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EleoNora [17]
3 years ago
12

Which of the following compounds would contain a total of three carbon atoms? A. 1-butene B. Propane C. 2-triene D. Heptane

Chemistry
2 answers:
svetoff [14.1K]3 years ago
7 0
The answer would be propane
Gnesinka [82]3 years ago
3 0

Answer:

B- Proprane

Explanation:

The propane molecule has three carbon atoms

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PLS HELP ME! This is on a test btw! What is the momentum of a 150 kg linebacker traveling at 6 m/seconds.
andrey2020 [161]

Answer:

p = 900 kg·m/s

Explanation:

Calculate momentum given mass and velocity:

P = M*V

p = 150*6

4 0
3 years ago
The average titration volume of the 0.09876 M NaOH used in back titration is 29.59
Mama L [17]

Answer:

The number of moles of HCl in the 250 mL volumetric flask is 0.003 moles

Explanation:

Firstly, we solve for the concentration of acid using the formula

CaVa/CbVb = nₐ/nb

where Ca is the concentration of acid

Cb is the concentration of base

Va is the volume of acid

Vb is the volume of base

nₐ is the number of moles of acid (from the equation)

nb is the number of moles of base (from the equation)

Ca × 250/0.09876 × 29.59 = 1/1

Ca = 0.09876 × 29.59/250

Ca = 0.012 M

To determine the number of moles of HCl acid present in the 250 ml volumetric flask, the formula for molarity is used

Molarity = number of moles ÷ volume (in liter or dm³)

Volume needs to be converted to liter; 250 ml ⇒ 0.25 L

Molarity of the acid is 0.012 M

From the formula above, number of moles = molarity × volume (in liter)

number of moles = 0.012 × 0.25

number of moles of acid = 0.003 moles

8 0
3 years ago
I have 2 electrons in first shell 8 in the second shell and 6 in 3 shell
hjlf

17 shells would be it

6 0
3 years ago
When water dissociates, each water molecule splits into a hydroxide ion and ______. A) H 3 O + B) a hydrogen atom C) a hydrogen
finlep [7]

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

Water is a molecule which is formed by the combination of hydrogen and oxygen atoms. The chemical formula for this is H_2O

Ionization is a special type of dissociation process. It is defined as the process in which a molecules splits into its ions.

When water dissociates, it leads to the formation of 2 ions, which are hydroxide ion and hydrogen ion.

The chemical equation for ionization or dissociation of water molecule is:

H_2O(l)\rightarrow H^+(aq.)+OH^-(aq.)

Hence, the correct answer is Option C.

6 0
3 years ago
How much heat is absorbed/released when 25.00 g of NH3(g) reacts in the presence of excess O2(g) to produce NO(g) and H2O(l) acc
Lena [83]

Answer:

429.4 kJ are absorbed in the endothermic reaction.

Explanation:

The balanced chemical equation tells us that 1168 kJ of heat are absorbed in the reaction when 4 mol of NH₃ (g) react with 5 mol O₂ (g).

So what we need is to calculates how many moles represent 25 g NH₃(g) and calculate the heat absorbed. (NH₃ is the limiting reagent)

Molar Mass NH₃  = 17.03 g/mol

mol NH₃ = 25.00 g/ 17.03 g/mol = 1.47 mol

1168 kJ /4 mol NH₃  x 1.47 mol  NH₃ =  429.4 kJ

7 0
2 years ago
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