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3 years ago

1 point

Chemistry

1 answer:

Allushta [10]3 years ago

5 0

Answer:

Explanation:

The final pressure can be found by using the formula for Boyle's law which is

$P_1V_1 = P_2V_2$

Since we are finding the new pressure

$P_2 = \frac{P_1V_1}{V_2} \\$

From the question we have

$P_2 = \frac{10 \times 2}{20} = \frac{20}{20} \\$

We have the final answer as

Hope this helps you

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What is the atom inventory for the following equation after it is properly balanced? ____NaOH + ____CuCl2 Imported Asset ____NaC

faltersainse [42]

Answer:

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2;

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

Explanation:

NaOH + CuCL2 —> NaCl + Cu(OH)2

The balanced equation can be achieved by doing the following:

There are 2 oxygen and 2 hydrogen atom on the right side. This is balanced by putting 2 in front of NaOH as shown below:

2NaOH + CuCL2 —> NaCl + Cu(OH)2

This makes Na to be unbalanced. Now to balance Na, put 2 in front of NaCl as illustrated below

2NaOH + CuCL2 —> 2NaCl + Cu(OH)2

Now the equation is balanced.

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

4 0

3 years ago

Please help me with this

Zina [86]

Answer:

Explanation:

it breaks down a simple sugar into a type of energy their cells can use

6 0

3 years ago

Read 2 more answers

HELP ASAP!!! 2C4H10(g) + 1302 ===> 8CO2(g) + 10H2O(g)

Ivan

Answer:

30.34g (corrected to 4 significant figures).

Explanation:

Take the atomic mass of C=12.0, H=1.0, O=16.0.

no. of moles = mass / molar mass

So, no. of moles of butane reacted = 10 / (12x4 + 1x10)

= 0.172414 mol

Since O2 is in excess and butane is the limiting reagent, the no. of moles of carbon dioxide produced depends on the no. of moles of butane reacted.

From the equation, the mole ratio of butane:Carbon dioxide = 2: 8 = 1: 4,

meaning 1 mole of butane gives 4 moles of CO2.

Using this ratio,

we can deduce that the no. of moles of CO2 produced = 0.172414 x 4

=0.689655 mol

As mass = no. of moles x molar mass

mass of CO2 produced = 0.689655 x (12.0+16.0x2)

=30.34g (corrected to 4 significant figures).

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3 years ago

Competition is one of the causes of evolution we have discussed before, but it is an example of what type of factor?

Burka [1]

Answer:

Biotic factor

Explanation:

Competition only exist due to limited resources (abiotic factors AKA environment) which occurs in biotic factors (living organisms).

Fear factor is nonsense because fear does not exist in plants but they still compete for sunlight and water.

Factory factor is nonsense as well because this term does not exist in biology.

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3 years ago

HELP WITH SCIENCE!! 7TH GRADE! DUE TODAY!

ehidna [41]

I am not positive this is what you want but here lol:

The Earth's surface is about 71 percent water spreading over many oceans, rivers, and lakes. This also includes the droplets of water on the morning grass, the undrained water from the rain, puddles that never evaporated, etc. As this water is heated up by the Sun, its' molecules start to move faster as it turns into gas and evaporates. As it evaporates it rises, however, the cooler temperatures in the high altitude of Earth's atmosphere make it condense into large clouds. When so much water has evaporated and the cloud very dense, gravity brings down the water from the clouds onto the ground in the form of rain. This completes the water cycle as the water will either turn into runoff, stay on the surface of the Earth, or seep into the ground. Then the water evaporates again, and the whole process starts over.

*Hope this helped!! Have a good night/ day wherever you are! : )*

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3 years ago