answer.
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
Anuta_ua [19.1K]
2 years ago
8

Identify the most common reaction conditions for the dehydration of 2,3-dimethyl-2-pentanol.Select all that apply.A. The presenc

e of a platinum catalyst.B. The presence of excess H2O.C. The presence of acetone.D. The presence of a base catalyst.E. The presence of an acid catalyst.F. The presence of heat.
Chemistry
1 answer:
defon2 years ago
8 0

Answer:

D. The presence of a base catalyst.

E. The presence of an acid catalyst. and

F. The presence of heat.

Explanation:

You might be interested in
How to correctly solve this problem : 4.05Kg+567.95g+100.1g correct and best way
VARVARA [1.3K]
Check attached file for the answer.

7 0
2 years ago
NH4NO3, whose heat of solution is 25.7 kJ/mol, is one substance that can be used in cold pack. If the goal is to decrease the te
makvit [3.9K]

Answer:

There are necessaries 35,2g of NH₄NO₃ per 100,0g of water to decrease the temperature of the solution from 25,0°C to 5,0°C

Explanation:

To decrease the temperature of the solution there are necessaries:

4,184J/g°C×(5,0°C-25,0°C)×(100,0g+X) = -Y

8368J + 83,68J/gX = Y <em>(1)</em>

Where x are grams of NH₄NO₃ you need to add and Y is the energy that you need to decrease the heat.

Also, the energy Y will be:

Y = 25700J/mol×\frac{1mol}{80,043g}X

Y = 321J/g X <em>(2)</em>

Replacing (2) in (1)

8368J + 83,68J/g X = 321J/g X

8363J = 237,32J/gX

<em>X = 35,2g</em>

<em />

Thus, there are necessaries 35,2g of NH₄NO₃ per 100,0g of water to decrease the temperature of the solution from 25,0°C to 5,0°C

I hope it helps!

6 0
2 years ago
When monomers combine to form a condensation polymer, another product is also formed. typically, this product is _____. methanol
shtirl [24]
Water is the answer!
4 0
2 years ago
Read 2 more answers
Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Por
valkas [14]

Answer:

33km due south

Explanation:

Morant Bay is 33km south of Port Antonio;

  Problem: displacement of Morant bay from Port Antonio;

Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.

So, it has magnitude and must be specified with a direction.

  • Therefore, the displacement of Morant Bay from Port Antonio is 33km due south.
4 0
2 years ago
The average concentration of bromde ion in seawater is 65 mg of bromide ion per kg of seawater. what is the molarity of the brom
allsm [11]
Usually concentrations are expressed as molarity, or moles of solute per liter solution. First, convert the mass of bromide ion to moles. The molar mass of bromine is 79.904 g/mol.

Moles of bromine = 65 mg * 1 g/1000 mg * 1 mol/79.904 g = 8.135×10⁻⁴ moles

Next, convert the mass of seawater to volume using the density.

Volume of seawater =  1 kg * 1 m³/ 1,025 kg * 1000 L/1 m³ = 0.976 L

Thus,
Molarity = 8.135×10⁻⁴ moles/0.976 L = 8.335×10⁻⁴ M
5 0
2 years ago
Other questions:
  • Which substance can be broken down by chemical means?<br> (1) CO (3) Ca<br> (2) Ce (4) Cu
    9·2 answers
  • Compute 4.659×104−2.14×104. Round the answer appropriately.
    13·2 answers
  • If a large marshmallow has a volume of 2.75 in3 and density of 0.242 g/cm3, how much would it weigh in grams? 1 in3=16.39 cm3.
    9·1 answer
  • The correct name for hno2 is ________. nitrous acid hyponitrous acid nitric acid pernitric acid hydrogen nitrate
    9·1 answer
  • The mechanism for the reaction described by 2N2O5(g) ---&gt; 4NO2(g) + O2(g) is suggested to be (1) N2O5(g) (k1)---&gt;(K-1) NO2
    9·1 answer
  • 100 mL of a 0.300 M solution of AgNO3 reacts with 100 mL of a 0.300 M solution of HCl in a coffee-cup calorimeter and the temper
    14·1 answer
  • There are ________ unpaired electrons in the Lewis symbol for a nitride ion.
    15·1 answer
  • For a hydrogen atom, which electronic transition would result in the emission of a photon with the highest energy?
    11·1 answer
  • Which statement is true about writing chemical formulas of covalent compounds?
    6·2 answers
  • 0.45 g of hydrated sodium carbonate crystals were heated until 3.87 of anhydrous power remained.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!