1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vikentia [17]
2 years ago
15

HELP ME with THIS I am time i have a little bit of time and still have more questions !!! CHEMISTRY!!

Chemistry
1 answer:
rosijanka [135]2 years ago
3 0

Answer:

1. is B 2. is C or B

Explanation:

You might be interested in
Qué tipo de reacciones pertenecen las combustiones?
navik [9.2K]

Answer:

Si una reacción química libera energía, se llama reacción exotérmica. El ejemplo más común es la combustión, en la cual la energía se manifiesta en forma de calor y luz. Si, por el contrario, la reacción química requiere energía del medio para efectuarse, recibe el nombre de reacción endotérmica.

5 0
3 years ago
One problem with elimination reactions is that mixtures of products are often formed. For example, treatment of 2-bromo-2-methyl
NikAS [45]

Answer:

Structures are given below.

Explanation:

  • Treatment of 2-bromo-2-methylbutane with KOH in ethanol will give elimination of HBr through E2 mechanism.
  • H atoms adjacent to Br will be eliminated.
  • 2-bromo-2-methylbutane has two possible adjacent H atoms that can be eliminated giving mixture of products.
  • Product of this elimination reaction is alkene. Here saytzeff fule is followed during elimination. So most substituted alkene will be major product.
  • Structure of alkenes are given below.

5 0
2 years ago
A scientist has isolated a fatty acid that has 26 carbons. most of the carbon atoms in the fatty acid chain are connected by sin
Shtirlitz [24]
Answer:
            <span>Based on giveninformation, the compound is a <u>Poly Unsaturated</u> fatty acid.

Explanation:
                   Fatty acids are carboxylic acids with -COOH functional group and a chain of hydrocarbons.

Fatty Acids are classified as,

i) Saturated Fatty Acids:
                                      Those Fatty Acids in which there is no double bond between the carbon chain are called as saturated fatty acids. 

Examples:
                 Lauric Acid           </span>CH₃(CH₂)₁₀COOH<span>

                 Myristic Acid         </span>CH₃(CH₂)₁₂COOH<span>

                 Palmitic Acid         </span>CH₃(CH₂)₁₄COOH

ii) Unsaturated Fatty Acids:
                                      Those Fatty Acids in which contain a single double bond (mono-unsaturated) or more than one double bond (poly-unsaturated) d between the carbon atoms in a chain are called as unsaturated fatty acids. 

Examples:
                 <span>Linoleic acid
</span>
                 <span>Vaccenic acid

                 </span><span>Palmitoleic acid

The saturated fatty acid containing 26 carbon atoms is called as Cerotic acid. While cerotic acid containing a double bond at position 3 and 9 has a IUPAC name H</span>exacosa-3,9-dienoic acid with following structure.

3 0
3 years ago
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total vol
Svet_ta [14]

The answer is in the photo

7 0
3 years ago
how much heat is required to raise the temperature of a 5.45-g sample of iron (specific heat = 0.450 j/g°c) from 25.0°c to 79.8°
Mamont248 [21]

Answer:

134.397 Joules

Explanation:

Using the formula:

E = C × m × Δθ (where E is Energy, C is specific heat capacity and Δθ is change in temperature)

So E = 0.45×5.45×(79.8-25)

So E = 134.397 Joules

5 0
2 years ago
Other questions:
  • Plz help me and I promise I will make you he brainiest
    8·1 answer
  • According to Dalton, if 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element X
    5·1 answer
  • Explain why some atoms gain or lose electrons to form ions.
    13·2 answers
  • Fe(OH)3 → Fe2O3 + H2O<br><br>y'all help tbh please ​
    9·1 answer
  • what are we/what has someone did to prevent/lessen the negative side effects of aluminium extraction?
    14·1 answer
  • Fill in the coefficients that will balance the following reaction: a0NH4Cl + a1Ag3PO4 → a2AgCl + a3(NH4)3PO4
    8·1 answer
  • In Rutherford's golf foil experiment, no a particles stuck to the atom. If a particles had stuck to the atom, what might you hav
    5·1 answer
  • Why is the average air temperature of Makassar warmer than the average air
    13·1 answer
  • Which food type will show no colour charge when it is tested with millon's reagent /Bluret solution​
    7·1 answer
  • If you wanted to find a sample of fermium, which has an atomic number 100, where would you look?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!