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
elena-14-01-66 [18.8K]
3 years ago
8

Regan has an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If s

he collected all of the pieces of the cup, how much mass would all of the pieces have combined?
Chemistry
1 answer:
Alex73 [517]3 years ago
4 0
10 kgsince when uultiply
You might be interested in
If you heat the cup of soup in the microwave to make it boil. Will it have a higher total kinetic energy than the bowl of soup?
Paha777 [63]

No, The kinetic energy depends upon the number of particles motion. The hot bowl of soup will have greater number of particles in motion and it will contain more kinetic energy than the cup of soup.

8 0
2 years ago
Calculate the concentration of OH- in a solution that contains 3.9 x 10-4 M H3O+ at 25°C. Identify the solution as acidic, basic
aalyn [17]

Answer:

[OH⁻] = 2,6x10⁻¹¹

Acidic

Explanation:

The kw in water is:

2 H₂O(l) ⇄ OH⁻(aq) + H₃O⁺(aq)

kw = [OH⁻] [H₃O⁺] = 1,00x10⁻¹⁴

If concentracion of H₃O⁺ is 3,9x10⁻⁴M:

[OH⁻] [3,9x10⁻⁴M] = 1,00x10⁻¹⁴

<em>[OH⁻] = 2,6x10⁻¹¹</em>

pH is defined as - log[H₃O⁺]. If pH>7,0 the solution is basic, if pH<7,0 solution is acidic, if pH=7,0 solution is neutral.

In this problem,

pH = - log [3,9x10⁻⁴M] = <em>3,4</em>

As pH is < 7.0, the solution is <em>acidic</em>

<em></em>

I hope it helps!

8 0
3 years ago
A student prepares a solution of Potassium Nitrate (KNO3) containing 95g at 40 C. This solution is -
Sholpan [36]

Answer:

unsaturated

Explanation:

4 0
1 year ago
Find the number of Grams
zaharov [31]

Answer: 462 g

Explanation:molar mass is M= 63.55 +2·(12.01+14.01)= 115.59 g/mol.

Mass m= n·M = 4.0 mol·115.59 g/mol= 462.36 g

8 0
2 years ago
Need help with this can someone help me pls the word box are words your supposed to use. Will mark brainiest btw
dybincka [34]

Your Welcome.

How about let's just forget about that other stuff and be friends?

And my internet connection isn't very good so I can't see the pictures.

4 0
2 years ago
Other questions:
  • A sample of NO2 in a 1550 mL metal cylinder at 70.26 kPa has its temperature changed from 480oC to -237oC while its volume is si
    15·1 answer
  • In this experiment, a calibration curve, often called a Beer's Law plot, will be made. A calibration curve should have which of
    6·1 answer
  • Which substance is least soluble at 90°C?
    12·1 answer
  • If i have a 50 liter container that holds 45 moles of gas at a temperature of 200 degrees C, what is the pressure inside the con
    11·1 answer
  • Calculate the percent ionization of 1.60 M aqueous acetic acid solution. For acetic acid, Ka=1.8×10−5.
    8·1 answer
  • What is the difference between active transport? Which one requires energy?
    6·2 answers
  • A student noticed that the size of the hot pack becomes bigger when magnesium sulfate reacts with water. She thinks that more at
    8·1 answer
  • Could a copper metal container be used to store a solution of silver nitrate
    5·1 answer
  • Can someone help me with this chem question?
    12·2 answers
  • Choose a property of matter and research how this property affects the way matter interacts with the world around it. Find out h
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!