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
Nitella [24]
3 years ago
7

How can we choose the best chemicals to create a cold or hot pack?

Chemistry
1 answer:
sergejj [24]3 years ago
6 0
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ It would depend on whether they would create an endothermic reaction or exothermic. For a hot pack, the chemicals would need to release energy (heat). However, a cold pack would need chemicals that need to draw heat from the surroundings to produce a cool sensation.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

You might be interested in
How can you which molecule is positive and negative in a dipole-dipole relationship?
marysya [2.9K]
Dipole interactions are observed in covalent bonds. In ionic bonding, permanent transfer of electrons occurs and due to this dipole-dipole interactions are not observed. In covalent bonding, electron cloud is shared between 2 atoms. If this electron cloud is not shared equally between them, polarities are formed in a molecule. And hence we say that the molecule is polar. For a molecule to be polar, there should be electronegativity difference between them. Atom with greater electronegative attracts electron cloud more towards itself whereas atom with lesser electronegative attracts electron cloud less. But there is no permanent transfer of electrons. Due to this electronegativity differences, atom with more electronegative gains partial negative charge and atom with lesser electronegative value gains partial positive charge. The charge is partial because there is no complete transfer of electrons.
5 0
3 years ago
A complex ion that forms in solution has a structure that:____.
xeze [42]

Answer:

can only be determined experimentally.

Explanation:

In the early days of inorganic chemistry, the structure of complex ions remained a mystery hence the name ''complex''.

These ions appear to have structures that defied accurate elucidation. However, by diligent laboratory investigation, Alfred Werner was able to accurately determine the structure of cobalt complexes. As a result of this, he is regarded as a pathfinder in coordination chemistry.

Hence, the structure of complex ions can only be determined experimentally.

6 0
3 years ago
23. The reaction
Sindrei [870]

Answer:

b mi disputa se eu não asetar

6 0
3 years ago
An object was measured by a worker as 35.6 cm long, however, the manufacturer specifications list the length of the object at 35
Anon25 [30]
The answer for this question is 1.71%
7 0
3 years ago
What type of bond is present in the Cl2 molecule?
Maksim231197 [3]

Answer: single covalent bond

Explanation: Chlorine is a simple molecule. each chlorine atom can count 8 electrons in its outer shell. with other chlorine atoms. One pair of shared electrons form a single covalent bond.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do you know what to fwemszvjsnvrgojewfgvrkjefkjerwf
    13·1 answer
  • 0.80 g of hydrogen chloride (hcl is dissolved in water to make 5.5 l of solution. what is the ph of the resulting hydrochloric a
    14·1 answer
  • which of the following is the smallest in volume? nucleus of oxygen atom, water molcule, protron, ice crystal, electron cloud of
    14·1 answer
  • what would you be most likely to measure by immsering and object in water and seeing how much the water level rises
    11·1 answer
  • What is the volume, in liters, of 0.500 mol of c3 h8 gas at stp?
    15·1 answer
  • What must be done to the following half-reactions before they can be added together?Mn (s) → Mn 2+ (aq) + 2e − Fe 3+ (aq) + 3e −
    6·1 answer
  • Wegener's claim was that the continents drifted from their original positions in Pangea
    6·1 answer
  • How many atoms are in 12 moles of I. Check your significant figures.
    15·1 answer
  • For each pair circle the neutral element with the largest atomic radius K or Cs ,Ti or As ,Br or F
    5·1 answer
  • Please help!!! will give 25 points!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!