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IRINA_888 [86]
2 years ago
6

7) Which element would have the lowest first ionization energy? * Li Be Na Mg

Chemistry
2 answers:
olga_2 [115]2 years ago
7 0

Answer:

Dos quintos al cuadrado dividido cinco medios a la menos 1.

Explanation:

Vera_Pavlovna [14]2 years ago
6 0

Answer:

Na which is sodium.....

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Final Temperature in Heating Applesauce. A mixture of 454 kg of applesauce at 10°C is heated in a heat exchanger by adding 12130
jok3333 [9.3K]

Answer:

T_f = 76.46°C

Explanation:

Given data:

Mass of mixture = 454 kg

Initial temperature is 10°C

Heat added is Q = 121300 kJ

Heat capacity (Applesuace) at 32.8°C is 4.02kJ/kg K

From heat equation we have

Q = mCp(T_f -T_i)

\frac{Q}{mCp} = (T_f -T_i)

T_f = T_i + \frac{Q}{mCp}

Putting all value to get required final temperature value

T_f = \frac{121300}{454\times 4.02} + 10

T_f = 76.46°C

7 0
3 years ago
1. The volume of a gas is 10.0 liters and its temperature is 1500 K. If the temperature is
cupoosta [38]

Answer:

5 L

Explanation:

So this problem refers to Charles's law. You would use this formula..

\frac{V_{I} }{T_{I} }  = \frac{V_{F} }{T_{F} }   (Initial volume / Initial Temperature) = (Final volume / Final Temperature)

For your problem, it would look like this...

\frac{10L}{1500k} = \frac{V_{F} }{750k}

You would cross multiply and your answer would be 5L.

To reassure yourself that the answer is correct, Charles law states that the Volume and the Temperature are directly proportional. Meaning if your temperature is decreasing, your volume <u>has</u> to decrease.

5 0
2 years ago
How many moles are in 19.82 g Mg?
vekshin1
I think it’s 24.305? Not sure
4 0
3 years ago
In the following reaction, how many liters of oxygen will react with 270 liters of ethene (C2H4) at STP? C2H4(g) + 3O2(g) 2CO2(g
lara31 [8.8K]
A, I believe it is 810liters of oxygen! Please correct me if im wrong
3 0
2 years ago
Read 2 more answers
How many electrons, protons, neutrons, and what is the atomic number and atomic mass (if any) does Fluoride have?
ExtremeBDS [4]
Fluoride is an anion of Fluorine

What this means is that the two have the same number of protons (9), but Fluoride has 10 electrons compared to Fluorine's 9.

So the answers are:
Protons - 9
Neutrons - 9
Electrons - 10
Atomic Number - 9
Atomic Mass - 19 g/mol
5 0
3 years ago
Read 2 more answers
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