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
Scilla [17]
3 years ago
12

When potassium iodide dissolves in water, the beaker becomes warm. Which statement best describes this process? A) The ΔHsolvati

on is exothermic and the overall ΔHsolution is exothermic. B) The ΔHsolvation is exothermic but the overall ΔHsolution is endothermic. C) The ΔHsolvation is endothermic but the overall ΔHsolution is exothermic. D) The ΔHsolvation is endothermic and the overall ΔHsolution is endothermic.
Chemistry
1 answer:
iogann1982 [59]3 years ago
4 0

The answer for this pronles mis "a"  The ΔHsolvation is exothermic and the overall ΔHsolution is exothermic.

You might be interested in
How many unpaired electrons are present in a ground-state atom from each of the following groups?
musickatia [10]

For 7A(17) :

Electronic configuration ns^2 np^5

So, there are 5 unpaired electrons present in group 7A(17).

<h3>What are Unpaired Electrons?</h3>
  • An unpaired electron is an electron that doesn't form part of an electron pair when it occupies an atom's orbital in chemistry.
  • Each of an atom's three atomic orbitals, designated by the quantum numbers n, l, and m, has the capacity to hold a pair of two electrons with opposing spins.
  • Unpaired electrons are extremely uncommon in chemistry because an object carrying an unpaired electron is typically quite reactive. This is because the production of electron pairs, whether in the form of a chemical bond or as a lone pair, is frequently energetically advantageous.
  • They play a crucial role in describing reaction pathways even though they normally only appear momentarily during a reaction on a thing called a radical in organic chemistry.

To learn more about unpaired electrons with the given link

brainly.com/question/14356000

#SPJ4

6 0
2 years ago
A complete soil profile includes three layers—
Rama09 [41]
It is topsoil, subsoil, and parent material
3 0
3 years ago
Read 2 more answers
32P can be used to make any nucleotide (A, C, G, or T) radioactive. Which of the following explains why this is true?
xxMikexx [17]
B. The answer is: All nucleotides have a phosphorus atom that can be replaced with 32P.

Nucleotides contain a nitrogenous base, a five-carbon sugar, and, at least, one phosphate group. Exactly that phosphate group in the nucleotide has the phosphorus atom. Therefore, the phosphorus atom in the nucleotide can be replaced with radioactive phosphorus-32 (32P). 
3 0
3 years ago
Which of the following elements is a transition metal?
GenaCL600 [577]

Answer:

Scandium

Titanium

Vanadium

Chromium

Manganese

Iron

Cobalt

Nickel

Copper

Zinc

Yttrium

Zirconium

Niobium

Molybdenum

Technetium

Ruthenium

Rhodium

Palladium

Silver

Cadmium

Lanthanum

Hafnium

Tantalum

Tungsten

Rhenium

Osmium

Iridium

Platinum

Gold

Mercury

Actinium

Rutherfordium

Dubnium

Seaborgium

Bohrium

Hassium

Meitnerium

Darmstadtium

Roentgenium

Copernicium

Explanation:

all of those are transition metals lol

5 0
4 years ago
Read 2 more answers
What does it mean to optimize a solution ?<br> How are solutions optimize
Romashka [77]

<em><u>Question</u></em>

<em><u>What </u></em><em><u>does </u></em><em><u>it </u></em><em><u>mean </u></em><em><u>to </u></em><em><u>optimize</u></em><em><u> </u></em><em><u>a </u></em><em><u>solution?</u></em>

<em><u>To find out best possible solution for a given problem within the given constraint is generally termed as optimization</u></em>

<em><u>How </u></em><em><u>are </u></em><em><u>solution</u></em><em><u> </u></em><em><u>optimize</u></em><em><u> </u></em><em><u>?</u></em>

<em><u>To solve an optimization problem, begin by drawing a picture and introducing variables. Find an equation relating the variables. Find a function of one variable to describe the quantity that is to be minimized or maximized. Look for critical points to locate local extrema.</u></em>

6 0
3 years ago
Other questions:
  • The amino acid glycine is often used as the main ingredient of a buffer in biochemical experiments. The amino group of glycine,
    10·1 answer
  • We can change a gas to liquid by _____ the temperature and ______ the pressure.
    9·1 answer
  • Which electron transition represents a gain of energy
    12·1 answer
  • Which type of cell is E. coli?
    10·2 answers
  • A laser with a wavelength of 225 nm is shown on an isolated gas-phase sodium atom. Calculate the velocity of the ejected electro
    10·1 answer
  • You’re a little baby sister knocks over the vase of flowers on the table what kind of force is your baby sister
    10·1 answer
  • I NEED HELP PLEASE ASAP! BRAINLIEST :)
    10·1 answer
  • (hurry pls)Carl plugs in a lamp that has 0.67 of resistance and 8.1 volts running through it. What is the amount of current runn
    13·1 answer
  • A flash contains 85.6g of C7H5NO3S (Saccharine) in 2.00 litre of a solution. What is the molarity?
    13·1 answer
  • Help me please urgently needed​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!