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
Nataly [62]
3 years ago
8

During physical changes ,matter always retains its

Chemistry
1 answer:
svlad2 [7]3 years ago
7 0
During physical changes, matter always retains its chemical properties.
You might be interested in
A sample of an unknown gas with a mass of 8.21 g has a volume of 4.8064 L when the temperature is 200oC and the pressure is 1.81
Pie

Answer:

The answer to your question is M = 36.49 g

Explanation:

Data

mass = 8.21 g

volume = 4.8064 L

Temperature = 200°C

Pressure = 1.816 atm

M = ?

Process

1.- Convert temperature to °K

°K = 273 + 200

°K = 473

2.- Calculate the number of moles

n = (PV)/RT

n = (1.816)(4.8064)/(0.082)(473)

n = 0.225

3.- Calculate the molar mass

            M --------------- 1 mol

           8.21 g ---------- 0.225 moles

M = (1 x 8.21)/0.225

M = 36.49 g

4 0
3 years ago
A teacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and pH in
VMariaS [17]

Answer:

1. Comparative

2. Independent variable

3. The pH is the Dependent variable

6 0
3 years ago
Read 2 more answers
how many moles of water are in 1.23 x 10^18 water molecules? I need the answer in scientific notation ?
Ann [662]

Answer:

Moles=2.04×10^(-6)

Explanation:

No. Of moles=no. Of particles/ Avogadro's no

(Where no. Of particles may be atoms molecules or compounds)

Moles=1.23×10^18/6.022×10^23

Moles=0.204×10^(-5)

Moles=2.04×10^(-6)

8 0
3 years ago
Drag the types of electromagnetic waves to place them in order of increasing frequency.
DanielleElmas [232]

Answer: UV Light is the highest!

Explanation:

Ultraviolet Light has the highest frequency between the three, Visible Light would stay in the middle since its in the middle of the spectrum, thus making Infrared the lowest.

7 0
3 years ago
Read 2 more answers
How many visible impact craters does the moon contain?
frez [133]
I believe the answer is B. a million or more.
5 0
3 years ago
Other questions:
  • Which fats result when manufacturers add hydrogen to fat molecules in vegetable oil?
    12·2 answers
  • Why does sugar sink to the bottom of a tea cup?
    9·2 answers
  • Which describes the role of carbon dioxide in photosynthesis?
    9·2 answers
  • The complement protein cascade is the same for the classical pathway, alternative pathway, and lectin pathway after the point in
    15·1 answer
  • Which statement is true about a neutral solution? Its pH is less than 7. Its pH is greater than 7. It has the same concentration
    9·2 answers
  • A certain atom has a nucleus containing six protons and eight neutrons and has six electrons orbiting the nucleus
    8·1 answer
  • How many grams are there in 2.4 moles of CaCO3?
    9·1 answer
  • So confused can someone help ?
    5·1 answer
  • Which measurement is a vector?
    5·1 answer
  • Hydrogen bond is an example for? (PLEASE HELP!)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!