a gas has a pressure of 1.26 atm and accupies a volume of 7.40 l. if the gas is compressed to a volume of 2.93 l, what will its pressure be, asumming constant temprature?

Answer:

name is Solanum tuberosum.

Explanation:

HOPE IT HELPS YOU

Answer:

I am very sure its Solanum

Answer:

toda

Explanation:

:todo lo que tienes que hacer es hacer la cosa

Answer:

16.6km/h

Explanation:

Speed is distance/time.

speed for 1st event = 1/0.4 = 2.5km/h

speed for 2nd event = 50/1.5 = 33.3 km/h

speed for 3rd event = 10/0.7 = 14.28 km/h

Average speed = 2.5 + 33.3 + 14.28 /3 = 50/3 = 16.6 km/h

Answer:

Sugar dissolves because energy is given off when the slightly polar sucrose molecules form intermolecular bonds with the polar water molecules.

Explanation:

The balanced chemical equation between pottasium and chlorine is as follows: 2K + Cl₂ → 2KCl. It is a combination reaction.

A chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

According to this question, a chemical reaction occurs between potassium metal and chlorine gas to form pottasium chloride as follows:

2K + Cl₂ → 2KCl

The chemical reaction is a combination reaction because it involves the combination of two elements to form a compound.

Learn more about chemical reaction at: https://brainly.com/question/22817140

#SPJ1

Answer:3.381 X 10^(-11)

Explanation:

The formula for buoyant force is F = -Volume*density*gravitational acceleration. Convert volume and density to SI units and then apply them in the formula where gravitational acceleration is 9.8m/s^2. Done

Temperature influences the spontaneity of a reaction by affecting both the enthalpy (ΔH) and entropy (ΔS) terms in the Gibbs free energy equation. The balance between these two factors determines the direction and spontaneity of the reaction.

Temperature plays a significant role in determining whether a reaction is spontaneous or not. To understand this, let's first review the concept of Gibbs free energy (ΔG). Gibbs free energy is a thermodynamic property that measures the maximum amount of useful work that can be extracted from a system at constant temperature and pressure.

ΔG is related to spontaneity through the equation: ΔG = ΔH - TΔS

In this equation, ΔH represents the change in enthalpy (heat content) of the system, ΔS represents the change in entropy (disorder) of the system, and T is the temperature in Kelvin.

Temperature and Enthalpy (ΔH):

The enthalpy change of a reaction, ΔH, reflects the difference in energy between the reactants and the products. Reactions can be either exothermic (ΔH < 0) or endothermic (ΔH > 0). When the temperature is low, an exothermic reaction has a more negative ΔH, making the ΔG term (ΔH - TΔS) more negative. Consequently, the reaction is more likely to be spontaneous. Conversely, at high temperatures, the ΔH term becomes less negative, reducing the overall spontaneity of the reaction.

Temperature and Entropy (ΔS):

Entropy, ΔS, measures the degree of disorder in a system. Generally, reactions that lead to an increase in the total number of product molecules have a positive ΔS. Increased disorder (positive ΔS) contributes to a negative ΔG term, making the reaction more likely to be spontaneous. Higher temperatures favor a greater degree of disorder, enhancing the spontaneous nature of reactions with positive ΔS.

Temperature and ΔG:

The relationship between temperature and spontaneity is directly related to the ΔG term in the equation ΔG = ΔH - TΔS. When ΔG is negative, the reaction is spontaneous. Conversely, when ΔG is positive, the reaction is non-spontaneous. If the reaction is at equilibrium, ΔG is zero. At low temperatures, the ΔH term predominantly influences the spontaneity of the reaction, while at high temperatures, the ΔS term becomes more significant.

Click the below link, to learn more about spontaneity :

https://brainly.com/question/31878181

#SPJ11

Answer:Yes. Adding or losing neutrons will change the atomic mass without forming a different element.

Explanation: Brainly

For some cases, there really isn’t much of a difference: For many recipes, starches and flour can be used interchangeably without a drastic effect.

Answer:

2.5 g of platinum

Explanation:

Recall that a catalyst is a specie added to a reaction system to increase the rate of reaction. A catalyst does not participate in the chemical reaction hence it remains unchanged at the end of the chemical reaction. A catalyst merely provides an alternative reaction pathway by lowering the activation energy of the reaction system. Hence a catalysed reaction usually proceeds faster with less energy requirement than the uncatalysed reaction.

Since the catalyst does not participate in the reactions and remains unchanged at the end of the reaction, the mass of platinum will remain the same (2.5g). The mass can only change if a specie participates in the chemical reaction. Hence the answer.

2.5 g of platinum will there be left in the vessel at the end of the reaction

The following information should be considered:

learn more: https://brainly.com/question/2514933?referrer=searchResults

Answer:

D

Explanation:

Answer:

D

Explanation:

1000 mL = 1 L

so

1000 × 4.6 = 4600

The preferred chair to sit on a sunny day is the one made of aluminum. It offers a more comfortable seating experience compared to the iron chair. The aluminum chair's higher specific heat capacity helps it absorb less heat and stay cooler.

Aluminum is the preferred choice for sitting on a sunny day due to its higher specific heat capacity (c=0.89 J/g°C) compared to iron (c=0.45 J/g°C). Specific heat capacity refers to the amount of heat energy required to raise the temperature of a substance by one degree Celsius per gram.

When exposed to the sun, both chairs will absorb heat energy from the sunlight. However, aluminum has a higher specific heat capacity, meaning it can absorb more heat energy per gram compared to iron. This results in the aluminum chair heating up at a slower rate than the iron chair.

The slower rate of heat absorption by the aluminum chair makes it more comfortable to sit on during a sunny day. It will take longer for the aluminum chair to reach an uncomfortable temperature compared to the iron chair, providing a more pleasant seating experience.

Learn more about Aluminum Chair

brainly.com/question/29446016

#SPJ11

During replacement reaction cu(no3)2 and zn; Zn(NO3)2 + Cu are produced.

One element in a compound is replaced by another in a chemical reaction known as a single-displacement reaction, sometimes referred to as a single replacement reaction or exchange reaction.

An exchange of ions between the two reacting chemicals to create new compounds that are distinct from the two reacting compounds is known as a double displacement reaction. The following is an example:

XB + AY = XY + AB

To know more about replacement reaction, click here,

brainly.com/question/23918356

#SPJ4

The order of solubility from most to least can be given as carbonate>sulfate>iodate>chloride. Carbonates are the most soluble.

The maximum amount of a material that may dissolve in another is known as its solubility. A saturated solution is created when a solvent can dissolve its maximum quantity of solute before reaching equilibrium. A supersaturated solution results when extra solutes are dissolved past its equilibrium solubility point under specific circumstances.

Dissolution is the action of disintegrating. In contrast to the speed of solution, which specifies how rapidly a molecule dissolves in a solvent, solubility is not a feature of matter. The order of solubility from most to least can be given as carbonate>sulfate>iodate>chloride.

Therefore,  the order of solubility from most to least can be given as carbonate>sulfate>iodate>chloride.

To know more about solubility, here:

https://brainly.com/question/14366471

#SPJ1

Answer:

There would be no energy for cellular activities

Explanation:

Cellular respiration is the process whereby living organisms breakdown ingested food in their cells in order to obtain energy in form of ATP. In other words, respiration converts the stores energy in food molecules into usable energy by the cell. The general equation of the process is as follows:

C6H12O6 + 6O2 → 6CO2 + 6H2O

The process of cellular respiration is carried out by every living organism in order to obtain energy to perform their various metabolic activities. Hence, without RESPIRATION, there would be no energy (ATP) for use by the cell, which utterly means no cellular activities will take place.

the radioactive decay of a sample containing an unknown radioactive isotope produced 9062 disintegrations per minute. 15.06 days later, the rate of decay was found to be 2421 disintegrations per minute. Half life is 7.91 days

The half-life of an amount is the time it requires to reduce to half of its original value. In nuclear physics, the term is frequently used to define how quickly atoms undergo radioactivity or how long stable atoms stay alive. The term is also used to describe any type of exponentially decaying in general. In radioactive material, the time needed for one-half of an irradiated sample's atomic nuclei to decompose (change instantaneously into the other nuclear species by emitting particles and energy), or, equally, the time needed for the number of deformation and fracture per second of a radioactive.

Learn more about half-life here:

https://brainly.com/question/24710827

#SPJ4

Answer:

Yes, A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

What are the properties of  salt ?

Salts are ionic in nature due to the presence of ions.

They are brittle, hard and crystalline solids.

Salt is white, odorless and it has a salty taste.

Toothpick will break and splinter just like salt, exclamation, because it breaks easy and if we use a hammer on a tooth pick its gonna break and splinter just like salt.

Therefore , A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

Explanation: hope this helps

The surface area of the pyramid is 96 ft², the surface area of the square base prism is 552 ft², the surface area of the cube is 216 ft², the total surface area is 756 ft²

The surface area of the pyramid = A + 1/2 pl

Where,

A = base area

p = perimeter

l = slant height

Therefore,

A = 6² = 36 ft²

l = 4(6) = 24 ft

l = √3² + 4² = √9 + 16 = √25 = 5 ft

The surface area of the pyramid = 36 + 1 / 2 × 24 × 5 = 96 ft²

The surface area of the square base prism = 2a² + 4ah

The surface area of the square base prism = 2(6)² + 4(6)(20) = 72 + 480 = 552 ft²

The surface area of the cube  = 6l² = 6 × 6² = 6 × 36 = 216 ft²

Total surface area = 96 + 552 + 216 = 864 - 36  - 36 - 36 = 756 ft²

learn more about surface area, here:

brainly.com/question/2835293

#SPJ1

Answer:

B?

Explanation:

Answer:

Explanation:

1)

Atomic No.=27

Mass No.= 59

Protons- 27

Neutrons- 32

electrons= 27

2)

73 181 Ta

protons=73

neutrons=108

electrons=73

When the temperature increases by 1 °c from 14°c to 15°c, the increase in vapor pressure is 5%

Using Combined gas law ,

P₁V₁/T₁ = P₂V₂/T₂

Where ,

P₁ = 1 atm , V₁ and V₂ = 1 L , T₁ = 287.15 K (14°c) and T₂ = 288.15 K (15°c)

P₁V₁/T₁ = P₂V₂/T₂

V₁/T₁= (P₂/P₁)V₂/T₂

(P₂V₁) = (V₁/T₁1)×(T₂/V₂)

(P₂V₁) = (V₁/V₂)×(T₂/T₁)

(P₂/P₁) = (1L/1L)×(288.15K/287.15K)

(P₂/P₁) = 1.051×(1.051 - 1.00)

= 0.051 atm(0.051 atm/1.00 atm)

= 0.051

Hence , The resulting pressure is 5.1% higher.

The increase in vapor pressure is due to the increase in the kinetic energy of the water molecules. The molecules are moving faster and have more energy to overcome the intermolecular forces that are holding them in the liquid state. When the temperature increases, the vapor pressure also increases.

Learn more about vapor pressure at : https://brainly.com/question/11864750

#SPJ4

To make a 1 M solution of NaCl with a volume of 100 mL, you will need to weigh out 5.844 grams of NaCl.What is molarity?Molarity is a measure of the concentration of a solution and is expressed as the number of moles of solute per liter of solution.

For such more question on Molarity

https://brainly.com/question/30404105

#SPJ11

The atomic mass number of the unknown nucleus is 128.

The relationship between the radius of the nucleus r and the atomic mass A is given by

\(r ≈ (1.2 X 10^{-15}m )A^{\frac{1}{3} }\)

If we assume that the nucleus is a sphere, the volume V is

\(V = \frac{4}{3}\pi r^{3}\)

let the volume of the nucleus having atomic mass number of 64 be V, then the volume of the unknown nucleus having atomic mass number A is written as

\(=2 X \frac{4}{3} \pi (1.2 X 10^{-15})^{3} X 64\\\\=\frac{4}{3} \pi (1.2 X 10^{-15})^{3} X A\)

Thus, we find that the atomic mass number of the unknown nucleus is A=128

Learn more about atomic mass nuclear charge:

https://brainly.com/question/13537766

#SPJ4

The balanced chemical equations for the given reactions are:

16Ag + S₈  →  8Ag₂S

2 Al + 3 Br₂  →  2 AlBr₃

2 KClO₃  →  2KCl  + 3 O₂

CH₄  + O₂  →  CO₂   + 2 H₂O

2Al  + 3 O₂  → Al₂O₃

2 H₂O₂  → 2 H₂O   + 2 O₂

A balanced equation can be defined as an equation in which the number of atoms of every element involved in the reaction is equal on either side of the chemical equation.

The law of conservation of matter has to be obeyed by a balancing of a chemical equation.

By following the law of conservation of matter, the total mass of the elements of reactants will be equal to the total mass of products in a balanced chemical equation.

Learn more about the balanced chemical equation, here:

brainly.com/question/15052184

#SPJ1

Answer:

double displacement reaction also neutralization reaction cause of acid and base

Answer:

Double Replacement Reaction

Explanation:

KOH + H₃PO₄ --> K₃PO₄ + H₂O

AB + CD --> AD + BC

K goes with PO4 and H goes with OH

The characteristic of science that is missing from this experiment is that "the results are not reliable because the airplanes were only tested one time".

In conclusion, the correct option is D.

Read related link on:

https://brainly.com/question/5500131

Answer:

D

Explanation:

The rate of decomposition of XO2 after 1 hour : \(\tt A=A_o.e^{-1.08}\)

Given

the half-life 38.6 min

time of decomposition = 1 hour

Required

the rate of decomposition

Solution

First-order reaction :

\(\tt A=A_o.e^{-kt}\)

the half life=t1/2 :

\(\tt t\frac{1}{2}=\dfrac{ln~2}{k}\)

so the rate constant (k) :

\(\tt k=\dfrac{ln~2}{38.6}=0.018\)

The rate after 1 hour=60 min :

\(\tt A=A_o.e^{-0.018\times 60}\\\\A=A_o.e^{-1.08}\)

Answer:

an anion

Explanation:

since it lost a proton..it now has 3 protons and four electrons and possesses a minus charge since it is no longer neutrally charged..this minus charge makes it an anion