Help needed ASAP!!!!!!!

Help Needed ASAP!!!!!!!

Answers

Answer 1

Answer:

120 liters

Explanation:

From the question,

Applying boyles law

PV = P'V'................ Equation 1

Where P = initial pressure, V = Initial Volume, P' = Final pressure, V' = Final Volume.

make V' The subject of the equation

V' = PV/P'............. Equation 2

Given: P = 2 kpa, V = 60 liters, P' = 1 kpa

Substitute these values into equation 2

V' = (2×60)/1

V' = 120 liters

Hence the right option is A. 120 liters


Related Questions



The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the most? (3 points)




a


Silver, 0.239 J/(g °C)


b


Aluminum, 0.921 J/(g °C)


c


Lithium, 3.56 J/(g °C)


d


Water, 4.184 J/(g °C)

Answers

Answer:

the answer is B

Explanation:

Rank from largest to smallest equilibrium constant. To rank items as equivalent, overlap them KBr2, KCl2, KI2

Answers

Answer:

KCl[tex]_{2}[/tex], >  KBr[tex]_{2}[/tex], > KI[tex]_{2}[/tex]

Explanation:

KBr[tex]_{2}[/tex],   KCl[tex]_{2}[/tex],   KI[tex]_{2}[/tex]

The equilibrium constant for the reaction between Alkene and Halogen to give Alkyl halide as a product

Keq = [tex]\frac{[C2H4X2 ]}{[C2H4 ][ X2]}[/tex]

hence the order of equilibrium from the Largest to the smallest equilibrium

= KCl[tex]_{2}[/tex], >  KBr[tex]_{2}[/tex], > KI[tex]_{2}[/tex]

You are given three liquids. You know that one of them is a suspension, one is a solution with nonelectrolytes, and the other is a solution with electrolytes. Describe the process by which you would differentiate between the three.

Answers

Answer:

decant/ filter then decompose the electrolytes by electrolysis

Explanation:

Differentiation of suspension solution is done by filtering and differentiation of electrolyte and non-electrolyte solution is done by electrolysis process.

What is electrolysis process?

Electrolysis process is used to decompose the any electrolyte present in any solution into their constitute ions towards the cathodes and anodes under the electric flow of current.

Process which is required to differentiate suspension solution is filtering, because in this solution suspended insoluble particles are present which get filtered. Now to differentiate between non electrolyte and electrolyte solution we will use the electrolysis process, as non electrolyte solution do not show any behavior in this.

Hence, we use filtering and electrolysis process for the differentiation.

To know more about electrolysis, visit the below link:
https://brainly.com/question/25712870

Help me pretty please

Answers

Answer:

The top answer

How many moles are in 100.0g of gold

Answers

0.50769... It is just the 100g divided by golds molar mass, which is 196.97

which of the following describes the properties of a substance?

A. how it reacts with other chemicals.
B. how it behaves.
C. all of these.
D. how it looks​

Answers

The answer is A how it react with other chemicals


❤️
C all of them because all these can describe peoperties like color or texture or reactions or different behavior

Helppppppppppppppppppppppppppppppppppppp

Answers

Answer:

0.67moles

Explanation:

The balanced equation of the chemical reaction given in this question is:

N2 + 3H2 → 2NH3

According to this equation, 3 moles of hydrogen gas (H2) produces 2 moles of ammonia gas (NH3)

Therefore, 1 mole of hydrogen gas (H2) will produce;

= 1 × 2/3

= 2/3

= 0.6666

= 0.67moles of ammonia (NH3)

For the reaction So3 + H2O -> H2SO4, how many grams of sulfur trioxide are required to produce 4.00 mol of sulfuric acid

Answers

Answer:

320 grams of sulfur trioxide are required to produce 4.00 mol of sulfuric acid.

Explanation:

The balanced reaction is:

SO₃ + H₂O → H₂SO₄

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:

SO₃: 1 moleH₂O: 1 moleH₂SO₄: 1 mole

Being the molar mass of each compound:

SO₃: 80 g/moleH₂O: 18 g/moleH₂SO₄: 98 g/mole

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

SO₃: 1 mole* 80 g/mole= 80 gramsH₂O: 1 mole* 18 g/mole= 18 gramsH₂SO₄: 1 mole* 98 g/mole= 98 grams

Then you can apply the following rule of three: if 1 mole of sulfuric acid is produced by the reaction of 80 grams of sulfur trioxide, 4 moles of sulfuric acid is produced from how much mass of sulfur trioxide?

[tex]mass of sulfur trioxide= \frac{4 moles of sulfuric acid* 80 grams of sulfur trioxide}{1 mole of sulfuric acid }[/tex]

mass of sulfur trioxide= 320 grams

320 grams of sulfur trioxide are required to produce 4.00 mol of sulfuric acid.

The mass of the required compound is 320 grams

Chemical reactions

Given the chemical equation expressed as:

[tex]SO_3 + H_2O \rightarrow H_2SO_4[/tex]

According to stochiometry, 1 mole of SO3  produces 1 mole of H2SO4, hence the moles of SO3 will also be 4.00moles

Determine the mass of SO3

Mass = mole * molar mass

Mass = 4.0 * [32+3(16)]

Mass = 4.0 * 80

Mass = 320 grams

The mass of the required compound is 320 grams

Learn more on stoichiometry here:  https://brainly.com/question/16060223

please help me with this question

Answers

Answer:

Magnesium Hydroxide or Milk of Magnesia

Explanation:

The chemical sign for Magnesium is Mg, and OH automatically means Hydroxide.

magnesium Hydroxide, or milk magnesium

As the girl leaves her room, she flips the switch to turn off the light. Turning off the light make
A :a closed circuit
B :a series circuit
C :a parallel circuit
D :an open circuit

Answers

Answer:

A.

Explanation:

An alpha particle is identical to a:

helium nucleus
hydrogen nucleus
high energy electron
radium nucleus

Answers

The answer is
Helium
Hope this helped

Answer: helium nucleus

Sn(IV) and Br
chemical formula

Answers

the chemical is SnBr4 I’m pretty sure

In a city, the buildings, streets, air,
and water are all ______
parts of the environment.

Answers

Answer:

living part of the environment

Name the gas that the limewater in the flask is testing for.

Answers

Answer:

Explanation:

Carbon dioxide is the answer I think.

Hope it helps...

what is my name?
chetana
ikshya
grishma
bhumika
puja​

Answers

they're name of bunch of girls.

The molarity of a solution that contains 28 g KOH (molar mass 56 g/mol) per 250 mL of solution is:

Answers

Molarity = moles of solute/volume of solution in liters

The solute here is KOH. We have the mass of KOH, and we can calculate the number of moles by dividing by the molar mass: (28 g KOH)/(56 g/mol) = 0.5 mol KOH. The volume of our solution is 0.250 L.

So, the molarity of the solution would be (0.5 mol KOH)/(0.250 L) = 2 mol/L KOH or 2 M KOH.

Why do silver and copper have similar properties?
(7th Grade science)

Answers

Answer:

They are both listed under group 11 on the periodic table and both are highly conductive of electricity

Explanation:

HOPE THIS HELPS ^^

Also, both are metals which means both are very conductive, shiny, and mailable

any force that causes an object to move in a circle is called

Answers

Answer: Any force that causes an object to move in a circle is called centripetal force.

Select the correct answer.
John is riding a ski lift to the top of Wildcat Mountain. He removes his gloves and rapidly rubs his hands together to warm them up. What
happens when John rubs his hands?
O A. The skin on his hands rapidly conducts heat, similar to metal.
O B. He traps heat between his hands because skin is an insulator. IS
O C. The particles In his hands vibrate faster because of friction.
O D. Thermal energy moves from his fingertips to his palms.
O E. He simulates a fever that'll raise his core body temperature.

Answers

Answer:

Fairly certain it's C. The particles In his hands vibrate faster because of friction :)

Answer:

C

Explanation:

Which phrase best describes an individual organ

Answers

Answer:

the answer is B

Explanation:

True or False: Only animals can move pollen from plant to plant.
A. True
B. False

Answers

i think false because of the wind or insects

3 of 12
Assessment: Force and Motion CBA
Four students recorded the time it took them to walk to school from their homes as shown in the table
below.
Student
1
2
3
Motion of Four Students
Distance (meters) Time (minutes)
1,100
20
1,026
19
848
16
795
15
4
Which student had the greatest average speed?
Student 1
Student 2
Student 3
Student 4
1
2
3
4
5
6
7
8
9
10
Next

Answers

The answer is 1,026 students hope this helps

Circle the letter next to each sentence that is true concerning the compressibility of gases. a. The large relative distances between particles in a gas means that there is considerable empty space between the particles. b. The assumption that particles in a gas are relatively far apart explains gas compressibility. c. Compressibility is a measure of how much the volume of matter decreases under pressure. d. Energy is released by a gas when it is compressed.

Answers

Answer:

The large relative distances between particles in a gas means that there is considerable empty space between the particles.

The assumption that particles in a gas are relatively far apart explains gas compressibility.

Compressibility is a measure of how much the volume of matter decreases under pressure.

Energy is released by a gas when it is compressed

Explanation:

The kinetic molecular theory establishes that gases are composed of molecules. These molecules of gas are far apart from each other hence there is a considerable empty space between the gas molecules. As a result of these empty spaces between gas molecules, it is possible to compress a gas.

Compressibility is defined as a measure of how much the volume of matter decreases under pressure. When a gas is compressed, work is done on the gas and energy is evolved hence the gas heats up.

help? please and thank you! very much appreciated

Answers

Answer:

Option B is correct

Explanation:

The Formula of Nitrate is NO₃⁻

-TheUnknownScientist

PLEASE Answer asap! Compare two periodic families below. You must include at least two facts about each family. You may use any description of properties or periodic trends to help you.

Answers

Answer:

The alkali metals/group 1 are recognized as a group and family of elements. These elements are metals. Sodium and potassium are examples of elements in this family. Hydrogen is not considered an alkali metal because the gas does not exhibit the typical properties of the group. The largest family of elements consists of transition metals/group 3-12/group 3a. The center of the periodic table contains the transition metals, plus the two rows below the body of the table (lanthanides and actinides) are special transition metals. Even though both are metals, transition metals have higher melting points; they have higher density; they are less reactive with water; they react and form ions with different charges, but Group 1 metals only form 1+ ions. (Hope the is helpful! You can reword it if you want...)(same answer from the other same question you posted)

Convert 544 Calories to Joule

Answers

Answer:

2276.1 Joules

Explanation

One calorie is equal to 4.184 Joules. So, 544 calories will be equal to 544*4.184=2276.1 Joules

2276096 joules


multiply the energy value by 4184

Bloc ate 1 craft craft had 3 crafts. How much crafts are there?

Answers

If he had 3 and then ate 1 them that would mean that he has 2 crafts left


Based on this diagram, which type of stars would belong to spectral class M and have the
highest luminosity?

Answers

Answer:J , the answer is super giants

In which of the following groups of ions are the charges all shown
correctly?

Answers

Answer:

magnesium and potassium are the group of ions

Explanation:

magnessium has positive charge and pottasium has negative charge

can someone help with this???

Answers

Answer:

2Mg(s) +O₂(g) → 2MgO(s)

Explanation:

Mg(s) +O₂(g) → MgO(s)

When a chemical equation is balanced, the number of atoms of each element is equal on both sides of the arrow. We usually balance O and H last.

In this case, the number of Mg atoms is equal on both sides. Thus, let's move on to balance the O atoms. On the left side, there are 2 O atoms, while there is only 1 O atom on the left side. Thus, write a '2' in front of MgO.

Mg(s) +O₂(g) → 2MgO(s)

Now, the number of Mg atoms is not equal. Write a '2' in front of Mg to balance it.

2Mg(s) +O₂(g) → 2MgO(s)

The equation is now balanced with 2 Mg atoms and 2 O atoms on each side.

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