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3 years ago

Many organisms have adaptations which allow them to live in certain environments.

Chemistry

1 answer:

zloy xaker [14]3 years ago

5 0

Answer:

Webbed Feet

Explanation:

<em><u>Webbed Feet Benefits:</u></em>

Most animals with webbed feet are aquatic animals who live in, on, or near the water. Webbed feet help them <em>move quickly</em> through the water when they're chasing food or trying to escape from predators.

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Which pictures shows the proper structure of the water molecule? Click the picture to see each choice.

Yuliya22 [10]

The third picture is the answer

Explanation:

there are 2 hydrogen atom 1 oxygen

7 0

1 year ago

A gas bottle contains 8. 61×1023 oxygen molecules at a temperature of 359. 0 k. what is the thermal energy of the gas? (you migh

Cloud [144]

A gas bottle contains 8. 61×1023 oxygen molecules at a temperature of 359. 0 k then the thermal energy of the gas is 6.35KJ.

<h3>What is thermal energy? </h3>

Thermal energy is the energy contained within a system which is responsible for its temperature. Heat is also termed as flow of thermal energy.

Thermal energy is directly proportional to the temperature. As temperature increase thermal energy increases.

Given,

temperature = 395K

Number of oxygen molecules= 8.61 × 10^(23)

Firstly we will calculate the number of moles = N/A

where A is the avagadro number = 6.022 × 10^(23)

number of moles = 8.61 × 10^(23)/6.022 ×10^(23)

number of moles = 1.42moles

Using the energy equation,

E = 3/2 × nRT

where R is the gas constant = 8.314J/molK

E = 3/2 × 1.42 × 8.314 × 359

= 6357.4J

= 6.35KJ

Thus, we found that the thermal energy of the gas is 6.35KJ.

learn more about thermal energy:

brainly.com/question/2409175

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5 0

1 year ago

Water evaporating from a puddle is an example of a

Flauer [41]

It is an example of physical change. The molecules are not changing, so it is not chemical, and a physical property is something that a physical thing has.

5 0

3 years ago

Read 2 more answers

Given 40 grams of magnesium. How many mole is this

Dahasolnce [82]

To determine the moles in 40 grams of magnesium, we need the atomic weight. This can easily be found on a periodic table. For this problem, let's use 24.305 grams/mole.

We are going to set up an equation to determine this problem. In this equation, we want all our units to cancel out except for 'moles.'

$\frac{40 g Mg}{1} x\frac{1 mole Mg}{24.305 g Mg}$

In this, we can see that the unit 'grams' will cancel out to leave us with moles.

In solving the equation, we determine that there are approximately 1.65 moles of Magnesium.

3 0

3 years ago

What is the name of the process shown in the above picture?

Wewaii [24]

Answer:

C is the answer to the question

8 0

2 years ago

Read 2 more answers