If we know the specific heat of a material, can we determine how much heat is released under a given set of circumstances?

Answer:

0.683 moles of the gas are required

Explanation:

Avogadro's law relates the moles of a gas with its volume. The volume of a gas is directely proportional to its moles when temperature and pressure of the gas remains constant. The law is:

V₁n₂ = V₂n₁

Where V is volume and n are moles of 1, initial state and 2, final state of the gas.

Computing the values of the problem:

1.50Ln₂ = 5L*0.205mol

n₂ = 0.683 moles of the gas are required

The Density of a substance is simply defined as the mass of the subtance per unit volume of the substance i.e

Density = mass /volume

To solve the question given above, we'll begin by calculating the volume of the zinc. This can be obtained as follow:

Density of Zinc = 7.10 g/cm³

Mass of Zinc = 46.77 g

Density = mass /volume

7.10 = 46.77 / Volume

Cross multiply

7.10 × Volume = 46.77

Divide both side by 7.10

Volume = 46.77 / 7.10

Finally, we shall determine the new volume of the water. This can be obtained as follow:

Volume of Zinc = 6.59 cm³ = 6.59 mL

Volume of water = 33.33 mL  

New volume of water = (Volume of Zinc) + (Volume of water)

New volume of water = 6.59 + 33.33

Therefore, the new volume of water is 39.92 mL

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Answer:

Melting ice speeds up climate change.

Explanation:

The Arctic helps to regulate the world's temperature, so as more Arctic ice melts the warmer our world becomes.

Answer:

newton's 3 laws state:

- an object in motion stays in motion (unless an external force acts on it)

- every action has an opposite but equal reaction

- force= mass x acceleration

Answer:

.....

Explanation:....

Answer:

la re spuesta en verdadero

Answer:

True

Explanation:

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Answer:

Heating a substance can cause the substance to change state

The way particles move changes when the substance's thermal energy changes.

Particles in all states of matter are constantly

moving.

Those are all correct and apply to water in all three phases

Answer:

Chemical reaction are irreversible. Some of the example of chemical reaction are cooking, rusting, and burning. During a chemical reaction, the composition of substances changes and the particles rearrange to form a new substance. The new substance formed after chemical reaction of substance has different  physical and chemical properties.

When a chemical reaction occur, the atoms or molecules of the substances change its physical and chemical properties such as while cooking of vegetable, the molecules of vegetable undergo changes in their properties and form a new substance which is different from the earlier.

Answer:

The system can operate on a set level of parts per million (ppm) chlorine, where the set level is automatically maintained.

Answer:

61,000

Explanation:

Answer:

CaCO3 + 2 HCl => CaCl2 + CO2 + H2O

Explanation:

CO2 will burst out when the reaction occurs in water, and the ions will be dissociated: Ca(2+) + 2 Cl (-)

Answer:

white phosphorus is P4 in a tetrahedral shape and there are some really cool videos of it reacting in air and some not very cool ones where it was used militarily it is not stable, it needs to be stored underwater

red phosphorus is a larger more complicated network solid with many more phosphorus and is very stable

they are allotropes of phosphorus

Explanation:

approximately 3 liter

because when we round of 2.67it will be 3

Answer:

Galaxy ?

Explanation:

Answer:

Ok...

Answer: YTH/JYG

Explanation:

AI+ZN+H=YTH

Answer:Potassium and sulfur form KS2

Sodium and calcium form Na2Ca

Beryllium and nitrogen form Be3N2

Explanation:

i took the quiz

Explanation:

Isostatic rebound (also called continental rebound, post-glacial rebound or isostatic adjustment) is the rise of land masses that were depressed by the huge weight of ice sheets..

Answer:

Fossils: 3.5 billion.  Rocks: 4.28 billion

they were found during Haden Eon

Explanation:

Answer:

A

Explanation:

solute- thing being disolved

solvent- thing doing the disolving

so water is a solvent and salt is solute.

which is A

if my answer helps please mark as brainliest.

In the solution of salt and water, Water is the solvent; Salt is the solute. That is option A.

A solute is defined as the part of a solution that is being dissolved by the solvent. A typical example of solute is base and salts.

A solvent is defined as the dissolving part of a solution which is usually liquid in form. A typical example is water.

Therefore, the solute and solvent of a solution would be salt and water respectively. That is option A.

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the awnser is : b serious

Answer:

11

Explanation:

Answer:

Atomic number of sodium is 11.

Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na. The free metal does not occur in nature, and must be prepared from compounds.

Answer:

option 2nd is correct answer of this question

Some farmers of vegetables and fruits from flowering plants pay beekeepers to bring their beehives to their land each year because flowering plants depend on bees for self-pollination. Therefore, option 2 is correct.

Self pollination is the transfer of pollen grains from the anther of a flower to the stigma of the same flower in the same plant or to a different plant that is genetically similar.

Many crops, but not all, self-pollinate. Beans, broccoli, cabbage, carrots, cauliflower, corn, kohlrabi, onions, and peppers are examples. Apples, cherries, peaches, and pears are among the fruit trees that self-pollinate.

Because flowering plants rely on bees for self-pollination, some farmers of vegetables and fruits from flowering plants pay beekeepers to bring their beehives to their land each year.

Thus, option 2 is correct.

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Answer:

The volume will be 0.47 L

The answer is the volume of the balloon when it is fully cooled by the refrigerator is 0.47 L

If the pressure remains constant , Volume is directly proportional to temperature

[tex]\dfrac{V^{1} }{T^{1} } = \dfrac{V }{T }[/tex]

The data given in the question ,

When Solving Gas Law Problems , we need to convert degree Celsius to Kelvin.  

kelvin = degree Celsius + 273.15  

T2 (final temperature) in Kelvin = 4 + 273.15 = 277.15K

T1 (initial temperature) in Kelvin = 22 + 273.15 = 295.15 K

V1 (initital volume) = 0.5 L  

V2 (final volume) = unknown ?  

[tex]\dfrac{V^{1} }{277.15 } = \dfrac{0.5 }{295.15}\\\\V^{1} \;\;\; \;\;\;= \dfrac{0.5\times 277.15}{295.1 5} \\\\V^{1} \;\;\; \;\;\;= \;0.47\; litres[/tex]

Thus , the volume of the balloon when it is fully cooled by the refrigerator is 0.47 litres.

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Answer:

In the image below

Explanation:

Hope this helps you :)

Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

Answer:

Fire is something that's red and sorta orange is hot and can burn you but fire can be good and bad at some points for example fire can be used as a campfire,fireplace at home,and lighting candles. Fire is also very dangerous tho ,you can burn yourself if your not careful it can light your house on fire and that wouldn't be very safe. In simple words i would say fire is something that can have advantages and disadvantages.

Ahhh hope thats alright im on online classes but i wanted to help!!

Answer:

This would depend on the intensity or the size of a fire.

Explanation:

For instance, a small fire could be described as: kindled, flickering, dancing (in the case of a candle flame), smoldering, or crackling.

A medium size fire, such as a camp fire or a fireplace could be described as: crackling, blazing, burning, or roaring.

While a large or very intense fire (such as a forest fire or a house fire) could be described as: roaring, blazing, burning out of control, consuming, raging, or destroying.

If you were more looking for synonyms of ‘fire’, here are a few of my favorites: flame, blaze, incinerate, immolation, and inferno. (Edited to add a few I remembered: pyre, conflagration, and scorching.)