According to Boyles law, what will happen to the gas in the system below if the pressure is decreased at constant temperature?

Answer:

its classified as a molecule

Answer:

Option 1

Explanation:

Here the formation of water is shown

\(\\ \tt\bull\rightarrowtail H_2+O_2\longrightarrow H_2O\)

Hydrogen and oxygen combine together to form water.

Answer:

it is C. take it to the local automotive parts store to be recycled

Explanation:

hope this helped have a nice day!

Answer:

They are sour. =)

Explanation:

The concentration of the solution is 0.05 M

the molecular mass of HNO3 = 1 + 14+ 16 X 3 = 63g

we know the formula mass = number of moles X molecular mass the compound

the concentration of solution nothing but moles of compound in solution thus moles of solution = 3.15/63 = 0.05 M

A chemical species' concentration in a solution, specifically the amount of a solute per unit volume of solution, is measured by its molar concentration. The most prevalent molarity unit in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units.

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Answer:

Barium, strontium and beryllium, all belong to the group 2. Silicon belong to group 14. Aluminium belong to group 13 and Osmium belong to group 8. Hence, the elements which have similar behavior are Barium, strontium and beryllium.

Explanation:

hope this helps

As 100 ml of 0.16 m naf and 100 ml of 0.16 m hf are combined, the resulting solution's pH rises when compared to the 0.10 m hf solution.

a metric for determining how basic or acidic a thing or solution is. The pH scale ranges from 0 to 14. A pH value of 7 is considered neutral on this scale, meaning it is neither acid nor basic. It's more acidic if the pH value is below 7, and more basic if the pH value is above 7.

The pH scale goes from 0 (very acidic) to 14 (neutral) (strongly basic or alkaline). The neutral range on this scale has a pH of 7.0. Blood typically has a pH range of 7.35 to 7.45, making it mildly basic.

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Answer:5) super Volcano eruption

Explanation:

Answer:

#1, #2, #4, and #6 are the answers.

Explanation:

#2, #4, and #6 have something to do with radioactivity which is mostly categorized in nuclear reactions, #3 and #5 are partly categorized in thermal reactions while a chemical plant explosion is almost categorized as a chemical bomb; Chemical explosions may be either decomposition or combination reactions. Decomposition reactions occur in materials such as trinitrotoluene (TNT) and nitroglycerine. Combination reactions require that two or more components react together exothermically to produce hot gases. Some examples are ammonium nitrate and fuel oil (ANFO), and gunpowder (potassium nitrate, carbon, and sulfur). In conclusion, #1, #2, #4 and #6 are the answers.

Answer:

2NaI + Cl2 -> I2 + 2NaCl

Balanced.

Option B: voluntary muscles are the muscles which have complete control and are responsible for all kinds of movements.

Animals' muscles are the types of tissue that cause movement or motion. Voluntary refers to action taken of one's own free will or will. All of the muscles that are linked to the skeleton are voluntary muscles, hence these muscles are also referred to as skeletal muscles or striated muscles because of the way their muscle fibres give them a striated, or stripy, appearance. This, therefore, tells us that option B is he right choice.

The only muscles that can be actively manipulated are those in the skeleton. Since the muscles are connected to the bones, pulling on them moves the bones. Skeletal muscles are used for every conscious movement a person makes.

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At 20°c, a 0.376 m aqueous solution of ammonium chloride has a density of 1.0045 g/ml. The mass percent of the ammonium chloride in the solution is 2.003%.

The number of moles of a substance can be estimated as:

\(\mathbf{number\ of\ moles = \dfrac{mass}{molar \ mass}}\)

Given that:

Mass = number of moles × molar mass

Mass = 0.376 × 53.50

Mass = 20.116 grams

In one mL of ammonium chloride; the grams of ammonium chloride is:

\(\mathbf{= \dfrac{20.116 \ grams}{1000 \ mL}}\)

= 0.020116 g/mL

The mass of ammonium chloride in the solution can be computed as:

\(\mathbf{=(\dfrac{mass \ of \ NH_4Cl}{density \ of \ the \ solution})\times 100}\)

\(\mathbf{=(\dfrac{0.020116 }{1.0045})\times 100}\)

= 2.003%

Therefore, we can conclude that the mass percent of the ammonium chloride in the solution is 2.003%.

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According to the graph, the concentration of A decreases with time before leveling out. Option A.

The reaction shown is that of a reversible reaction in which A is on the reactant's side and A2 is on the product's side.

At the beginning of the reaction, the concentration of A decreases as a result of forming A2. In other words, the concentration of A2 increases just as that of A decreases.

With time, the reaction reaches an equilibrium during which the rate of formation of A equals the rate of formation of A2. At this point, the concentration of A levels off.

In summary, the concentration of A first decreases before leveling off.

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Answer: Here u go

Explanation:

Atomic radii varies in a predictable way across the periodic table. The atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Answer:

C-C

A carbon has 4 valence electrons meaning it can share 4 electrons and is in short of 4 electrons to fill it outer energy shell making it 8. Which results to 2 double covalent bonds ,meaning there was a sharing of 2(4) = 8 electrons . Hope this helps . Your statement above is true .

Answer:

the shade/light is the independent variable

Explanation:

Answer:

the independent variable is the light and or shade.

Explanation:

because the light and the shade are going to both effect the growth.

and ive done this before haha well hope this helped

The volume of a bar of soap that has a density of 2.5 g/cm3 and a mass of 100 g is 40 cm ³. Therefore, option D is correct.

The mass of a substance per unit of volume is its density. A mechanically accepted measure is density. Density is most frequently represented by the symbol, however the Latin letter D may also be used.

The mass of a solid substance's unit volume. d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density.

Density = m / V

volume = mass / density

= 100 / 2.5

= 40 cm³

Thus, option D is correct.

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164 g is the molar mass of the gas that had passed through.

Effusion is defined as the pace at which a volume changes over time. We apply Graham's Law to determine the rate of gas diffusion. According to this law, the rate of a gas's effusion or diffusion is inversely related to the gas's molar mass squared.

\(\frac{Rate Gas 1}{Rate Gas 2}\)=\(\frac{ \sqrt{MW gas 2} }{ \sqrt{MW gas 1} }\)

Let gas 1 be Oxygen so  Molar mass = 32 g / mol

Let x be gas 2.  Molar mass = unknown

rate gas 1 = 7.41 ml/unit time

rate gas 2 = 3.47 ml / unit time

So, 7.41 / 3.47 = \(\frac{\sqrt{x} }{\sqrt{36} }\)

2.135 = s\(\frac{\sqrt{x} }{\sqrt{36} }\)

 \(\sqrt{x}\) = 12.81

so, x = 164 = molar mass of unknown gas

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Answer:

No, it is not.

Explanation:

Oil is a non-renewable source of energy. ... Burning oil can pollute the air. Much of our oil has to be imported and it is becoming more and more expensive as reserves reduce and imports increase. Producing electricity from crude oil is expensive compared to other fossil fuels such as coal or gas.

*You Can put this in your own words

To calculate the energy required to heat a substance, we can use the formula:

Q = mcΔT

where Q is the heat energy, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

Given that we have 712.0 g of graphite, a specific heat capacity of 0.710 J/g-K, and a temperature change of 18.7 °C (20.7 °C - 2.0 °C)

Q = (712.0 g) x (0.710 J/g-K) x (18.7 °C)

Q = 10,965.64 J.

The energy required to heat 712.0 g of graphite from 2.0 °C to 20.7 °C is 10.965 kJ.

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Answer: gasses

Explanation: Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.

Explanation:

B. Recycles slowly

And it also depends on the organism

The molecular mass of the unknown compound found in the aqueous solution was 223.2g/mol

The sum of the atomic masses of all atoms in a molecule is called as molecular weight

So to get molar mass of the compound from the given weight the concentration of compound is elucidated and thereby leading to the calculation of molar mass

Then the concentration of solute in an aqueous solution can be derived from the osmotic pressure equation

So the osmotic pressure = van't hoff factor then the molarity of solute(M) gas constant(R) temprature(T)

From the given values in the question and applying constant values

8.44 torr = 1(for non electrolytes)× M×62.3637L⁻¹torr⁻¹mol⁻¹×298K

M = 4.54×10⁻⁴M

From the molarity of the given compound the molare mass can be calculated as

Molarity = weight/ molecular weight × 1000/volume(ml)

4.54×10⁻⁴M = 0..0152g/molecular weight × 1000/150ml)

Molecular weight = 223.2g/mol

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The net force on particle 3 due to the presence of particle 1 and particle 2 on the same straight line is 50.5 N to the right.

The force between the two particles is determined from Coulomb's law as shown below;

F = kq₁q₂/r²

F(1,2) = -(9 x 10⁹ x 28.1 x 10⁻⁶ x 25.5 x 10⁻⁶) / (0.3)²

F(1,2) = - 71.66 N

F(2,3) = + (9 x 10⁹ x 25.5 x 10⁻⁶ x 47.9 x 10⁻⁶) / (0.3)²

F(2,3) = + 122.15 N

The net force on particle 3 is determined as follows;

F(net) = 122.15 N - 71.66 N

F(net) = + 50.5 N

Thus, the net force on particle 3 due to the presence of particle 1 and particle 2 on the same straight line is 50.5 N to the right.

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Taking into account definition of limiting reagent, H₂O will be the limiting reagent, 0.275 moles of H₂S can be produced if 0.99 mol of aluminum sulfide and 0.55 mol of water react and 0.898 moles of the excess reagent remains after the reaction is complete.

In first place, the balanced reaction is:

Al₂S₃ + 6 H₂O → 2 Al(OH)₃ + 3 H₂S

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The limiting reagent will be the one that is used up first in the reaction while the excess reagent will be the one that is not completely used up during the reaction.

The amount of product obtained from the reaction will always depend on the amount of limiting reagent in the reaction.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 1 mole of Al₂S₃ reacts with 6 moles of H₂O, 0.99 mole of Al₂S₃ reacts with how many moles of H₂O?

moles of H₂O= (0.99 mole of Al₂S₃× 6 moles of H₂O)÷ 1 mole of Al₂S₃

moles of H₂O= 5.94 moles

But 5.94 moles of H₂O are not available, 0.55 moles are available. Since you have less moles than you need to react with 0.99 mole of Al₂S₃, H₂O will be the limiting reagent.

To calculate the amount of excess reagent that remains after the reaction is complete, you can use a simple rule of three as follows: if by stoichiometry 6 moles of H₂O reacts with 1 mole of Al₂S₃, 0.55 moles of H₂O reacts with how many moles of Al₂S₃?

moles of Al₂S₃= (1 mole of Al₂S₃× 0.55 moles of H₂O)÷ 6 moles of H₂O

moles of Al₂S₃= 0.092 moles

If 0.99 moles of Al₂S₃ are avilable, the excess moles can be calculated as:

excess moles of Al₂S₃= 0.99 moles - 0.092 moles

excess moles of Al₂S₃= 0.898 moles

0.898 moles of the excess reagent remains after the reaction is complete.

Considering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 6 moles of H₂O form 3 moles of H₂S, 0.55 moles of H₂O form how many moles of H₂S?

moles of H₂S= (0.55 moles of H₂O×3 moles of H₂S)÷6 moles of H₂O

moles of H₂S= 0.275 moles

Finally, 0.275 moles of H₂S can be produced.

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Answer:

The number of

atoms in the unit cell is 2

Explanation: