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3 years ago

What type of wave produces sound?

1 answer:

5 0

El sonido es una onda que se crea por vibración y se propaga a través de un medio de un punto a otro. De modo que es basicamente una onda mecánica longitudinal.

Es una onda mecánica pues necesita un medio para propagarse,

You might be interested in

How do you solve pH and pOH?

ehidna [41]

Picture credit - Google images

whenever you have problem for ph and poh just make this table and go from there .

Ph = 14 - Poh

Poh = 14- Ph

8 0

4 years ago

Ammonia gas and oxygen gas react to form water vapor and nitrogen monoxide gas. What volume of water would be produced by this r

NikAS [45]

Answer:

Water volume produced is 7.3 mL

Explanation:

This the reaction:

4NH₃ (g) + 5O₂ (g) → 4NO (g) + 6H₂O (g)

We have to work with density, to solve this question

Density of ammonia = Ammonia mass / Ammonia volume

0,00073 g/mL = Ammonia mass / 6300 mL

(Notice, we had to convert 6.3L to mL)

0.00073 g/mL . 6300 mL = Ammonia mass → 4.599 g

Mass / Molar mass = Mol

4.599 g / 17g/m = 0.270 mole

Ratio is 4:6

4 mole of ammonia produce 6 mole of water

0.270 mole produce (0.270 .6)/4 = 0.405 mol

Molar mass . mole = mass

18 g/m . 0.405 m = 7.30 g

Water density = 1 g/mL

Water density = Water mass / Water Volume

1g/mL = 7.30 g / Water volume

Water volume = 7.3 mL

5 0

3 years ago

9. Carbon-14 has a half-life of 5,730 years. How many years have passed after 3<br> half-lives?

ella [17]

Answer:

120 gram sample of a radioactive element, how many grams of that element will be left after 3 half-lives have passed? If you have a 300

Explanation:

Hope this helps!

7 0

3 years ago

Vitamins are food.<br> True OR False

Serga [27]

Answer: Hello!

False

Explanation:

hope you do good!they are in ur food though

6 0

3 years ago

Read 2 more answers

I need an answer for this multiple-choice

Alekssandra [29.7K]

Answer:

is equal to the number of protons in carbon (C).

6 0

3 years ago