Which best describes the effect of J. J. Thomson’s discovery

Answers

Answer 1

Answer: Well one effect of J. J. Thomson's discovery is that he actually got a Nobel Prize. I don't really know what your choices are, so it's kinda difficult to know what you need.

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Convert to grams0.100 moles of Co2

Which formulas represent compounds that are isomers of each other?H HH-C-H and H C-HH H2 HO-C-H and H C-OHH HH-C-C-C OH and H-C O-C-C-HH HH H HOH HH OH H4 H-C-C-C-H and H C C-HH H

Answers

Answer : The correct option is, (3)

Explanation :

Isomers : It is defined as the molecule that has the same chemical formula but it has the different structures.

Same chemical formula means that the same number of elements are present in both the compounds.

In option 1,2 and 4, both chemical formula and the structure are different. So, the option 1 compounds are not the isomers of each other.

In option 3, the chemical formula is same but the structure are different. So, the option 3 compounds are the isomers of each other.

Hence, the correct option is, (3)

The answer is number 3

Initially, a 55.0 liter compressible container, holding 2.4 moles of a gas, exerts a pressure of 760 millimeters of mercury at a temperature of 280 Kelvin. What is the pressure when the container is compressed to 43.0 liters, the moles of gas reduces to 1.8 moles, and the temperature changes to 36 degrees Celsius?93.7 mm Hg
492 mm Hg
740 mm Hg
805 mm Hg

Answers

Answer:

805 mmHg is the pressure when the container is compressed

Explanation:

Initial Volume of the gas, V = 55.0 L

Initial Moles of the gas, n = 2.4 mol

Initial Pressure of the gas ,P=760 mmHg

initial temperature of the gas, T = 280 K

Using an Ideal gas equation:

$PV=nRT$

$R=(PV)/(nT)$ ...(1)

Final Volume of the gas, V '= 43.0 L

Final Moles of the gas, n' = 1.8 mol

Final Pressure of the gas = p'

Final temperature of the gas, T' =36 °C = 309 K

Using an Ideal gas equation:

$R=(P'V')/(n'T')$ ..(2)

(1)=(2)

$(PV)/(nT)=(P'V')/(n'T')$

$(760 mmHg* 55.0 L)/(2.4 mol* 280 K)=(P'* 43.0 L)/(1.8 mol* 309 K)$

P' = 805 mmHg

805 mmHg is the pressure when the container is compressed.

You would have to use the ideal gas law for this:
PV=nRT
Pressure, Volume, n=moles, R gas constant, Temperature in Kelvin
P=nRT/V
(1.8mol)(62.36)(309K)/43.0L = 805mm Hg

You are using a calorimeter to calculate the specific heat capacity of a metallic ore. The calorimeter contains 0.50 kilograms of water at room temperature (22 °C). We heat the ore in boiling water and then drop the metal into the calorimeter and wait for the water and metal to reach the same temperature. The mass of the ore is 3.5 kilograms. We find that the water has increased in temperature to 24.3 °C. Recall that the specific heat of water is 4.18 J/g–°C. Calculate the specific heat capacity of the ore.

Answers

the specific heat capacity of the ore : 0.018 J/g°C

Further explanation

In the calorimeter, the heat received is the same as the heat released

Q abs = Q release

Heat can be calculated using the formula:

Q = mc∆T

Q = heat, J

m = mass, g

c = specific heat, joules / g ° C

∆T = temperature difference, ° C / K

Q released by a metallic ore and absorbed by water at calorimeter

Q ore = Q water

Q water

m = 0.5 kg = 500 g

c = 4.18 J/g–°C.

Δt = 24.3 - 22 = 2.3

$\tt Q=m.c.\Delta t\n\nQ=500* 4.18* 2.3=4807~J$

the specific heat capacity of the ore.

Q ore = Q water = 4807 J

m ore = 3.5 kg = 3500 g

Δt = 100 - 24.3 = 75.7

$\tt 4807=3500* c* 75.7\n\nc=0.018~J/g^oC$

Water(H2O) is composed of the same elements as carbon monoxide (CO). How do their properties compare?A. They have the same properties because they have the same arrangement of atoms.
B. They have different properties because the arrangement of atoms is different.
C. They have the same properties because they have the same atoms.
D. They have different properties because they have different atoms.

Answer is B.

Answers

The correct answer of the given question above would be option B. Water is composed of the same elements as carbon monoxide, but their properties compare because they have different properties due to the different arrangement of atoms. Hope this answer helps.

Answer:

B is the answer

Explanation:

I took the test

Which type of energy is generated due to the movement of charged particles?nuclear energy
chemical energy
electrical energy
mechanical energy

Answers

electrical energy or the answer C

Electrical energy as chare carriers are flowing

Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters of gas would be produced at STP?