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3 years ago

Which sample of co2 has a definite shape and definite volume

1 answer:

4 0

The answer is Solid.

This is on account of the substances that develop a solid are packed in a settled, firmly pressed geometric plan.

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Molecules of carbon dioxide are linear. What type of force exists between these molecules?

Vadim26 [7]

London Dispersion forces

Explanation:

London dispersion forces exists between the molecules of CO₂. These are weak attractions found between non-polar (and polar) molecules(symmetrical molecules).

This attraction sometimes makes non-polar molecules polar.
This is because of the uneven charge distribution caused by the constant motion of its electrons.
A temporary dipole or instantaneous dipole induces the neighboring molecules to become distorted and forms dipoles as well.
The forces are the weakest of all electrical forces.

Learn more:

Intermolecular forces brainly.com/question/10107765

#learnwithBrainly

7 0

3 years ago

How many moles of lithium chloride will be formed by the reaction of chloride with 4.28 mol of lithium bromide in the following

lys-0071 [83]

Answer:

The answer is 4.28 moles

Explanation:

This is super easy okay, you won't forget this!

Basically mole ratios, we're just looking at the coefficients in front of the compounds, multiplying them, and dividing them as we see fit.

In this example, you can see how you need 2 moles of lithium bromide (LiBr) for the reaction, and 2 moles of lithium chloride (LiCl) will be produced.

Basically, the molar ratio is when you divide numbers and see how much of this do I have for that (if that makes sense).

So if you were to divide the 2 moles of LiBr / 2 moles of LiCl = 1. So we know that the mole ratio for LiBr to LiCl is 1:1 or 2:2, either or, it's the same thing.

SO THE BIG IDEA, if we have 4.28 moles of lithium bromide reacting, we should also have 4.28 moles of lithium chloride produced, BECAUSE the mole ratio is 1:1.

I hope this makes sense please tell me if it doesn't, I will try my best to explain a little more.

7 0

3 years ago

Three sections of the periodic table are labeled A, B, and C in the image. Which of the following statements is MOST LIKELY true

Marizza181 [45]

I think the answer is A

8 0

3 years ago

Read 2 more answers

A flower has 26 chromosomes. To create a new flower how many chromosomes would a sperm cell have, what is this process called 2

enot [183]

Answer:

13 chromosomes, meiosis

Explanation:

the sperm cell contributes half of the chromosome in an offspring while the egg cells contributes the other half. Hence, the sperm cell has half of 26, 13. This process is called meiosis. Meiosis is when one cell undergoes cell division twice, thus creating 4 new cells. Each of these 4 new cells have half the amount of chromosomes as the original cell.

3 0

3 years ago

An unknown mass of aluminum requires 6290 joules to raise

Alex Ar [27]

Answer:

124.579 g

Explanation:

Amount of heat required to change the temperature of body is given by the equation given below

Q = m* c * ΔT ____________________equation A

where Q is the total heat energy required by the any object

c is the specific heat capacity of the body J/gK

ΔT is the difference of final temperature of the object and initial temperature of the object

______________________________________

Given Q = 6290 joules

c = 0.900 J/gK

To calculate the temperature in kelvin from Celsius

we can use the formula

K = C + 273

initial temperature = 23.9°C

initial temperature on kelvin scale = 23.9° + 273 = 296.9

Final temperature = 80°C

initial temperature on kelvin scale = 80° + 273 = 353

ΔT(temperature difference) = 353 - 296.9 = 56.1

___________________________________________

let the mass of of the aluminum be m g

substituting the value of Q , c, ΔT in equation A we have

Q = m* c * ΔT

=> 6290 = m * 0.900 * 56.1

=> m = 6290/(0.900 * 56.1 )

=> m = 6290/50.49

=> m = 124.579 g

The mass of the aluminum is 124.579 g

8 0

3 years ago