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Dmitry_Shevchenko [17]
2 years ago
13

True or False: Increasing the amplitude changes the wavelength.

Chemistry
1 answer:
dem82 [27]2 years ago
5 0

Answer:

False

Explanation:

Amplitude does not affect wavelength

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28. A gas exerts pressure at 5atm at 300K. What is the pressure of the gas at 600K?
ch4aika [34]
B the atm hehsjskkakajahhajajajajjajajajsjsjjsjsjsnsnnsns
7 0
3 years ago
How is a hydrogen bond different from an ionic or covalent bond?
o-na [289]

Answer:

Hydrogen bonds are totally different to both covalent bonds and ionic bonds. Hydrogen bonds are intermolecular bonds, that means they occur in between two molecules. ... When H atom is close to O,F, N atoms those atoms can attract H atoms electrons temporarily, thus making a weak bond.

Explanation:

6 0
4 years ago
Read 2 more answers
A solution of fructose, C6H12O6, a sugar found in many fruits, is made by dissolving 34.0 g of fructose in 1.00 kg of water. Wha
Mashcka [7]

Answer:

Molality → 0.188 m

Mole fraction of fructose → 0.00337

Mass percent of fructose in solution → 3.29 %

Molarity → 0.183 M

Explanation:

Solute → 34 g of fructose

Solvent → 1000 g of water

Solution → 1000 g of water + 34 g of fructose = 1034 g of solution.

We take account density to calculate, the solution's density

1.0078 g/mL = 1034 g / mL

1034 g / 1.0078 g/mL = 1026 mL

Molal concentration → moles of solute in 1kg of solvent

Moles of fructose = mass of fructose / molar mass

34 g/ 180g/mol = 0.188 mol

0.188 mol/1kg = 0.188 m

Mole fraction of fructose = Moles of fructose / Total moles

We determine the moles of water

Moles of water = 1000 g / 18 g = 55.5 mol

Total moles = moles of fructose + moles of water

0.188 mol + 55.5 mol = 55.743 mol

0.188 mol / 55.743 mol = 0.00337

Mass percent = mass of fructose in 100 g of solution

(Mass of fructose / Total mass ) . 100 = (34 g /1034 g) . 100 = 3.29 %

Molarity = Moles of solute in 1L of solution

We can also say mmol of solute in 1 mL of solution

0.188 mol of fructose = 188 mmol of fructose

Molarity = 188 mmol / 1026 mL of solution = 0.183 M

8 0
3 years ago
1. What volume is shown in the graduated cylinder below?
hram777 [196]

The volume shown in the graduated cylinder according to the image would 28 mL. Thus, the correct option would be C.

In the cylinder, the top of the liquid formed a concave meniscus with the walls of the cylinder. Thus, the bottom of the meniscus would be read as this is the normal rule.

The rule is such that for liquids that form concave meniscus with the walls of cylinders, the bottom of the meniscus is read while it is the top of the meniscus for liquids that form convex meniscus with the walls of cylinders.

Hence, looking at the image, the bottom of the concave is on the 28 mL mark on the cylinder.

More on concave and convex meniscus can be found here: brainly.com/question/17022999

4 0
2 years ago
What is the net ionic<br> charge for an oxygen ion
jok3333 [9.3K]

Answer:

2-

Step-by-step explanation:

An O atom is neutral because it has the same  number of protons as electrons.

O is in Group 16, so it <em>adds two electrons</em> to get a complete octet.

Since it has two extra electrons, the charge on an oxygen ion is 2-.


8 0
3 years ago
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