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
andriy [413]
3 years ago
12

10. A sample of an unknown composition was tested in a laboratory. The sample could not be broken down by

Chemistry
2 answers:
damaskus [11]3 years ago
8 0

Answer:

it would be an element because its an element

Explanation:

vfiekz [6]3 years ago
7 0
It’s element it’s correct
You might be interested in
This is 20 points!!!
Ann [662]

Answer:

I think it both physical & chemical change :')

5 0
2 years ago
Convert 0.02 g/mL to the unit g/L.
Vilka [71]
0,02 g/mL = 20 g/L

:)
4 0
3 years ago
How many electrons are in the n = 2 shell of a magnesium atom?
Montano1993 [528]

Answer:

eight

Explanation:

That means there are 12 electrons in a magnesium atom

hope this helps

8 0
2 years ago
The pitch of a sound is related to its<br> frequency<br> amplitude
valina [46]

Answer:

The pitch of a sound is related to its frequency.

Explanation:

The higher the frequency, the higher the pitch will be

Amplitude is related to how loud a sound is

6 0
3 years ago
Read 2 more answers
You have to prepare 100.0 mL of a 0.100 M solution of sodium carbonate. You have a concentrated solution of sodium carbonate tha
Georgia [21]

Answer:

6.9 ml of concentrate

Explanation:

100 ml   of .1 M   will require .01 moles

from a 1.45 M solution,  .01 mole would be

  .01 mole / ( 1.45 mole / liter) = 6.9 ml of the concentrate   then dilute to 100 ml

4 0
2 years ago
Other questions:
  • Draw the Lewis structure of PH3. To add lone pairs, click the A lone pair button has two dots. button before clicking on the mol
    9·1 answer
  • Which of the following is an example of organic matter salt water or air​
    10·1 answer
  • How many grams of magnesium metal will react completely with 5.2 liters of 4.0 M HCl? Show all of the work needed to solve this
    12·1 answer
  • Which changes can reach dynamic equilibrium
    14·1 answer
  • If the volume of 0.100M HCl delivered to 10.0mL of NaOH is 12.0mL the NaOH concentration is
    12·1 answer
  • Which type of heat transfer causes a person sitting by the fire to feel warm
    9·2 answers
  • Please help me I will give you the brain thing and extra points. <br> image below
    8·2 answers
  • What mass of dinitrogen monoxide, N2O, contains the same number of molecules as 3.00 g of trichlorofluoromethane, CCl3F?
    14·1 answer
  • 1.On the periodic table, what is a period? What characteristic is shared
    8·1 answer
  • You need to prepare 500 mL of a 0.250 M NaOH solution for a titration. What mass of NaOH is needed to
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!