(True or False) It would be most appropriate to use the noble gas core [He] when writing the shorthand electron configuration for sulfur.

Answers

Answer 1

Answer: The answer is false.

Answer 2

Answer: No it should be Ne as it is its closest noble gas.

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Which statement best explains why different gases effuse at different rates?At a given pressure, gas particles with smaller masses move faster.

At a given pressure, gas particles with smaller masses move slower.

At a given temperature, gas particles with smaller masses move faster.

At a given temperature, gas particles with smaller masses move slower

Answers

Answer: Different gases effuse at different rates because at a given temperature, gas particles with smaller masses move faster.

Explanation: The motion of particles in a gas depends on the kinetic energy of the gas particles which further depend on the temperature of the gas. Thus, the rate of gas given by Graham's law can only be stated when the two gases are at fixed temperature.

Graham's Law: This law states that the rate of effusion of gas is inversely proportional to the square root of its mass.

Mathematically,

$((Rate)_1)/((Rate)_2)=\sqrt{(M_2)/(M_1)}$

From the above relation, the gas particle with smaller mass will effuse faster at a given temperature.

Your answer is A. At a given pressure, gas particles with smaller masses move faster.

Hope this helps.

Why must soft iron be used with an electromagnet?

Answers

The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when the current is flowing. Soft iron is used because it loses its magnetism as soon as the current stops flowing.

Answer: it is easily magnetized

Explanation:

Which is a characteristic property of acids? A-they, turn blue litmus paper red . B-they, turn red litmus paper blue. C-they tastes bitter D-they don't react with metals

Answers

Answer:

Option A

Explanation:

Option A - Blue litmus paper turns red under acidic conditions so this option is correct.

Option B - Acids do not turn red litmus paper red, bases are the ones responsible for that. Hence, this option is incorrect.

Option C - Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion. This option is incorrect.

Option D - This option is incorrect as acid reacts with metal, to form salt and hydrogen.

They turn blue litmus paper to red.

They also taste sour.

Water is densest at 4°C. What is that temperature on the Kelvin scale?

Answers

Answer : The temperature on the kelvin scale is, 277.15 Kelvin

Explanation :

As we are given the temperature in degree Celsius. Now we have to need to convert the temperature from degree Celsius into kelvin.

Conversion used for the temperature from degree Celsius to Kelvin :

$K=^oC+273.15\n\nK=4^oC+273.15=277.15K$

Therefore, the temperature on the kelvin scale is, 277.15 Kelvin

4 + 273.15 = 277.15K

Which of the following can’t be separated into simpler substances or converted into another substance by chemical processes?a. elements
b. compound
c. solution
d. suspension
e. colloid

Answers

The correct answer is A. An element cannot be separated into simpler substances or converted into another substance by chemical processes. Elements are the most simplest form of the chemicals. They are what we see in the periodic table.

The substances that can't be separated into simpler substances or converted into other substances by chemical processes are elements. They are fundamental substances and cannot be changed into other elements through chemical processes. The correct answer to the given question is option a. elements

The answer to your question is a. elements. In chemistry, elements are substances that cannot be separated into simpler substances or converted into another substance by chemical processes.

This is what makes them fundamental substances. Chemical processes can change compounds, solutions, suspensions, and colloids into different substances, but they cannot change an element into a different element. For example, hydrogen is an element that cannot be converted into any other element through chemical processes. It is fundamentally hydrogen.

The correct answer to the given question is option a. elements

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The element carbon, nitrogen, and oxygen are all part of the same?

Answers

The elements carbon, nitrogen and oxygen are all part of the same row or period on the periodic table of elements.

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Which of the following examples is a compound containing an ionic bond?A. O2 B. H2O C. CaO D. CH4

HELP UNDERSTAND, PLEASE! In a reaction, 15 moles of carbon dioxide are produced from 5 moles of iron (III) oxide and 15 moles of carbon monoxide. What is the mole ratio of carbon dioxide to carbon monoxide?15:55:151:31:1