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
docker41 [41]
3 years ago
7

Please help i don’t understand

Chemistry
1 answer:
konstantin123 [22]3 years ago
6 0
They are asking about the molecule change!
You might be interested in
A student prepares a solution of Potassium Nitrate (KNO3) containing 95g at 40 C. This solution is -
Sholpan [36]

Answer:

unsaturated

Explanation:

4 0
2 years ago
What characteristic of gases makes them different from liquids or solids?
Marrrta [24]
<span>The particles are far apart from each other.</span>
5 0
3 years ago
In the compound CO2, how many lone pairs are on the central atom?
Cloud [144]
There are 4 lone pairs of electrons present in the carbon dioxide molecule 
4 0
3 years ago
Predict, using Boyle’s Law, what will happen to a balloon that an ocean diver takes to a pressure of 202 kPa (normal atmospheric
kaheart [24]

Explanation:

Balloon that an ocean diver takes to a pressure of 202 k Pa will get reduced in size that is the volume of the balloon will get reduced. This is because pressure and volume of the gas are inversely related to each other.

According to Boyle's law: The pressure of the gas  is inversely proportional to the volume occupied by the gas at constant temperature(in Kelvins).

pressure\propto \frac{1}{volume} (At constant temperature)

The pressure beneath the sea is 202 kPa and the atmospheric pressure  is 101.3 kPa . This increase in pressure will result in decrease in volume occupied by the gas inside the balloon with decrease in size of a balloon. Hence, the size of the balloon will get reduced at 202 kPa (under sea).

7 0
3 years ago
35.2 J of heat is
ruslelena [56]

The specific heat : c = 0.306 J/g K

<h3>Further explanation</h3>

Given

Heat = 35.2 J

Mass = 16 g

Temperature difference : 7.2 K =

Required

The specific heat

Solution

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Input the value :

c = Q / m.∆T  

c = 35.2 / 16 x 7.2

c = 0.306 J/g K

7 0
3 years ago
Other questions:
  • Why doesn't potassium fluoride conduct electricity as a solid?
    8·1 answer
  • When a patient comes to a hospital with severe dehydration, doctors will give them an IV filled with a salt-water solution calle
    8·1 answer
  • You place a pan of water on the stove and turn on the heat. The water begins to boil. What is happening?
    14·1 answer
  • Calculate the percent ionization of nitrous acid in a solution that is 0.249 M in nitrous acid. The acid dissociation constant o
    11·1 answer
  • Solid lithium iodide decomposes into solid lithium and iodine gas . Write a balanced chemical equation for this reaction.
    11·2 answers
  • The vapor pressure of a system at equilibrium
    10·1 answer
  • Someone help me please
    5·2 answers
  • Determine el número de muléculas y átomos contenidos en 64g de O2
    10·1 answer
  • What could be a reason for the difference between the theoretical and experimental heats of reaction
    7·1 answer
  • Explain why nickel is a good conductor of heat​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!