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Zielflug [23.3K]
4 years ago
13

Identify the atom H₄ CH₄ N

Chemistry
1 answer:
marysya [2.9K]4 years ago
3 0

Answer:

Organic Molecule.

Explanation:

Any molecule with C atoms and H atoms are organic molecules<em> </em>in chemistry.

Examples could be C₄H₅, C₉H₁₈O₆, C₅H₁₂N.

You might be interested in
Processes are always spontaneous when ________ ( H and S refer to the system).
Serga [27]

Answer:

Explanation:

A spontaneous chemical process is one in which product formation is favoured under the specified conditions. A spontaneous process yields the product without an external input of energy.

A spontaneous reaction will always occur when ∆H is negative and ∆S is positive. These are the signs of enthalpy and and entropy change that gives rise to a spontaneous chemical process at all temperatures. Recall that a spontaneous process is one in which ∆G<0.

5 0
3 years ago
Consider the following reaction in which all reactants and products are gases.
Tasya [4]

Based on the equation of the reaction, the moles of chlorine gas initially in the vessel is 0.12 moles

<h3>How many moles of chlorine were initially present?</h3>

The moles of chlorine initially present is determined using the equation of the reaction:

  • P4 + 6 Cl2 ⟶ 4 PCl3

At STP, 1 mole of P4 reacts with 6 moles of chlorine.

Molar mass of P4 = 124.0 g

Molar mass of chlorine = 71.0 g

Mass of P4 in reaction vessel = 250 mg = 0.25g

moles of P4 in 0.25 g = 0.25/124 = 0.02 moles

0.02 moles of P4 will react with 0.02 × 6 moles of chlorine = 0.12 moles of chlorine.

Therefore, the moles of chlorine gas initially in the vessel is 0.12 moles.

Learn more about moles of a gas at: brainly.com/question/25417922

3 0
2 years ago
Give the formula of a reagent which will form a
Sloan [31]

Answer:

The group reagent is H2S in the presence of NH4Cl .

Explanation:

Mn is fourth group radical in qualitative analysis ;

           the group reagent is H2S in the presence of NH4Cl .

then Mn precipitates as buff coloured sulphide , which is soluble in HCl .

    MnS + 2HCl --------->  MnCl2 + H2S

on heating the solution with NaOH with bromine water, manganesedioxide gets precipitated.

MnCl2 + 2NaOH --------> Mn(OH)2 + 2NaCl

Mn(OH)2 + O -------> MnO2 + H2O

  whereas NiS is insoluble in HCl. the nickel chloride gives a scarlet red precipitate with dimethy gly oxime.

5 0
3 years ago
If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be drawn?
fomenos

Answer:

its A

Explanation:

8 0
3 years ago
A 642 mL sample of oxygen gas at 23.5°C and 795 mm Hg, is heated to 31.7°C and the volume of the gas expands to 957 mL. What is
Ratling [72]
We can use the combined gas law equation to find the new pressure of the gas. 
\frac{P1V1}{T1} =  \frac{P2V2}{T2}
where P - pressure 
V - volume
T - temperature 
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation 
P1 - 795 mm Hg x 0.0013 atm/ mm Hg = 1.033 atm
T1 - 23.5 °C + 273 = 296.5 K
T2 - 31.7 °C + 273 = 304.7 K
substituting the values in the equation 
\frac{1.033 atm *642 mL}{296.5K}=   \frac{P*957mL}{304.7K}
P = 0.712 atm 
the answer closest to this value is A) 0.723 atm
therefore answer is 
<span>A) 0.723 atm</span>
8 0
4 years ago
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