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2 years ago

What term describes the length of one complete wave cycle?

Chemistry

2 answers:

mrs_skeptik [129]2 years ago

8 0

Answer: Wavelength

Explanation:

natka813 [3]2 years ago

7 0

Answer:

Explanation:

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Which ocean zone lies inside V-shaped ocean trenches? O A. Bathypelagic O B. Abyssopelagic Ο Ο Ο Ο O C. Mesopelagic O D. Hadalpe

alisha [4.7K]

Answer:

O D. Hadalpelagic is the answer.

5 0

3 years ago

Are all single bonds sigma bonds?

Nikolay [14]

Single bonds are those that bond with one atom, and sigma bonds are the strongest type of covalent bonds that are single bonded.

That means NO, not all single bonds are sigma bond, but all sigma bonds are single bonds.

6 0

3 years ago

2KCIO3 -2KCL + 302

Firlakuza [10]

Answer:

a. 6 moles of O₂

b. 4.06×10²⁴ molecules of O₂

c. 3.04 g of KCl

Explanation:

Reaction of decomposition is:

2KClO₃ → 2KCl + 3O₂

a. See stoichiometry value

2 moles of potassium chlorate can decompose to 2 moles of potassium chloride and 3 moles of oxygen. Ratio is 2:3

If 2 moles of KClO₃ can decompose to 3 moles of O₂

Then 4 moles, may decompose to (4 . 3)/2 = 6 moles of O₂

b. In this case, the stoichiometry is the same.

Per 2 moles of KClO₃, I produce 2 moles of KCl

Then, 4.5 moles of KCl, were produced by 4.5 moles of KClO₃

We apply, the last relation:

(4.5 . 3) /2 = 6.75 moles of O₂ are also produced.

How many molecules are in 6.75 moles?

6.75 mol . 6.02×10²³ molecules/mol = 4.06×10²⁴ molecules of O₂

c. First of all, we convert the mass to moles:

5g . 1mol /122.55g = 0.0408 moles of salt

As ratio is 2:2, 0.0408 moles of salt, decompose to 0.0408 moles of KCl

We convert the moles to mass: 0.0408 mol . 74.55g /mol = 3.04g

5 0

2 years ago

If 0.089 grams of KI is dissolved in 500g of H2O, what is the concentration of the resulting solution in parts per million?

frez [133]

Answer:

The concentration of the resulting solution in parts per million is 177.97

Explanation:

Parts per million (ppm), is a unit of measure for concentration that refers to the number of units of the substance per million units of the set.

The concentration in parts per million expressed in mass / mass is calculated by dividing the mass of the solute (ms) by the mass of the solution (md, sum of the mass of the solute and the mass of the solvent), both expressed in the same unit and multiplied by 10⁶ (1 million).

$ppm=\frac{ms}{md} *10^{6}$

So, being:

ms: 0.089 grams of KI

md: 0.089 grams of KI + 500 grams of H₂O= 500.089 grams

Replacing:

$ppm=\frac{0.089 grams}{500.089 grams}*10^{6}$

ppm= 177.97

<u><em>The concentration of the resulting solution in parts per million is 177.97</em></u>

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3 years ago

WIll give brainliest! : In the following Punnett square, what is the phenotypic percentages of the offspring? From dwarfism slid

e-lub [12.9K]

Answer:

75% will have long legs and 25% will have short legs

Explanation:

5 0

2 years ago