3 years ago

What most likely occurred during this demonstration?

Chemistry

1 answer:

Katena32 [7]3 years ago

7 0

Answer:

Hydrogen gas and a salt formed at the end of the reaction.

Explanation:

Hydrogen Gas has formed which inflated the balloon

Usually, metals and acids react to form a salt and Hydrogen Gas.

Here's what happened:

Zn (s) + 2HCl (aq) → $ZnCl_2$ (aq) + $H_2$ (g)

Cheers :)

You might be interested in

Express the product of 2.2 mm and 6.00 mm

spayn [35]

Just do 6 x 2.2
6 x 2.2 = 13.2

7 0

4 years ago

Read 2 more answers

Which of the following is an example of CHEMICAL weathering? (select all

larisa86 [58]

Rust on a rock that contains iron
Mineral absorbs water and changes into a new substance

5 0

3 years ago

What is the maximum number of electrons that an L shell may contain?

kirill [66]

Answer:

Eight

Explanation:

The L shell only holds eight electrons.

5 0

3 years ago

Read 2 more answers

Assume the alveolar radii are 0.05 and 0.07 mm towards the end of exhalation. Knowing that air flows from high to low pressures,

xeze [42]

Answer:

$0.286 mN/m^2$

Explanation:

Using Laplace's law of surface tension:

$P=\frac{2T}{r}$

where:

P = pressure

T = surface tension

r = radius

In the longer alveoli with radius of 0.07 mm = $0.07*10^{-2}m$ ; we have:

P = $\frac{2*25mN/m}{0.07*10^{-2}m}$

P = $0.714 mN/m^2$

In the smaller alveoli with radius 0.05 mm = $0.05 * 10^{-2} m$ ; we have:

P = $\frac{2*25mN/m}{0.05*10^-2m}$

P = $1.00 mN/m^2$

The pressure difference can now be calculate as follows:

Pressure difference = $(1.00 - 0.714)mN/m^2$

Pressure difference = $0.286 mN/m^2$

5 0

3 years ago

Which three elements affect air pressure?

Sloan [31]

A sorry if it’s wrong good luck

8 0

3 years ago