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
lora16 [44]
2 years ago
15

Can you guys help me with this one too

Chemistry
1 answer:
Mrrafil [7]2 years ago
4 0
C I think not sure give it a try
You might be interested in
Is this the correct procedure for cleaning volumetric glassware prior to making a measurement: first, rinse with tap water. Seco
Bogdan [553]

The steps to be followed while cleaning volumetric glassware are:

1. Remnants from the previous measurements are wiped off with the help of paper towel.

2. The glassware is then soaked overnight in warm soap solution.

3. Then before rinsing with tap water, the glassware are scrubbed with an appropriate brush.

4. After scrubbing, the glassware is rinsed thoroughly with tap water in order to make sure there are no traces of soap solution.

5. The glassware is then rinsed with de-ionized water and finally with the solution that would be used for the volumetric measurement.

6 0
2 years ago
Read 2 more answers
All physical changes can be identified at the macroscopic level. true or false
Aliun [14]

Answer:

True

Explanation:

The physical changes are reversible in most cases and these changes are not the chemical changes which means that it is only the change in its state not in their nature. Just take the example of water, on cooling it becomes solid and change in color can be seen which is white in solid form and colorless in liquid form. This is also reversible and is a physical change. This means that physical changes can be identified at macroscopic level. Hence the answer is true.

5 0
3 years ago
Which properties of a substance could change during a<br> PHYSICAL change?
olga2289 [7]
It’s appearance
It’s physical form
What it feels like
How hot it gets
If it melts
Shape
Color
4 0
2 years ago
I am having trouble converting :(
Elza [17]

Answer:

For the first question, to determine the total number of molecules of nitrogen dioxide, first make use of the molar mass of the nonpolar compound and then use that to find the total number of moles and then subsequently after make use of the ratio for the Avogadro's number to determine the total number of molecules of this compound.

For the final question, do the inverse, where we make use of the molecules of the compound and then use Avogadro's number to determine the moles of the compound and then use the same molar mass of the compound to determine the grams of the Nitrogen Dioxide.

3 0
2 years ago
A lab is done using different metals and the density of the metals are recorded in a data table. What is the independent variabl
vovikov84 [41]

Answer:   The independent variable is the type of metal being used.

{Note:  The "dependent variable" is the "measured density" that corresponds to each of the metals."}.

___________________________________________

Explanation:

___________________________________________

The "independent variable", which is plotted on the "x-axis" (horizontal axis), is the variable that can be "controlled/manipulated".  In this case, this would be the type of metal chosen.

The "dependent variable" , which is plotted on the "y-axis" (vertical axis) is the "obtained value/measurement/result" (that "cannot be controlled/manipulated").

In this case, the "density", which is the "measured value" that corresponds to the selected "meal", is the "dependent variable".

___________________________________________

Hope this helpful to you!

   Wishing you well!

___________________________________________

6 0
3 years ago
Other questions:
  • I need help. ASAP! Look at the picture below. (4)
    6·2 answers
  • What is the balanced equation when aluminum reacts with copper (ii) sulfate in a single displacement reaction?
    9·1 answer
  • Which of the following types of molecules always has a dipole moment? Linear molecules with two identical bonds. Trigonal pyrami
    5·1 answer
  • Help please !!!
    8·1 answer
  • Electrophiles for the electrophilic aromatic substitution reactions have to be very strong to react with the stable aromatic rin
    5·1 answer
  • Which substance may lower air temperatures after a volcanic eruption? lava O sulfur dioxide O carbon dioxide O water vapor​
    13·2 answers
  • There are 1 1/2 times the amount of<br> we need on the planet today
    13·1 answer
  • Which of these would produce a soft sound A (a slow vibration) B (a big vibration) C (a fast vibration) or D (a tiny vibration)
    5·1 answer
  • What are the names of those?
    13·1 answer
  • The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!