Ask question

Ask question

All categories

3 years ago

15

Which of the following uses a non renewable energy resource to generate energy ? A.) biomass power plant B.) wind farm C.) firep

lace that burns wood D.) nuclear power plant

1 answer:

Reptile [31]3 years ago

7 0

It is D. nuclear power plant

You might be interested in

Which is another name for groups of elements

Kruka [31]

Answer is: another name for groups of elements is family.

There are 18 numbered groups in the periodic table.

The elements in a group have similar physical or chemical characteristics and some groups have a specific name, for example group 17 (the halogens).

Elements in the group have the same number of valence electrons, for example, chemical elements in group 15 of the periodic table have neutral atom with a valence electron configuration of ns²np³.

4 0

4 years ago

Read 2 more answers

Ethylenediamine (en) forms an octahedral complex with Ni2+(aq) with the formula [Ni(en)3]2+. Ni2+(aq) + 3 en ⇌ [Ni(en)3]2+(aq) K

yawa3891 [41]

Answer:

$3.125\times 10^{-19} mol/L$ is the concentration of $Ni^{2+}(aq)$ in the solution.

Explanation:

$Ni^{2+}(aq) + 3 en\rightleftharpoons [Ni(en)_3]^{2+}(aq)$

Concentration of nickel ion = $[Ni^{2+}]=x$

Concentration of nickel complex= $[[Ni(en)_3]^{2+}]=\frac{0.16 mol}{2 L}=0.08 mol/L$

Concentration of ethylenediamine = $[en]=\frac{0.80 mol}{2 L}=0.40 mol/L$

The formation constant of the complex = $K_f=4.0\times 10^{18}$

The expression of formation constant is given as:

$K_f=\frac{[[Ni(en)_3]^{2+}]}{[Ni^{2+}][en]^3}$

$4.0\times 10^{18}=\frac{0.08 mol/L}{x\times (0.40 mol/L)^3}$

$x=\frac{0.08 mol/L}{4.0\times 10^{18}\times (0.40 mol/L)^3}$

$x=3.125\times 10^{-19} mol/L$

$3.125\times 10^{-19} mol/L$ is the concentration of $Ni^{2+}(aq)$ in the solution.

6 0

4 years ago

Which of the following is a chemical property? A- density B- melting point C- solubility D- toxicity

Nimfa-mama [501]

Answer:

D

Explanation:

<u>Toxic</u><u> </u><u>chemical</u><u> </u>as any substance which may be harmful to the environment or hazardous to your health if inhaled, ingested, or absorbed through the skin.

6 0

3 years ago

When solid surfaces slide over each other, the kind of friction that occurs is _ friction

abruzzese [7]

When solid surfaces slide over each other, the kind of friction that occurs is called <u>Sliding Friction.</u>

6 0

3 years ago

lozanna [386]

Answer:

The Answer is A

Explanation:

particles in gas much like any other particles vibrate. but gas is moving constantly so the answer would be A

5 0

3 years ago