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
forsale [732]
3 years ago
13

15 points!

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

C: It is the difference between the total kinetic and potential energy in a system.

Explanation:

You might be interested in
Calculate the mass of 29.8 mL of aluminum, which has a density of 2.00 g/mL.
MaRussiya [10]

Answer:

The answer is

<h2>59.6 g </h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

Density of aluminum = 2.00 g/mL

volume = 29.8 mL

The mass is

mass = 2 × 29.8

We have the final answer as

<h3>59.6 g</h3>

Hope this helps you

5 0
3 years ago
A 36.165 mg36.165 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put into a combustion an
erma4kov [3.2K]

Answer:

The empirical formula for the compound is C6H12SO2.

Explanation:

We'll begin by writing out what was given from the question. This is shown:

Let us consider the First experiment:

Mass of the compound = 36.165 mg

Mass of CO2 = 64.425 mg

Mass of H2O = 26.373 mg

Data obtained from the Second experiment:

Mass of compound = 47.029 mg

Mass of SO2 = 20.32 mg

Next, we'll determine the mass of C, H and S. This is illustrated below:

Molar Mass of CO2 = 12 + (2x16) = 44g/mol

Mass of C in CO2 = 12/44 x 64.425 Mass of C = 17.57 mg

Molar Mass of H2O = (2x1) + 16 = 18g/mol

Mass of H in H2O = 2/18 x 26.373

Mass of H = 2.93 mg

Molar Mass of SO2 = 32 + (16x2) = 64g/mol

Mass of S in SO2 = 32/64 x 20.32

Mass of S = 10.16 mg

At this stage, it is important we determine the percentage composition of C, H, S and O. This is illustrated below:

% of C = 17.57/36.165 x 100 = 48.58%

% of H = 2.93/36.165 x 100 = 8.10%

% of S = 10.16/47.029 x 100 = 21.60%

% of O = 100 - (48.58 + 8.1 + 21.6)

% of O = 21.72%

Now we can easily obtain the empirical formula for the compound by doing the following.

Step 1:

Divide by their molar mass

C = 48.58/12 = 4.0483

H = 8.10/1 = 8.1

S = 21.60/32 = 0.675

O = 21.72/16 = 1.3575

Step 2:

Divide by the smallest:

C = 4.0483/0.675 = 6

H = 8.1/0.675 = 12

S = 0.675/0.675 = 1

O = 1.3575/0.675 = 2

From the calculations made above, empirical formula for the compound is C6H12SO2

7 0
3 years ago
What is an example of a qualitative observation?
Lunna [17]

Answer:

20 cats.

Explanation:

7 0
3 years ago
What is the center of the atom called?
AnnZ [28]

Answer:

nucleus

Explanation:

thats 100% the answer

6 0
3 years ago
Read 2 more answers
SCIENCE<br> why is it important to distinguish the two types of crust?
Yuri [45]

Answer:

It is important to identify it because the two types of crust are made up of two different types of rock

Explanation:

Hope i helped you

4 0
2 years ago
Read 2 more answers
Other questions:
  • A barium hydroxide solution is prepared by dissolving 2.06 g of Ba(OH)2 in water to make 32.9 mL of solution. What is the concen
    11·1 answer
  • What do scientists use to increase the surface area of a solute? heat a beaker a mortar and pestle a flask a stir bar
    11·2 answers
  • During which time interval was the motion faster?<br><br><br> I NEED HELP
    12·2 answers
  • Jerome is learning how the model of the atom has changed over time as new evidence was gathered. He has images of four models of
    10·2 answers
  • (1.8 x 10-2) ÷ (9 x 102) =
    9·2 answers
  • Which compound does a plant absorb during photosynthesis?
    7·2 answers
  • What is the name of Hg2O
    6·2 answers
  • Two elements are more likely to be ionically bonded when ....
    5·1 answer
  • What happens if 2 hydrogen and 1 oxygen atoms are combined?
    8·2 answers
  • What postulate of the kinetic molecular theory best explains why gases have high fluidity? because collisions between gas partic
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!