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Flura [38]
3 years ago
14

Match these items.

Chemistry
1 answer:
Dimas [21]3 years ago
5 0

\huge{\mathbb{\tt { QUESTION↓}}}

1. Built the first American A.C. generator.

2. Found a relationship between electricity and magnetism.

3. Associated with gas and oil.

4. First workable electric light bulb.

5. Developed the equations E=mc^2

6. Provides majority of the energy in the United States.

7. Splitting heavy atoms

8. Produces plutonium

9. Powered by falling water or stream pressure

10. Thin silicon slices

11. Using heat from the earth

\huge{\mathbb{\tt {ANSWER↓}}}

\color{black}{\tt {1.) \: h. \: Westing \: house}}

  • Built the first American A.C. generator

\color{black}{\tt {2.) \:  Oersted}}

  • Hans Christian Oersted <u>discovered</u> the <u>relationship between electricity and magnetism</u> in 1820.

\color{black}{\tt {3.) \: j. Gas \:  and  \: oil}}

  • <u>Associated gas</u> refers to the natural <u>gas</u> found in association with <u>oil</u> within the reservoir. There are also reservoirs that contain only natural gas and no <u>oil</u>, this <u>gas</u> is termed <u>non-associated gas.</u>

<u>\color{black}{\tt {4.) \: c.Edison}}</u>

  • By January 1879, at his laboratory in Menlo Park, New Jersey, <u>Edison</u> had built his first high resistance, <u>incandescent</u> <u>electric light</u>. It worked by passing electricity through a thin platinum <u>filament</u> in the glass vacuum bulb, which delayed the <u>filament</u> from melting. Still, the lamp only burned for a few short hours.

\color{black}{\tt { 5.) \:  d. Einstein}}

  • <u>E = mc2, equation</u> in German-born physicist Albert Einstein's theory of special relativity that expresses the fact that mass and <u>energy</u> are the same physical entity and can be changed into each other.

\color{black}{\tt {6.)i.solar cells}}

  • <u>Energy Sources in the United States</u>
  • Petroleum (crude oil and natural gas plant liquids): 28% Coal: 17.8% Renewable energy: 12.7% Nuclear electric power: 9.6%"

\color{black}{\tt { 7.)  \: g. fission}}

  • <u>Nuclear fission</u> is a process by which the nucleus of an <u>atom</u> is <u>split</u> into two or more smaller nuclei, known as fission products. The fission of <u>heavy elements</u> is an exothermic reaction, and <u>huge</u> amounts of energy are released in the process.

\color{black}{\tt { 8.) Sorry \:  but \:  I \:  don't  \: know \:  the \:  answer}}

\color{black}{\tt { 9.) Sorry \:  but \:  i  \: don't  \: know \:  the \:  answer}}

\color{black}{\tt { 10. ) \: Sorry \:   \: But  \: I \:  don't \:  know \:  the  \: answer }}

\color{black}{\tt {11.) \:  b. Geothermal}}

  • <u>Geothermal/GSHP</u> systems take advantage of nature's underground temperatures by exchanging <u>heat with</u> the <u>earth using</u> an underground network of water (or refrigerant) filled pipes. In the winter, the liquid pulls <u>heat</u> from the ground and transfers it to the house through an exchanger.

#CarryOnLearning

#LetsEnjoyTheSummer

<h3>→XxKim02xX</h3>
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If a 1.00 mL sample of the reaction mixture for the equilibrium constant experiment required 32.40 mL of 0.258 M NaOH to titrate
andrey2020 [161]

Answer:

The concentration of acetic acid is 8.36 M

Explanation:

Step 1: Data given

Volume of acetic acid = 1.00 mL = 0.001 L

Volume of NaOH = 32.40 mL = 0.03240 L

Molarity of NaOH = 0.258 M

Step 2: The balanced equation

CH3COOH + NaOH → CH3COONa + H2O

Step 3: Calculate the concentration of the acetic acid

b*Ca*Va = a*Cb*Vb

⇒with b = the coefficient of NaOH = 1

⇒with Ca = the concentration of CH3COOH = TO BE DETERMINED

⇒with Va = the volume of CH3COOH = 1.00 mL = 0.001L

⇒with a = the coefficient of CH3COOH = 1

⇒with Cb = the concentration of NaOH = 0.258 M

⇒with Vb = the volume of NaOH = 32.40 mL = 0.03240 L

Ca * 0.001 L = 0.258 * 0.03240

Ca = 8.36 M

The concentration of acetic acid is 8.36 M

6 0
4 years ago
ANSWER ASAP IF YOU KNOW THIS ......What is the mass number of this atom?
trasher [3.6K]
The correct answer is 7 I just took the test :)
6 0
3 years ago
Read 2 more answers
What is the molarity of 1 mole of HCl in 5 liters of solution?
kicyunya [14]
Molarity = moles of solute(HCl)
                  ------------------------------------
                   volume of the solution
               
                =   1
                    ------
                     5 
               
                =  0.2M.

Hence option B is correct.
Hope this helps!!
5 0
3 years ago
Read 2 more answers
I wanted known how many of the reaction below is energy released
Tema [17]

Answer:

2

Explanation:

In two reactions energy is released.

1) C₆H₁₂O₆ + 6O₂    →    6H₂O + 6CO₂ + heat

It is cellular respiration reaction.It involves the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

2) 2H₂ + O₂   →    2H₂O  ΔH = -486 kj/mol

The given reaction is formation of water. In this reaction oxygen and hydrogen react to form water and 486 kj/mol is also released.

The reaction in which heat is released is called exothermic reaction.

Exothermic reaction:

The type of reactions in which energy is released are called exothermic reactions.

In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.

For example:

Chemical equation:

C + O₂   →  CO₂

ΔH = -393 Kj/mol

it can be written as,

C + O₂   →  CO₂ + 393 Kj/mol

Endothermic reactions:

The type of reactions in which energy is absorbed are called endothermic reactions.

In this type of reaction energy needed to break the bond are higher than the energy released during bond formation.

For example:

C + H₂O   →  CO  + H₂

ΔH = +131 kj/mol

it can be written as,

C +  H₂O  + 131 kj/mol  →  CO  + H₂

5 0
3 years ago
A 0.0000792 M sample of Compound X in a solvent has an absorbance of 0.341 at 528 nm in a 1.000-cm cuvet. The solvent alone has
natima [27]

Answer:

a) a = 3485 M⁻¹cm⁻¹

b) C = 0,000127 M

Explanation:

Lambert-Beer law says that there is a linear relationship between absorbance and concentration of a chemical substance. The formula is:

A = a×b×C

Where A is absorbance, a is molar absorptivity, b is path length and C is concentration.

a) In the problem Concentration is 0.0000792 M, b is 1,000cm and Absorbance is absorbance of sample-absorbance of blank: 0,341-0,065 = 0,276

Replacing:

0,276 = a×1,000cm×0,0000792M

<em>a = 3485 M⁻¹cm⁻¹</em>

b) As the experiment consist in the same compound in the same solvent, the molar absorptivity will be the same, a = 3485 M⁻¹cm⁻¹, path length will be 1,000cm and absorbance: 0,508-0,065 = 0,443

Replacing:

0,443 = 3485 M⁻¹cm⁻¹×1,000cm×C

<em>C = 0,000127 M </em>

<em></em>

I hope it helps!

8 0
3 years ago
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