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Vikentia [17]
3 years ago
9

When solid barium oxide and aluminum are heated to

Chemistry
1 answer:
Tom [10]3 years ago
5 0
3BaO(s)+3Al(s)—3Ba(l) + Al2O3(s)
If you need it balanced.
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Science homework help !!
MatroZZZ [7]

Answer:

1. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.

2. On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.

3. Scientists can use gamma rays to determine the elements on other planets.

Explanation:

the explanation is above lol

5 0
3 years ago
A branching tree diagram begins with the
kherson [118]
The idea behind a tree diagram is to start on the left with the whole thing, or one. Every time several possible outcomes exist the probability in that branch splits off into a smaller branch for each outcome.
3 0
3 years ago
What percentage of the naphthalene molecules emitted a photon?
bulgar [2K]
If I'm correct buy all the formula and the work I did I'm coming up with 3.7%
5 0
4 years ago
Addition of water to an alkyne gives a keto‑enol tautomer product. Draw an enol that is in equilibrium with the given ketone
Marrrta [24]

Addition of water to an alkyne gives a keto‑enol tautomer product and that is the product changed into 2-pentanone, then the alkyne need to had been 1-pentyne. 2-pentyne might have given a combination of 2- and 3-pentanone.

<h3>What is the keto-enol means in tautomer?</h3>

They carries a carbonyl bond even as enol implies the presence of a double bond and a hydroxyl group. The keto-enol tautomerization equilibrium is depending on stabilization elements of each the keto tautomer and the enol tautomer.

  1. The enol that could provide 2-pentanone might had been pent-1- en - 2 -ol. Because an equilibrium favors the ketone so greatly, equilibrium isn't an excellent description.
  2. If the ketone have been handled with bromine, little response might be visible because the enol content material might be too low.
  3. If a catalyst have been delivered, NaOH for example, then formation of the enolate of pent-1-en - 2 - ol might shape and react with bromine.
  4. This might finally provide a bromoform product. Under acidic conditions, the enol might desire formation of the greater substituted enol constant with alkene stability.

7 0
2 years ago
A silver block, initially at 55.6∘C, is submerged into 100.0 g of water at 24.5∘C in an insulated container. The final temperatu
s344n2d4d5 [400]

Answer:

m_{Ag} = 175.987\,g

Explanation:

The First Law of Thermodynamics helps to determine the mass of the silver block:

m_{Ag}\cdot \left(0.235\,\frac{J}{g\cdot ^{\textdegree}C} \right)\cdot (55.6^{\textdegree}-27.3^{\textdegree}C) = (100\,g)\cdot \left(4.18\,\frac{J}{g\cdot ^{\textdegree}C} \right)\cdot (27.3^{\textdegree}C-24.5^{\textdegree}C)

The mass of the silver block is:

m_{Ag} = 175.987\,g

7 0
3 years ago
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