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
Katarina [22]
3 years ago
5

2. Calculate the density of a rock that has a mass of 21.58 grams and causes the water in a

Chemistry
1 answer:
mylen [45]3 years ago
3 0

Answer:

4.00 g/mL

Explanation:

Density is mass divided by volume (g/mL).

Mass of rock = 21.58

Volume of rock = 25.4 - 20.0 = 5.4mL

Density of rock = 21.58g / 5.4mL = 3.99629 g/mL

Round to the lowest number of significant figures which is three = 4.00 g/mL

You might be interested in
CK-12 Boyle and Charles's Laws if Mrs. Pa pe prepares 12.8 L of laughing gas at 100.0 k Pa and -108 °C and then she force s the
nirvana33 [79]

Answer:

The answer to your question is   P2 = 2676.6 kPa

Explanation:

Data

Volume 1 = V1 = 12.8 L                        Volume 2 = V2 = 855 ml

Temperature 1 = T1 = -108°C               Temperature 2 = 22°C

Pressure 1 = P1 = 100 kPa                    Pressure 2 = P2 =  ?

Process

- To solve this problem use the Combined gas law.

                     P1V1/T1 = P2V2/T2

-Solve for P2

                     P2 = P1V1T2 / T1V2

- Convert temperature to °K

T1 = -108 + 273 = 165°K

T2 = 22 + 273 = 295°K

- Convert volume 2 to liters

                       1000 ml -------------------- 1 l

                         855 ml --------------------  x

                         x = (855 x 1) / 1000

                         x = 0.855 l

-Substitution

                    P2 = (12.8 x 100 x 295) / (165 x 0.855)

-Simplification

                    P2 = 377600 / 141.075

-Result

                   P2 = 2676.6 kPa

3 0
3 years ago
What are elementary particles the make up protons and nuetrons
ahrayia [7]

they are made by of two types of elementary particles

electrons and quarks

quetion answered by

 (jacemorris04)

4 0
3 years ago
Read 2 more answers
I need help with this question
KiRa [710]
A challenge they could face is that the plants are not used to the climate in the new area . (sorry if it’s wrong)
5 0
3 years ago
Unscramble dreor to get a science answer
lesantik [10]
Order. 
Hope this helps! :)
5 0
3 years ago
Read 2 more answers
how many valence electrons are found in most atoms of noble gases use this information to explain why the noble gases are unreac
kvasek [131]
8 valence electrons are found in noble gases. Since noble gases have 8 valence electrons that means they have a full shell - which makes them unreactive
3 0
3 years ago
Other questions:
  • Which formula equation shows a reversible reaction?
    10·2 answers
  • Calculate the poH if 2.95 g of KOH(s) dissolved to make 100mL of solution
    7·1 answer
  • 25.00 gal/min to L/s, Express your answer using four significant figures.
    5·1 answer
  • What is the charge of Cl3 in PCl3​
    8·1 answer
  • Which of the following reactants can oxidize sodium?
    9·1 answer
  • A student prepares a 100.0 mL solution using 44.7 grams of potassium nitrite. They then take 11.9 mL of this solution and dilute
    12·1 answer
  • Which of the solids in the following set should you test to investigate for the effects of ANIONS on pH? Will give brainliest
    14·1 answer
  • Using the ruler, what is the value of A considering significant<br> figures?
    6·1 answer
  • How many electrons does the oxygen atom need to become stable?
    12·2 answers
  • How is energy transferred and transformed
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!