How many moles of Co are needed to produce nine moles of CO2

Answer:

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Answer:

n=4

Explanation:

n= (154.75×28.40)÷(68.45×18)

n=3.5

n=4(approximately)

Answer: a plant cell

Explanation:

Answer:

-1151.5 J

Explanation:

Given that:

The supplies energy = 245 L

The energy used in the expansion of gas = Pressure ×ΔV (change in volume)

At standard conditions;

Pressure = 105 × 10³ Pa

energy used in the expansion = 105 × 10³ Pa × (38.6 - 25.3)L

= 1396.5 J

Thus, the change in the energy of gas = 245 - 1396.5 J

= -1151.5 J

Hence, we can conclude that the gas has lost its own energy in the process of expansion.

Explanation:

The reason why stars are so important is that they have helped humans navigate through Earth. When it was dark these stars would light up the sky giving people lightly. In addition, stars are very important because they make life on Earth. ... Earth would just be a rock with ice.

Answer:

I think 50 grams only because you have pour 50 grams of solute in to 800 grams of solvent.

Answer: Sea breezes

Explanation: Took the test

Answer:

Benthos: crabs, starfish, lobsters, stingrays,, algae

Plankton: diatom, tubeworms

Nekton: whales, sharks, turtles,

Explanation:

Answer:

A air

Explanation:

Air is a mixture but not compound. Its constituents can be separated. For example: oxygen, nitrogen etc. by physical process.

Answer:

T2 = 547.2K

Explanation:

Given:

V1 = 135 ml. V2 = 250 ml

T1 = 295.5K. T2 = ?

Using Charles's law and solving for T2,

V1/T1 = V2/T2

T2 = (V2/V1)T1

= (250 ml/135 ml)(295.5K)

= 547.2K (or 273.2°C)

Answer:

Explanation:

Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants.

Carnivores only eat other animals, and omnivores eat both plant and animal matter.

Answer:

I searched it up and screenshot it

Explanation:

I searched it up : )

Answer:

depends on how much jelly u like

Answer:please see explanation for answers

Explanation:

Water conservation is an approach geared towards controlling how water is used. Because of the ever growing population, which weighs so much on water available to mankind,Over negligence and abuse of our water resources have been a great point of concern, that is why the need for the knowledge of water conservation is preached.

Now, some of the ways we can conserve water include

1. Putting off taps while lathering the hands with soap

2.use of irrigation system to water crops and plants

3.. while brushing, make sure to turn off the tap or faucet

4. use a shower rather than a bath

Answer:

pressure=force / volume

5.8÷3.9

=1.5 ml

Answer:

So originally, the plum pudding model by J.J Thomson is electrons (negatively charged) held in place by a proton (positively charged) cloud.

Alpha particles are positively charged made of 2 protons + 2 neutrons.

Rutherford's experiment where they beamed those positively charged alpha particles demonstrated that an atom was not a uniform cloud, instead the alpha particles that were deflected was the positively charged nucleus. The alpha particles would also pass through if it didn't hit the nucleus, or be slightly attracted to the negative charge on the electrons. But the overall idea is that Rutherford's experiment changed what the structure of the atom was by discovering that they have a positively charged nucleus due to the deflection of positively charged alpha particles.

Answer:

Condensation is the process of water vapor condensing into liquid water.

Explanation:

"Water condenses on a can of cold soda. Water vapor in the air reaches its dew point as it cools in the air around the can, forming liquid drops of water. Condensation is the process where water vapor becomes liquid. It is the reverse of evaporation, where liquid water becomes a vapor." -National Geographic"

Answer:

Ea = 210.5kJ/mole

Explanation:

When the reaction:

O3 + NO → O2 + NO2

Occurs, requires 10.7kJ/mole and releases -199.8kJ/mole.

For the forward reaction:

O2 + NO2 → O3 + NO

The Ea is the sum of Ea of the forward reaction and - ΔH, that is:

Ea = Ea - (-ΔH)

Ea = 10.7kJ/mol - (-199.8kJ/mol)

Ea = 210.5kJ/mole

Answer:

Explanation:

Each particle, or corpuscle, of water is a regular icosahedron (20-sided geometrical solid). This is what water particles look like, according to Plato's description in the Timaeus. In the center is the water-particle Plato describes at 55b, with 6 scalene triangles making up each equilateral face of the icosahedron

Answer:

wdym??

Explanation:

Answer:

wdym by water, soil, temperature, space?

Answer:

0.502mol

Explanation:

The balanced chemical equation of the reaction described in this question is as follows:

2KClO3 → 2KCl+ 3O2

According to the equation above, 2 moles of KClO3 will produce 2 moles of KCl.

Using mole = mass/molar mass to convert mass of KClO3 to moles

Molar mass of KClO3 = 39 + 35.5 + 16(3)

= 39 + 35.5 + 48

= 122.5g/mol

mole = 61.5 g ÷ 122.5g/mol

mole = 0.502mol

Since 2 moles of KClO3 will decompose to produce 2 moles of KCl.

0.502 mol of KClO3 will decompose to produce 0.502 × 2/2

= 0.502mol of KCl.

Answer:

Explanation: It is an ionic compound  Fe2(C2O4)3

The compound  with the formula Fe₂(C₂O₄)₃ contains two iron atoms, 6 carbon atoms and 12 oxygen atoms. Thus option C is correct.

Chemical formula of a compound or molecule represent the identity of the compound by representing which atoms are present in how many numbers.

Chemical formula is significant in representing a compound and distinguish it from other compounds.The number of each atom are given as subscripts for the symbol of each atoms.

If any group of atoms such SO₄ group or CO₃ group repeats in the compound put them in brackets and their number is given outside.The compound Fe₂(C₂O₄)₃ contains 2 iron atoms because Fe is the symbol of iron.

C₂O₄ is oxalate group and it is 3 in number. Two carbon and 4 oxygens are there in one oxalate group. Thus there are total 6 carbons and 12 oxygens in 3 oxalate groups. Hence option C is correct.

To find more about chemical formula, refer the link below:

https://brainly.com/question/29031056

#SPJ2

Answer:

72g

Explanation:

The balanced equation of the reaction between Magnesium (Mg) and hydrochloric acid (HCl):

Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)

Based on this equation, 1 mole of Mg needs to react with 2 moles of HCl.

Hence, 6 moles of HCl will need to react with 6 × ½ = 3 moles of Mg.

Using the formula; mole = mass/molar mass

Molar mass of Mg = 24g/mol

3 = mass/24

mass = 72g.

Answer:

C) drain cleaner fizzes up as it encounters blockages in a pipe

Explanation:

Answer:

See Explanation

Explanation:

A biosphere is a zone of life found on earth. Since the artificial biosphere has all the elements that support and sustain human life, then there must also be soil in the artificial biosphere.

If that is the case, then we can engage in massive tree planting. Trees take in carbon dioxide and release oxygen. Hence if a large number of trees are planted all over the artificial biosphere, the trees will eventually produce large enough oxygen to support human life overtime.

Explanation:

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Answer:

According to Boyle's Law, an inverse relationship exists between pressure and volume. ... The relationship for Boyle's Law can be expressed as follows: P1V1 = P2V2, where P1 and V1 are the initial pressure and volume values, and P2 and V2 are the values of the pressure and volume of the gas after change.  

Hope that helps! :)

-Aphrodite

Explanation: