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ss7ja [257]
3 years ago
15

La valencia que utiliza el hidrógeno al formar un hidruro metálico es

Chemistry
1 answer:
Serjik [45]3 years ago
4 0

Answer: Esta tendencia es tan regular que el poder de combinación, o valencia, de un elemento se definió una vez como el número de átomos de hidrógeno unidos al elemento en su hidruro. El hidrógeno es el único elemento que forma compuestos en los que los electrones de valencia están en la capa n = 1.

Explanation:

¡Espero que esto ayude!

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How many mL of .1250 M KCl solution contains 2.330g of KCl? KCl = 74.55 amu
lozanna [386]
The amu is a unit which means the mass per neutron, So the 74.55 means the mass per mole KCl. So the mole number of 2.330g KCl is 2.330/74.55=0.031 mol. The volume is 0.031/0.1250=0.248 L ≈ 250 mL. So the answer is a.
8 0
3 years ago
Give a term for each description.Organic chemicals that can vaporize into the air.Secondary chemicals whose formation is facilit
Phantasy [73]

Answer:

  1. Volatile organic compounds
  2. secondary pollutants or photochemical substances
  3. Air Quality
  4. Air pollution
  5. Aerosols

Explanation:

Volatile organic compounds are the  organic chemicals that get easily vaporized in air.

The secondary chemicals or the secondary pollutants are the photochemical substances that are formed in the presence of sunlight.

The amount of gases and small particles present in the atmosphere, responsible for influencing ecosystem and the wellness of human beings is known as the Air Quality

Air pollution refers to the high concentrations of gases or small particles that are present in the atmosphere, which can cause harm to the humans and other living organisms and structures established by humans.

Aerosols are the tiny particles present in liquid or solid state, that are suspended in air.

4 0
3 years ago
Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there is only one chiral center i
Nina [5.8K]

Answer:

Molecule #1 ( sobrerol )

Center a: R

Center b: S

Molecule #2 ( pulegone )

Center a: none

Center b: R

Explanation:

The lowest priority group is curved the clockwise configuration of molecule is referred to as S and anti clockwise configuration is R. The absolute configuration of chiral center is defined by Cahn-ingold-Prelog rules. The sobrerol has center a as R configuration and center b as S configuration. The center a configuration of pulegone is none.

4 0
3 years ago
Which of the three variables that apply to equal amounts of gases are directly proportional? which are inversely proportional?
Tems11 [23]
According to sources, the most probable answer to this query is relationship among variables is explained. Direct proportionality means that variables are similar in terms of magnitude, whereas indirect is the opposite.


Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
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3 years ago
A polymer coating of 6:0 mm thickness is cast onto a nonporous flat surface. The coating contains a residual amount of casting s
Alika [10]

Answer:

vent vapor concentration in the air to nearly zero. The effective diffusion coefficient of the solvent molecules in the polymer is 2 x 10^-6 cm^2/s

Explanation:

7 0
3 years ago
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