Which electron transition involves the most energy

How can you make a solution saturated

uysha [10]

I believe the answer is b

4 0

3 years ago

Read 2 more answers

I just need help on the reactivity series stuff please I need to pass my grade check HELP

Setler [38]

Reactivity series:-

$\setlength{\unitlength}{0.8 cm}\begin{picture}(20,15)\thicklines\put(5,9.5){\large {\boxed{ \sf{Reactivity \: series}}}}\put(0.8,8){\large\sf K \qquad\qquad\qquad Potassium\qquad\qquad\qquad \: maximum}\put(0.8,7.2){\large\sf Na \qquad\qquad\qquad Sodium\qquad\qquad\qquad\quad \: reactivity}\put(0.8,6.2){\large\sf Ca\qquad\qquad\qquad \: Calcium}\put(0.8,5.2){\large\sf Mg\qquad\qquad\quad \: Magnesium}\put(0.8,4.2){\large\sf Al\qquad\qquad\qquad \: Aluminium\qquad\qquad\qquad \: decreasing}\put(0.8,3.2){\large\sf Zn\qquad\qquad\quad\qquad \: Zinc\qquad\qquad\qquad\qquad \:reactivity}\put(0.8,2.2){\large\sf Fe\qquad\qquad\quad\qquad Ferrous}\put(0.8,1.2){\large\sf Pb\qquad\qquad\qquad \: \:\: Lead}\put(0.8,0.2){\large\sf H\qquad\qquad\qquad \: \:Hydrogen}\put(0.8, - 0.6){\large\sf Cu\qquad\qquad\qquad \: Copper}\put(0.8, - 1.5){\large\sf Hg\qquad\qquad\qquad \: Mercury}\put(0.8, - 2.5){\large\sf Ag\qquad\qquad\qquad \: \:Silver}\put(0.8, - 3.5){\large\sf Au\qquad\qquad\qquad \: \: Gold\qquad\qquad\qquad\quad \: \: minimum reactivity}\put(9.3,8.2){\vector(0, - 2){12}}\end{picture}$

#1

Ag is found as too less reactive so

Cu✓
Al✓
Ca✓

#2

No element in universe can displace potassium (K) from its solution as it's most reactive .

Nota

#3

Fe is also a reactive metal.

Only Cupper is less reactive than it

So

Al✓
Ca✓

#4

Only Calcium can displace Mg

#5

Mg and Ni can do ,Aurum(Gold) is least reactive so can't

#6

Only Mg

#7

Only Mg

#8

Mg and Ni

#9

Only Zn

#10

Zn and Pt

#11

Nota

As Ca is third most reactive metal

#12

Nota

4 0

3 years ago

The formation of protons over neutrons (thus producing about a 7:1 ratio) was favored in the early universe because:____.

tatiyna

Because it requires more energy to create a neutron from a proton than it does to create a proton from a neutron, protons were formed more frequently than neutrons in the early universe. The correct answer is option b.

To find the answer, we need to know more about the early universe.

<h3>How the formation of proton over neutrons was favored in the early universe?</h3>

A neutron is produced with greater energy than a proton.
However, later on, some of the protons were changed into neutrons.
Contrary to some claims, the proton is a stable particle that never decays, but the neutron is unstable outside of the nucleus and decays with a half life of around 10.5 minutes.
However, very few would have had time to decay on the timeline you mention in your question.
Every matter particle should have been accompanied by an antimatter particle, and every proton, neutron, and electron, by an anti-neutron and a positron, respectively.
Where did all the antimatter go is the great mystery. There have been a few attempts to explain this, but they have failed.

Thus, we can conclude that, the correct answer is option b.

Learn more about the early universe here:

brainly.com/question/28130096

#SPJ1

7 0

2 years ago

Which element is oxidized in the following reaction: 2FeCl₂ + Cl₂→2FeCl₃ if Fe goes from + 2 to +3 and Cl goes from 0 to −2?

Blizzard [7]

Answer:

Fe.

Explanation:

The element which is oxidized is the element that losses electrons and its oxidation state be more positive.

The element which is reduced is the element that gain electrons and its oxidation state be more negative.

Fe goes from + 2 to +3, so, it is the element that is oxidized.

3 0

3 years ago

If the same amount of heat is supplied to samples of 10.0 g each of aluminum, iron, and copper all at 15∘C , which sample would

MaRussiya [10]

Aluminum because it’s specific heat capacity is the highest

4 0

3 years ago