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Scorpion4ik [409]

3 years ago

14

begging u to answer Which is not an inter molecular force? Select one: a. Inter atomic bonds b. van der waals forces c. hydrogen

bonds

1 answer:

Elenna [48]3 years ago

6 0

Answer:

a-Interatomic bonds

Explanation:

First of all, it is not a force. Let alone be molecular force.

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A solution of CaCl 2 in water forms a mixture that is 42.0 % calcium chloride by mass. If the total mass of the mixture is 839.6

Lerok [7]

Answer : The masses of calcium chloride and water used were, 352.6 g and 487.0 g.

Explanation :

As we are given that 42.0 % calcium chloride by mass that means 42.0 grams of calcium chloride present in 100 grams of solution.

In the solution or mixture, 42.0 % calcium chloride and 58.0 % (100-42.0=58.0) water.

Now we have to determine the mass of calcium chloride for 839.6 grams of solution.

As, 100 grams of solution contains 42.0 grams of calcium chloride

So, 839.6 grams of solution contains $\frac{42.0}{100}\times 839.6=352.6$ grams of calcium chloride

Thus, the mass of calcium chloride used is, 352.6 grams.

Now we have to determine the mass of water.

Mass of water = Mass of solution - Mass of calcium chloride

Mass of water = 839.6 g - 352.6 g

Mass of water = 487.0 g

Thus, the mass of water used is, 487.0 grams.

6 0

3 years ago

What is the work done in lifting 60 kg of blocks to a height of 20 m

balandron [24]

Answer:

<h2>1200 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 60 × 20

We have the final answer as

<h3>1200 J</h3>

Hope this helps you

8 0

2 years ago

33) 1 e = ........С <br>O 1.6*10^-27 <br>O * 1.6 *10^-19 <br>O 1.66 * 10^-19 <br>o 1.66* 10^-27

Brilliant_brown [7]

Answer

0.16574

Explanation:

because why not

8 0

2 years ago

The image is a model of sulfuric acid that has a chemical formula of H2SO4. In 1-2 sentences, explain why creating models, like

JulijaS [17]

A model aids in visualizing a molecule and understanding its properties.

In chemistry, models of molecules give us an idea about the arrangement of atoms in the molecules. Usually, the arrangement of atoms in a molecules determines the kind of reactions that the molecule can undergo.

Models are three dimensional representations of what molecules look like. They help us to conceptualize the possible orientation of atoms and groups in the molecule.

Looking at the model of H2SO4, it becomes easier to understand the chemical and physical properties of the compound owing to the arrangement of atoms.

Learn more: brainly.com/question/12000914

8 0

2 years ago

Resistance is the slowing of the flow of electrons and where some of the electrical energy is converted into heat. true or fals

zaharov [31]

Answer: True

Explanation:

I just took the test and got it right

3 0

2 years ago