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Vaselesa [24]
3 years ago
10

(40) If a hypothesis is proven correct, a theory is formulated. True or false

Chemistry
1 answer:
Snezhnost [94]3 years ago
8 0

Answer: False, I believe.

Explanation: If a Hypothesis is proven correct, then another experiment to strengthen that Hypothesis is should be done.

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Which happens when a reversible reaction reaches a state of chemical equilibrium?
Trava [24]

Explanation:

Reversible reactions that happen in a closed system eventually reach equilibrium. At equilibrium, the concentrations of reactants and products do not change. But the forward and reverse reactions have not stopped - they are still going on, and at the same rate as each other.

5 0
3 years ago
Read 2 more answers
What happens to the particles during condensation
Paraphin [41]

Answer:

molecus in a gas cool down

Explanation:

the molecules lose heat and energy do they slow down they move closer to other molecules and form a liquid

8 0
3 years ago
El agua del mar contiene aproximadamente un 3,0 % m/v de sal (NaCl, 58,44 g/mol), (asuma que es la única fuente de cloruros) si
Alchen [17]

Answer:

s = 4.41 g/L.

Explanation:

¡Hola!

En este caso, considerando el escenario dado, se hace necesario para nosotros saber que la posible reacción de disociación la experimenta el cloruro de plomo (II) como se muestra a continuación:

PbCl_2(s)\rightleftharpoons 2Cl^-(aq)+Pb^{2+}(aq)

Lo cual hace que la expresión de equilibrio se calcule como:

Ksp=[Pb^{2+}][Cl^-]^2

Y que en términos de la solubilidad molar, s, se resuelve como:

1.6x10^{-5}=s(2s)^2\\\\1.6x10^{-5}=4s^3\\\\s=\sqrt[3]{\frac{1.6x10^{-5}}{4} } \\\\s=0.0159molPbCl_2/L

Ahora, convertimos este valor a g/L al multiplicarlo por la masa molar del cloruro de plomo (II):

s=0.0159molPbCl_2/L*\frac{278.1gmolPbCl_2}{1molmolPbCl_2} \\\\s=4.41g/L

¡Saludos!

7 0
3 years ago
What is an example of land features formed from constructive forces?
elena-14-01-66 [18.8K]

It’s C.valley formed from water erosion

7 0
3 years ago
Which of the following are properties of metalloids?
harkovskaia [24]

Answer:

all of these are properties of metalloids

3 0
2 years ago
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