All categories

3 years ago

Check all reasons why a book was used.

1 answer:

4 0

We can confirm that for the experiments regarding Boyle's law, the book was used to increase pressure on the gas and add additional weight.

<h3>Why is the book used in these experiments?</h3>

The book is used for the reasons described in options 1 and 2 of the question. The book supports additional weights on the container, meaning that through these added weights we can increase the pressure being applied to the gas and see how said pressure affects the volume of a gas.

Therefore, we can confirm that the book was used to increase pressure on the gas and add additional weight.

To learn more about Boyle's law visit:

brainly.com/question/1437490?referrer=searchResults

You might be interested in

Una disolución contiene 50 gramos de KOH en 0.25 L de Determine la Molaridad de la disolución

snow_tiger [21]

Answer:

1. 3.56 M.

2. 0.99 M.

Explanation:

¡Hola!

1. En este caso, dado que la molaridad de una solution es calculada por medio de la siguiente ecuación:

$M=\frac{n}{V}$

Es posible calcular la molaridad de 50 gramos de hidróxido de potasio primero calculando las moles en dicha masa por medio de la masa molar:

$n=50.0gKOH*\frac{1molKOH}{56.11gKOH}=0.891molKOH$

Luego, dado el volumen de la solución, podemos calcular la molaridad:

$M=\frac{0.891mol}{0.25L}=3.56M$

2. En este segundo ejercicio, procedemos de la misma manera, pues primero calculamos las moles de nitrato de potasio:

$n=75gKNO_3\frac{1molKNO_3}{101.1gKNO_3}=0.742mol$

Luego, calculamos la molaridad justo como se hizo anteriormente:

$M=\frac{0.742mol}{0.35L} \\\\M=0.99M$

Best regards!

3 0

3 years ago

M= 2 kg, a = 2 m/s^2. <br><br> Find F

saul85 [17]

Answer:

Explanation:

8 0

3 years ago

Hydrogen gas and aqueous zinc chloride are produced by the reaction of aqueous hydrochloric acid and solid zinc . Write a balanc

Ymorist [56]

<em>1. Write out all the ions/elements and indicate whether they are reactants or products. </em>

<u>Reactants:</u>

Aqueous Hydrochloric Acid: HCl (H has a charge of +1 and Cl has a charge of 1-, so when an ionic bond forms they will form HCl).

Solid Zinc: Zn (since it is a solid zinc with no other forms of elements, the zinc is pure).

<u>Products:</u>

Hydrogen gas: H2 (it has to be H2 because Hydrogen is a diatomic element, and when by itself during reactions, will be H2 instead of H).

Aqueous Zinc Chloride: ZnCl2 (Zn has a charge of 2+ and Cl has a charge of 1-, so through an ionic bond, they will form ZnCl2).

<em>2. Using this information, you can then write out the unbalanced equation.</em>

HCl + Zn -> H2 + ZnCl2

<em>3. Next, indicate their states of matter and any aqueous solutions. </em>

HCl (aq) + Zn (s) -> H2 (g) + ZnCl2 (aq)

<em>4. Try different numbers until you get the same numbers of H, Cl, and Zn on both sides. </em>

2 HCl (aq) + Zn (s) -> H2 (g) + ZnCl2 (aq)

As you can see, the equation contains 2 Hydrogen atoms on both sides, 2 Chloride atoms on both sides, and 1 Zinc atom on both sides. The equation is chemically balanced.

5 0

4 years ago

Pure water at 25°C has a pH of<br> (1) 1 (2) 5 • (3) 7<br> (4) 14

Marysya12 [62]

Answer:

7. .........................

8 0

3 years ago

Solid magnesium has mass of 1300g and a volume of 743cm . what's the density of magnesium?

Lilit [14]

D = m / V

d = 1300 g / 743 cm³

d = 1.749 g/cm³

3 0

3 years ago