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GaryK [48]
3 years ago
8

Which of the following is a product formed when K reacts with Cl2?

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
6 0

Answer: KCl

Explanation: Potassium [K]  has an atomic no of 19 and the electronic configuration is:

K :1s^22s^22p^63s^23p^64s^1 tends to get stable by losing one electron and forming K^+

Chlorine [Cl] has atomic no of 17 and thus the electronic configuration is :

Cl :1s^22s^22p^63s^23p^5 tends to get stable by gaining one electron and forming Cl^-

K^+ and Cl^- attract each other and form an ionic bond. As we have a chlorine molecule that is two atoms of chlorine are present, 2 atoms of potassium will react to form 2 moles of KCl.

2K+Cl_2\rightarrow 2KCl


Stels [109]3 years ago
3 0
The answer is A. 
Which is... KCI
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What temperature should vegetables be cooked at to hold them hot?
shtirl [24]

Answer:

135°F

Fruits and vegetables that are cooked for hot holding must be cooked to a temperature of 135°F (57.2 °C).

Explanation:

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4 0
2 years ago
How much heat is given off when 869 g iron bar cools from 94 degrees celsius to 5
melomori [17]

Answer:

Heat given off was -34.34kJ

Explanation:

Mass of iron bar = 869g

Initial temperature (T1) = 94°C

Final temperature (T2) = 5°C

Specific heat capacity of iron (c) = 0.444J/g°C

Heat energy (Q) = Mc∇T

Q = heat energy

c = specific heat capacity

∇T = change in temperature

M = mass of the substance

Q = mc∇T

∇T = T2 - T1

Q = Mc(T2 -T1)

Q = 869 * 0.444 * (5 - 94)

Q = 385.836 * -89

Q = -34339.404J

Q = -34.34kJ

The heat given of was -34.34kJ

4 0
3 years ago
Los hermanos Ana Victoria y José Leonardo están patinando en el hielo, con 25 y 20 kg respectivamente de masa, si Victoria empuj
andreyandreev [35.5K]

Utiliando las leyes de Newton encontraremos que la aceleración de Ana es -1.6 m/s^2.

La segunda ley de Newton dice que:

F = m*a

Fuerza es igual a masa por aceleración.

La tercera ley de Newton dice que cuando dos objetos interactuan, cadan objeto ejerce una fuerza de <u>igual magnitud pero opuesta direccion</u> en el otro.

Ahora veamos como aplicar esto.

Sabemos que la niña empuja al niño, asumamos que con una fuerza F.

Tendremos entonces la ecuación:

F = 20kg*(2m/s^2) = 40N

Y por la tercer ley de Newton, esta misma fuerza (pero en opuesta dirección) se aplica a la niña, entonces tendremos:

-40N = 25kg*a

-40N/25kg = a = -1.6 m/s²

La aceleración con la que retrosede la niña es -1.6 m/s²

Sí quieres aprender más, puedes leer:

brainly.com/question/17123407

3 0
3 years ago
Experiments show that each of the following redox reactions is second-order overall: (1) NO2(g) + CO(g) → NO(g) + CO2(g) (2) NO(
MatroZZZ [7]

Answer:

a) rate law1 = k[NO2]²

b) rate law2 = k[NO][O3]

Explanation:

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NO(g) + O3(g) → NO2(g) + O2(g)

When [NO2] in reaction 1 is doubled, the reaction quadruples

Rxn is second order.

rate law1= [NO2]^a [CO]^b

rate law1= [NO2]² [CO]^0

rate law1 = k[NO2]²

When [NO] in reaction 2 is doubled, the rate doubles.

Rxn is first order

The ratio is 1:1

this makes the rate law2 = k[NO][O3]

6 0
3 years ago
Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use?
Alexeev081 [22]

The answer is A() nitrogen-fixing bacteria

it converts nitrogen it kind of says it in the name

7 0
3 years ago
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