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3 years ago

Oil coats the surface of the water, endangering sea life during an oil spill. Why doesn’t oil dissolve in ocean water?

1 answer:

6 0

The best and most correct answer among the choices provided by your question is the fourth choice or letter D "Oil is nonpolar, and water is polar."

Oil will not dissolve in water because water forms a polar covalent bond and oil forms a non-covalent bond. According to the U.S. Department of Energy, in chemistry molecules dissolve with other molecules that share similar characteristics.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

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Which chemical element has the shortest name?

larisa86 [58]

Tin would be the right answer

5 0

3 years ago

Read 2 more answers

CALCULATOR

suter [353]

Answer: The possible molecular formula will be $CO_2$

Explanation:

Mass of C= 27.3 g

Mass of O = 72.7 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{27.3g}{12g/mole}=2.275moles$

Moles of O = $\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{72.7g}{16g/mole}=4.544moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{2.275}{2.275}=1$

For O = $\frac{4.544}{2.275}=2$

The ratio of C : O = 1: 2

Hence the empirical formula is $CO_2$

The possible molecular formula will be= $n\times CO_2$

5 0

3 years ago

Things an animal does to survive are called...

Elina [12.6K]

Things an animal does to survive are called behavioral adaptations. The correct option is c.

<h3>What is behavioral adaptation?</h3>

The adaptation of behavioral and physical characters that help to survive them.

For example, hibernating during winter, migration, etc. There are two types of behavioral adaptation, learned and instinctive.

Thus, the correct options are c: behavioral adaptations.

Learn more about behavioral adaptation

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3 0

2 years ago

A ping pong ball with a mass of 2.20 grams rolls along a frictionless table with a velocity of 0.850 m/s. what is the momentum o

Nataly_w [17]

1.87 should be your answer

6 0

3 years ago

Read 2 more answers

grin007 [14]

Answer:

Calcium

Explanation:

The symbol for the element with a mass number of 27 is actually Al for Aluminum instead of Co for Cobalt. Mass number refers to atomic mass, not atomic number.

Aluminum has an atomic mass of 26.982 or 27.

The letters to unscramble are I, M, C, Al, U, and C.

The mystery element is Calcium.

Hope that helps.

3 0

2 years ago