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Trava [24]
3 years ago
6

What are the components needed in order for an experiment to be valid

Chemistry
1 answer:
liubo4ka [24]3 years ago
3 0

he components needed in order for an experiment to be valid is a hypothesis, a control, and variables.

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Hydrogen gas and nitrogen gas react to form ammonia gas. What volume of ammonia would be produced by this reaction if 6.9 m3 of
AveGali [126]

Answer:

4600 Liters NH₃(g)

Explanation:

7 0
3 years ago
Which statement best describes the total number of carbon atoms during cellular
Arisa [49]

Answer:

statement best describes the total number of carbon atoms during cellular

respiration in the fish is :

The total number of carbon atoms stays the same because the carbon from the carbon-containing food molecules is used to make molecules such as  carbon dioxide

Explanation:

Respiration : It is a process in which energy from the "food" molecule is released in the form of ATP

ATP = Adenosine Triphosphate

There are two kind of respiration process:

1. In the presence of O2 = Aerobic  Oxidation

2. In the absence of O2 = Anaerobic Oxidation

The breakdown of food into CO2 occur by three main process:

Glycolysis

Krebs cycle

Phosphorylation

The reaction for the Decomposition of the Glucose molecule is written as:

C_{6}H_{12}O_{6}+O_{2}\rightarrow 6CO_{2}+6H_{2}O+ATP

It is a oxidation - reduction reaction(Redox).

Here one substance is oxidised and other is reduced.

The number of Carbon atoms in reactant =6

It will produce = 6 CO2 in which the number of C=6

Hence ,

The total number of carbon atoms stays the same because the carbon from the carbon-containing food molecules is used to make molecules such as  carbon dioxide

4 0
3 years ago
Difference b\w bonding nd Antibonding molecular orbitals​
rewona [7]

Answer: Electrons in bonding orbitals stabilize the molecule because they are between the nuclei. They also have lower energies because they are closer to the nuclei. Antibonding orbitals place less electron density between the nuclei. The nuclear repulsions are greater, so the energy of the molecule increases.

Explanation:

7 0
3 years ago
Is fire a solid liquid or gas?
Doss [256]
Fire is actually a chemical reaction. It's an oxidation reaction to be specific. When wood gets hot enough (the part of the wood that is burning) the large hydrocarbons break down to charred solids and a gas. The gas is what reacts with oxygen in the atmosphere to produced light, CO2 and H2O.
4 0
4 years ago
Read 2 more answers
What is the pH of 0.26 M ammonium ion? NH4+(aq) + H2O(1) NH3(aq) + H30* (aq) a. 4.33 b.9.25 c. 3.87 d. 4.92 e. 4.75
choli [55]

Answer:

b) pH = 9.25

Explanation:

  • NH4+(aq)  +  H2O(l)  ↔  NH3(aq)  +  H3O+(aq)
  • NH3 + H2O ↔ NH4+  +  OH-
  • 2 H2O ↔ H3O+  +  OH-

⇒ Kb = [ NH4+ ] * [ OH- ] / [ NH3 ] = 1.86 E-5......from literature

mass balance NH4+:

⇒ M NH4+ = [ NH4+ ] - [ OH- ]

∴ [ NH3 ] ≅ M NH4+ = 0.26 M

⇒ Kb = (( 0.26 + [ OH- ] )) * [ OH- ] / 0.26 = 1.86 E-5

⇒ 0.26 [ OH-] + [ OH- ]² = 4.836 E-6

⇒ [ OH- ]² + 0.26 [ OH- ] - 4.836 E-6 = 0

⇒ [ OH- ] = 1.859 E-5 M

⇒ pOH = - Log ( 1.859 E-5 )

⇒ pOH = 4.7305

⇒ pH = 14 - pOH = 9.269

6 0
3 years ago
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