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3 years ago

8

What is the name of th branch of science that specifically studies the conversion of chemical energy to electrical energy and vi

ce versa?

1 answer:

Montano1993 [528]3 years ago

4 0

Electrochemistry would be the science

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Hydrogen react ls with oxygen at room temperature to form

Mice21 [21]

Answer:

<em>When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide.</em>

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2 years ago

Hi what is kinematic??

Fiesta28 [93]

Answer:

Kinematics is a branch of physics concerned with the geometrically possible motion of a body or system of bodies without considering the forces which are involved

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2 years ago

A sample was then prepared containing 14.00 mL of coffee and 8.00 mL of 4.80 ppm Li , and diluted to a 50.00 mL total volume. Th

mafiozo [28]

Answer:

The right answer is " $[Na^+]=5.57 \ ppm$ ".

Explanation:

The given values are:

$\frac{A_s}{A_{coffee}} =\frac{0.840}{1.000}$

According to the question,

The concentration of standard will be:

= $\frac{7.80}{50.00}\times 4.80$

= $0.156\times 4.80$

= $0.748 \ ppm$

Coffee after dilution,

⇒ $\frac{A_{coffee}}{C_{coffee}} =F\times \frac{A_s}{C_s}$

or,

⇒ $C_{coffee}=\frac{A_{coffee}}{A_s}\times \frac{C_s}{F}$

On substituting the values, we get

⇒ $=\frac{1.000}{0.840}\times \frac{0.748}{1.68}$

⇒ $=1.191\times 1.3104$

⇒ $=1.561 \ ppm$

hence,

In unknown sample, the concentration of coffee will be:

= $1.561\times \frac{50}{14}$

= $\frac{78.05}{14}$

= $5.57 \ ppm$

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3 years ago

What type of reaction is the following chemical reaction? SeO2 + 3Cl2 -> SeCl6 + O2

dem82 [27]

Answer:

This is a synthesis reaction.

Explanation:

This is because nothing is being swapped out, reactants are being combined and then form a product.

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3 years ago

What are the two main types of luster? A. dense and porous B. coarse and smooth C. metallic and nonmetallic D. striated and non-

Molodets [167]

The answer is metallic and nonmetallic.

3 0

3 years ago

Read 2 more answers