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2 years ago

What occupations may light and sound be involved in and what branch of science is their study?

Chemistry

1 answer:

Maslowich2 years ago

6 0

Explanation:

Physics: The study of matter and energy and the interactions between them. Physicists study such subjects as gravity, light, and time.

The question is a bit confusing but here i go..

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A chemical bond between two atoms results from a simultaneous

Elena L [17]

If you are asking for the word for this definition it is a <span>attraction by the two nucluei</span>

7 0

3 years ago

Read 2 more answers

What is the mass in grams of 0.000142 mol of vitamin c

bazaltina [42]

Answer:

0.0250 g

Explanation:

Step 1: Determine the molar mass of Vitamin C.

The molar mass is the mass in grams corresponding to 1 mole. In order to calculate the molar mass of vitamin C (C₆H₈O₆) we need to add the molar masses of the elements that compose it.

M(C₆H₈O₆) = 6 × M(C) + 8 × M(H) + 6 × M(O)

M(C₆H₈O₆) = 6 × 12.01 g/mol + 8 × 1.01 g/mol + 6 × 16.00 g/mol

M(C₆H₈O₆) = 176.14 g/mol

Step 2: Calculate the mass corresponding to 0.000142 mol of vitamin C.

$0.000142 mol \times \frac{176.14g}{mol} =0.0250 g$

7 0

3 years ago

If 3.0 liters of oxygen gas react with excess carbon monoxide at STP, how many liters of carbon dioxide can be produced under th

mr_godi [17]

Answer:

The volume of CO2 produced is 6.0 L (option D)

Explanation:

Step 1: Data given

Volume of oxygen = 3.0 L

Carbon monoxide = CO = in excess

Step 2: The balanced equation

2 CO (g) + O2 (g) → 2 CO2 (g)

Step 3: Calculate moles of O2

1 mol of gas at STP = 22.4 L

3.0 L = 0.134 moles

Step 3: Calculate moles of CO2

For 2 moles CO we need 1 mol of O2 to produce 2 moles of CO2

For 0.134 moles O2 we'll have 2*0.134 = 0.268 moles CO2

Step 4: Calculate volume of CO2

1 mol = 22.4 L

0.268 mol = 22.4 * 0.268 = 6.0 L

The volume of CO2 produced is 6.0 L

8 0

3 years ago

Which statement about the reaction is correct?

Goshia [24]

The reactions based on the absorption and release of the energy are called endothermic and exothermic reactions. The reaction is exothermic.

<h3>What is an exothermic reaction?</h3>

Exothermic reactions are the reaction in which the reactant produces products that release energy from the system to the surroundings. In the reaction bond energy of the reactant is less than the product.

Energy from the system is released in the form of heat, sound, light and electricity. The weak bonds of the compounds are replaced with stronger ones and the standard enthalpy of the reaction is negative.

Therefore, option c. reaction is exothermic is correct.

Learn more about the exothermic reactions here:

brainly.com/question/26616927

7 0

2 years ago

Read 2 more answers

6. Compare and Contrast How are the properties of acids and bases similar? How are they different?

baherus [9]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} - }$

Acids and bases both react with water and a lot of acids and bases are soluble in nature.
Both acids and bases are electrolytes which means that they’re good conductors of electricity.
Acids and bases both produce ions in water solution.
Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH–).

4 0

2 years ago

What occupations may light and sound be involved in and what branch of science is their study?​

What occupations may light and sound be involved in and what branch of science is their study?