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3 years ago

What does wave velocity mean?

Chemistry

2 answers:

lidiya [134]3 years ago

5 0

Wave velocity refers to speed, but can also be speed and direction.

Trava [24]3 years ago

3 0

When a pulse travles though a medium

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OMG GUESS WHAT GUYS YAYAYA

Firdavs [7]

Answer:

What What What

Explanation:

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3 years ago

72.0 grams of water how many miles of sodium with react with it?

Flura [38]

Answer:

$\large \boxed{\text{8.00 mol}}$

Explanation:

We will need a balanced chemical equation with masses, moles, and molar masses.

1. Gather all the information in one place:

Mᵣ: 18.02

2Na + H₂O ⟶ 2NaOH + H₂

m/g: 72.0

2. Moles of H₂O

$\text{Moles of H$_{2}$O} = \text{72.0 g H$_{2}$O} \times \dfrac{\text{1 mol H$_{2}$O}}{\text{18.02 g H$_{2}$O}} = \text{3.996 mol H$_{2}$O}$

3. Moles of Na

The molar ratio is 2 mol Na/1 mol H₂O.

$\text{Moles of Na} = \text{3.996 mol H$_{2}$O} \times \dfrac{\text{2 mol Na}}{\text{1 mol H$_{2}$O}} = \textbf{8.00 mol Na}\\\\\text{The water will react with $\large \boxed{\textbf{ 8.00 mol}}$ of Na}$

7 0

3 years ago

What element is always present in an organic compound.

Andreyy89

Carbon is always present in an organic compound

3 0

3 years ago

What is the frequency of a 4,600 cm wave?

ddd [48]

The frequency of a 4,600 cm wave is 652 Hz

Frequency is the number of waves that pass a fixed point in unit time

Here given data is

Wave = 4,600 cm = 4.6 × 10⁸ nm

We have to calculated frequency = ?

Frequency =v = c/λ

Frequency = 3×10⁸m / 4.6 × 10⁸ nm

Frequency = 652 Hz

Know more about frequency

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2 years ago

1. A chemical equation representing a physical change is

Marysya12 [62]

Answer:first one is chemical change and the second one is chemical reaction that sh be right.

Explanation:

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4 years ago