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
elena55 [62]
3 years ago
7

2. Which is NOT true? Higher temperatures are indications of higher average kinetic energy. Temperature is a measure of the aver

age kinetic energy of the molecules in a substance. As molecules in a sample move faster, the average kinetic energy will be higher. As the molecules in a sample move faster, the temperature reading will be lower.
Chemistry
1 answer:
kirza4 [7]3 years ago
8 0

"As the molecules in a sample move faster the temperature reading will be lower" is not true.

You might be interested in
After performing a dilution calculation, you determine you need 25.0 milliliters of an aqueous stock solution to make 100.0 mill
IRINA_888 [86]
A is obviously out because it leads to a volume of 125.0 milliliters of the new solution and gives you a lower concentration than you were aiming for.

D is out because you are adding 75 milliliters of the stock solution, so your concentration would be too high. You only need 25.0 milometers of stock solution per 100 milliliters of the new solution.

C is also out because it leads to 50.0 milliliters stock solution per 100 milliliters of the new solution and hence the wrong concentration.

B is by default the correct answer. It also details the correct technique. First you add the stock solution (This you know from your calculations to be 25 milliliters.) then you add the water up to the volume you needed. (Because the calculations only tell you the total volume of water not what you need to add) You also add the water last so you can rinse the neck of the flask to make sure you also get all the stock solution residue into the stock solution.

I would add the final step of stirring, but B is the only answer that can be correct.
8 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL GIVE YOU BRAINLIEST PLEASE
g100num [7]

Answer:

the answer is the second choice actual force

6 0
3 years ago
At what point in time (A ,B or C) is the reaction the fastest? How do you know?
gladu [14]
Don’t click that link EVER, they try to use your camera fsr
4 0
3 years ago
Determine the heat energy needed to raise the temperature of 120 grams of ice at -5 to steam at 115°
CaHeK987 [17]

Answer:

Q = 30355.2 J

Explanation:

Given data:

Mass of ice = 120 g

Initial temperature = -5°C

Final temperature = 115°C

Energy required = ?

Solution:

Specific heat capacity of ice is = 2.108 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Q = m.c. ΔT

ΔT = T2 -T1

ΔT = 115 - (-5°C)

ΔT = 120 °C

Q = 120 g × 2.108 j/g.°C × 120 °C

Q = 30355.2 J

5 0
3 years ago
Can someone please definition of atomic radius using , nucleus, valence electrons and energy.❤️
OLEGan [10]

Answer:

Explanation:

-The Atomic Radius of an element is the distance between the center of an atom

-nucleus and its outermost, or valence electrons. ... These changes are caused by the interaction between the positive charge of the protons

- nucleus and the negative charge of all the atom's electrons.

5 0
3 years ago
Other questions:
  • The rock in a lead ore deposit contains 89 % PbS by mass. How many kilograms of the rock must be processed to obtain 1.5 kg of P
    6·1 answer
  • The world produces about 3.9 billion tons of food every year. Of that amount, approximately 2.6 billion tons is consumed each ye
    11·2 answers
  • What is the volume of NH3 produced in the following reaction when 3.0L of N2 reacts with 4.0L of H2?
    11·2 answers
  • The equilibrium constant for the chemical equation is Kp = 5.23 at 191 °C. Calculate the value of the Kc for the reaction at 191
    6·1 answer
  • Which of the following is an example of kinetic energy?
    13·2 answers
  • What is the boiling point of propanone if the pressure<br> on its surface is 48 kilopascals?
    9·1 answer
  • Vitamin C contains the elements C, H, and O. It is known to contain 40.9% C and 4.58% H by mass. The molar mass of vitamin C has
    6·1 answer
  • Solute separates as a solid when a saturated solution is cooled why​
    13·1 answer
  • 50 POINTS
    11·2 answers
  • Calculate the volume of solvent present in a 55.5%<br> by volume of 10.5 mL alcohol solution.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!