass solution will be needed.
Explanation:
Mass of sulfuric acid is 250 grams of 35 % by mass solution:
Mass of in 250 g of 35 % solution = 87.5 g
Mass of 92.5 % needed to make 35 % by mass solution.
Mass of the solution required = 94.59 g
94.59 grams of 92.5 % by mass solution will be needed.
by adding valence electrons
by adding or removing protons
by adding or removing neutrons
Answers
Answer: by adding or removing neutrons
Explanation:
Answers
B-Volume decreases as temperature increases
C- Pressure and temperature are inversely proportional
D- Volume increases as temperature increases
Answers
A modern statement of Charles's law is: Whenthe pressure on a sample
of a dry gas is held constant, the Kelvintemperature and the volume will be
directly related.
Choice 'D' looks like the closest one.
While I was answering this question, I discovered something very useful:
I went to the internet, and opened my favorite search engine. (I can't tell
you the name of it on here, but it rhymes with Ploogl.) Then I just typed
'Charles Law' into the little window, and a lot of stuff popped up and told
me everything I wanted to know about it, and a lot more. You could try it.