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babunello [35]
2 years ago
6

Hook GC lsshvrrjvdjscavsbsgd​

Chemistry
1 answer:
Tema [17]2 years ago
6 0

Answer:

I have no idea what that issss

Explanation:

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Which of the following elements has the lowest ionization energy?
larisa86 [58]

Answer:

Rb

Explanation:

Ionization energy is defined required energy to eliminate or remove an electron from an ion or atom.

From the given elements Rb or Rubidium has the lowest ionization energy as it has lowest shielding effect, so it easy to remove electron from it's shell.

The ionization energy generally decreases from top to bottom in groups due to lower shielding effect and outer electrons are loosely packed so easy to remove and increases from left to right across a period because of valence shell stability.

Rubidium has atomic number 37 and lies below than other given elements and also placed in the left side in the periodic table.

Hence, the correct option is Rb

8 0
3 years ago
What is answer and why
chubhunter [2.5K]
D because O3 means oxygen times 3 times it self so you add another oxygen partial it becomes O4
6 0
2 years ago
In a particular reaction, 53.8 g of liquid silicon tetrachloride is added to 65.0 g of solid magnesium to produce solid magnesiu
kotykmax [81]

Answer: Mg is the excess reactant for the forward reaction.

Explanation: It is a stoichiometry problem and solved with the help of given grams and using balanced equation. Grams of both the reactants are converted to moles and divided by their coefficients. The excess reactant is the one for which we get the highest number on doing above steps.

The balanced equation is:

SiCl_4(l)+2Mg(s)\rightarrow 2MgCl_2(s)+Si(s)

Molar mass of silicon tetra chloride is 169.9 gram per mol and the molar mass of Mg is 24.3 gram per mol.

53.8gSiCl_4(\frac{1mol}{169.9g})

= 0.317molSiCl_4

65.0gMg(\frac{1mol}{24.3g})

= 2.67 mol Mg

From balanced equation, the coefficient of silicon tetra chloride is 1 and that of Mg is 2. So, we will divide the moles of silicon tetra chloride by 1 and that of Mg by 2 and see which one gives highest number.

For silicon tetra chloride, \frac{0.317}{1}  = 0.317

and for Mg, \frac{2.67}{2}  = 1.34

The highest number is for Mg and so the excess reactant for the forward reaction is Mg.

7 0
3 years ago
What are 3 benefits of being a part of the microgrid?
mamaluj [8]

Answer:

1.Improves electric reliability.

2.Enhance recovery.

3.Promotes clean energy.

Explanation:

Some people suffering from the darkness still had their lights from facilities with microgrids.Power outages they can be dangerous.Microgrids keep the power flowing by disconnecting.It also generate possibly batteries then the microgrids customers are served until power is restored on the Central grid.

3 0
3 years ago
Identifying map types
Darina [25.2K]

Answer:

Political Map. A political map shows the state and national boundaries of a place. ...

Explanation:

3 0
2 years ago
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