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jarptica [38.1K]
3 years ago
6

Select the correct answer.

Chemistry
2 answers:
solong [7]3 years ago
6 0

Answer:

It determines how difficult it is to start the reaction.-B.

vlada-n [284]3 years ago
3 0

B. it determines how difficult it is to start the reaction

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NO LINKS!! :)
77julia77 [94]

Answer:

The velocity of ball and man after catching ball is  

Explanation:

Since there is no friction and no external force the momentum is conserved .

Here when man catches ball then man and ball move with common velocity .

3 0
3 years ago
Read 2 more answers
Hope this helps with my last question or I wasted my points
Talja [164]
Anyone else just hate chemistry
5 0
3 years ago
The value of ka for benzoic acid is 6.30×10-5. what is the value of kb, for its conjugate base, c6h5coo-?
Serggg [28]
Benzoic acid release protons in water:
C₆H₅COOH(aq) ⇄ C₆H₅COO⁻(aq) + H⁺(aq).
Benzoic acid conjugate base gain protons in water:
C₆H₅COO⁻(aq) + H⁺(aq) ⇄ C₆H₅COOH(aq).
Ka(C₆H₅COOH) = 6.3·10⁻⁵.
Ka · Kb = 1·10⁻¹⁴.
Kb(C₆H₅COO⁻) = 1·10⁻¹⁴ ÷ 6.3·10⁻⁵.
Kb(C₆H₅COO⁻) = 1.587·10⁻¹⁰.
4 0
4 years ago
Si en un laboratorio hay 300 moles de plomo y 300 moles de plata en cual de los dos casos la masa en mayor?
docker41 [41]

Answer:

Esto significa que la masa en las moles de plomo es mayor que en las de plata.

Explanation:

Las moles de los átomos representan la cantidad de átomos presentes. Para saber la masa de los átomos debemos convertir las moles a gramos usando el peso molecular de cada uno de los átomos (207.2g/mol para el plomo y 107.82g/mol para la plata).

La masa de plomo en 300 moles es:

300 moles * (207.2g / mol) = 62160g de plomo

Y la masa de plata es:

300 moles * (107.82g / mol) = 32346g de plata

<h3>Esto significa que la masa en las moles de plomo es mayor que en las de plata</h3>
4 0
3 years ago
Boron (B): 1sE2sF2pG
Anon25 [30]
1s2 2s2 2p1
so E & F =2
G =1
8 0
3 years ago
Read 2 more answers
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