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alekssr [168]
3 years ago
11

What best describes ionization energy?

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
4 0

Answer: energy needed to remove an electron from an atom or ion in the gas phase. Explanation: That is the very definition of ionization energy: ionization energy is the energy needed to remove (get appart) an electron from a neutral atom or ion in gas phase.Jun 19, 2016


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If 10.7 grams of NH4Cl is dissolved in enough water to make 800 mL of solution,what will be it's molarity
olga nikolaevna [1]
<h3><u>Answer;</u></h3>

Molarity = 0.25 M

<h3><u>Explanation;</u></h3>

Molarity is given by moles/Liter.

First we find moles:

Number of moles = Mass /molar mass

= (10.7g NH4Cl)/(53.5g/mol NH4Cl)

= 0.200 moles NH4Cl  

Then  we convert to liters:

= (800mL)*(1L/1000mL) = 0.800L  

Therefore; molarity = 0.2moles/0.8L

                                = 0.25M

6 0
2 years ago
Who can tell me the half reaction about cucumber battery
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6 0
2 years ago
In Part A, you found the amount of product (1.80 mol P2O5 ) formed from the given amount of phosphorus and excess oxygen. In Par
Finger [1]

First step is to balance the reaction equation. Hence we get P4 + 5 O2 => 2 P2O5

Second, we calculate the amounts we start with

P4: 112 g = 112 g/ 124 g/mol – 0.903 mol

O2: 112 g = 112 g / 32 g/mol = 3.5 mol

Lastly, we calculate the amount of P2O5 produced.

2.5 mol of O2 will react with 0.7 mol of P2O5 to produce 1.4 mol of P2O5.

This is 1.4 * (31*2 + 16*5) = 198.8 g

3 0
3 years ago
How many molecules are in 10 moles of Hydrogen?
vivado [14]

Answer:3.2

Mass:32

Molecular weight: 10

Moles: 3.2

8 0
3 years ago
A layer of sediment goes through a series of steps on its way to becoming sedimentary rock. These steps are summarized below. Re
gizmo_the_mogwai [7]

Explanation:

The steps involved in formation of a sedimentary rock are placed in the correct order as follows.

Step 1: The sediment is deposited by wind, flowing water, or other natural processes.

Step 2: The sediment is gradually buried and compacted.

Step 3: Dissolved minerals completely cement the sediment together.

As a result, it leads to the formation of a sedimentary rock.

3 0
3 years ago
Read 2 more answers
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