CHEMISTRY HIGH SCHOOL

Which is denser, isopropyll alcohol( rubbing alchohol) or water?

Answers

Answer 1
Answer: Isopropyll is less dense than water.

If you were to get a gallon of water and a gallon of Isopropyll alcohol and weigh it, the alcohol would be lighted. Another way is to pour water and the alcohol in a cup and you will see that the alcohol is above the water(floating) because its lighter and less dense. Isopropyll alcohol is used for a lot of things, including cleaning certain components of computers:D

So based on this, water is more dense
Answer 2
Answer:

Answer:

water is denser

Explanation:

if you were to fill 2 55 gallon barrels of each product the water would weigh more because water is more dense

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What are the 4 types of bonds carbon can form and their structures

Answers

The most common bond carbon can form is a covalent bond. Carbon shares electrons with other atoms. This includes carbon-carbon bonds and carbon-hydrogen bonds. Another type of bond carbon can make is an ionic bond but this is a less common bond. For example is Calcium Carbide.

Physical or chemical change? what gave you the idea that it was such?​

Answers

Answer:

chemical change

Explanation:

signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.

Give me brainliest plz

Answer:

Chemical change

Explanation:

because it tranformed into something else

Which three phenomena occur during a double-slit experiment and support the wave model of light? A. The light passes through the slit
B. Bright areas appear on the screen
C. Light bends around the edges of the slit
D. Dark areas appear on the screen

Answers

The three phenomena occur during a double-slit experiment and support the wave model of light is bright areas appear on the screen, light bends around the edges of the slit, dark areas appear on the screen. Therefore, option B, C and D are correct.

What is double slit experiment ?

The double-slit experiment, which was conducted to study the characteristics of light in the eighteenth century, has subsequently been found to illustrate the duality of photons as well as the ideas of superposition and quantum interference.

It implies that things we refer to as "particles," like electrons, in some ways mix the traits of both particles and waves. That is quantum physics' renowned wave-particle duality.

The three phenomena occur during a double-slit experiment and support the wave model of light is bright areas appear on the screen, light bends around the edges of the slit, dark areas appear on the screen.

Thus, option B, C and D are correct.

To learn more about the double slit experiment, follow the link;

brainly.com/question/28188781

#SPJ2

Answer:BC And D

Explanation:just did the quiz

Reproductive cells are created by _____. mitosis meiosis cytokinesis

Answers

The correct answer is meiosis. Meiosis is a process where a cell divides into two where these cells contain half of the genetic information from the original cell. Meiosis produces daughter cells containing 50% information from the mother and 50% from the father.

The correct answer is meiosis.

Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64

Answers

Answer : 5.0 X 10^(-5)

Explanation : We need to simply calculate the division for finding the correct answer and which can be expressed in scientific notation.

(6.32 X 10^(-4) )/(12.64)

The answer on solving will be5.0 X 10^(-5).

Simple division method was used to find out the answer.
Im pretty surr this is an odyssey question? If so its 5.00•10^-5

The molar mass of KCl is 74.55 g/mol. If 8.45 g KCl are dissolved in 0.750 L of solution, what is the molarity of the solution?0.113 M
0.151 M
6.62 M
11.3 M

Answers

Answer:

                  Molarity  =  0.1516 mol.L⁻¹

Solution:

             Molarity is the amount of solute dissolved per unit volume of solution. It is expressed as,

                         Molarity  =  Moles / Volume of Solution    ----- (1)

Data Given;

                  Mass  =  8.45 g

                  Volume  =  0.750 L

Step 1: Calculate Moles for given mass as,

                   Moles  =  Mass / M.mass

                   Moles  =  8.45 g / 74.55 g.mol⁻¹

                   Moles  =  0.1133 mol

Step 2: Calculating Molarity:

Now, putting value of Moles and Volume in eq. 1,

                        Molarity  =  0.1133 mol ÷ 0.750 L

                        Molarity  =  0.1516 mol.L⁻¹

Molar concentration or molarity is defined as the ratio of moles of a solute dissolved in the given volume of the solvent.

How do you calculate the molarity using the formula?

Given:

  • Molar mass of Potassium Chloride = 74.55 g/mol
  • Given the mass of Potassium Chloride = 8.45 g
  • The volume of the solution = 0.750 L

Now, to calculate the number of moles, we get:

\rm Moles &=(Mass)/(Molar Mass)\n\n\nMoles &= (8.45)/(74.55)\n

Moles = 0.113 mol

Then, the molarity of the solution will be:

\rm Molarity &= (number \; of \; moles)/(Volume\;of \; Solution)\n\n\n\rm Molarity &= (0.113)/(0.151)

Molarity = 0.1516 mol/L

Thus, the molarity of the given solution is 0.1516 mol/L. The correct answer is Option B.

Learn more about molarity here:

brainly.com/question/12127540
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