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WARRIOR [948]
4 years ago
14

I need help with my chemistry homework please & thank u

Chemistry
1 answer:
lisov135 [29]4 years ago
5 0

Answer:

6) solid- dots close together

liquid- a little bit farther apart than solid

gas- far apart

7) the movement of anything from a higher area of concentration to an area of lower concentration.

8) B. evaporation

9) The solute is the thing being dissolved, the solvent is the thing dissolving it, and the solution is the product of the solute and solvent.

10) D. regular brewed coffee

*I'm not exactly sure on #10 but I hope I could've helped a little at least

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A saturated solution prepared at 70∘C contains 32.0 g CuSO4 per 100.0 g solution. A 350 −g sample of this solution is then coole
Roman55 [17]

Answer:

Explanation:

 gram of Copper sulphate in 350 g solution is 32 x 3.5 = 112

in term of mol = 112 / 159.5 = 0.7022

after crystallisation, gm of copper sulphate in the solution

= 43.75

in term of mole

43.75/159.5 = 0.2743

mole that got precipitated in hydrated form = 0.7022 - 0.2743 =0.4279

in terms of gm of hydrated copper sulphate = .4279 x mol weight of hydrated copper sulphate = .4279 x 249.5 = 106.76 g .

7 0
4 years ago
Read 2 more answers
Plz help me plz will give Brainly
Alenkinab [10]

Explanation:

a brittle, High melting solid : option B (MgCl2).

1) H2S

2) H2O

3) I2

weakest to strongest.

hope this helps you.

4 0
3 years ago
Si el número atómico del Flúor es 9 y su masa atómica 19, ¿cuántos electrones, protones y neutrones, tiene? Justifique con formu
ValentinkaMS [17]

La respuesta correcta es  e) 9, 9 y 10

Explicación:

En general, la composición de los átomos incluye electrones (carga negativa), protones (carga positiva) y neutrones (carga neutra). Además, la masa atómica se refiere al número en conjunto de neutrones y protones, mientras que el número atómico define el número de protones. Es decir que masa atómica = número de protones o número atómico más de número de electrones. Además, en un átomo de carga neutra el número de electrones y protones es neutra.

De acuerdo a esto, número de protones o número atómico + número de neutrones = masa atómica

9 (número de protones) + número de neutrones = 19 (masa atómica)

número de neutrones = 19 (masa atómica) - 9 (número de protones)

número de neutrones = 10

Además, el número de protones = número de electrones por lo que 9 protones significa que hay 9 electrones

Es decir, que el número de electrones es 9, el número protones es 9, y el número de neutrones es 10

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4 years ago
Where on a bicycle might you find a pulley?
Akimi4 [234]
I would say the chain rings
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3 years ago
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Observe the concentrations of the hydronium ions(H3O+), hydroxide ions(OH-), and water (H2O) in the “Water Components” chart on
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