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
o-na [289]
3 years ago
15

Which statement best describes a physical change?

Chemistry
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

The answer is c

You might be interested in
What is the bronsred base of NO2- +H2O HNO2 +OH-
kramer
Bronsted lowry bases

NO2- amd OH-
4 0
4 years ago
A solution of pH 5 is diluted 100 times. Find the pH of the resulting solution.
liq [111]
First, we calculate of the concentration of the H+ ions in the solution from the pH given. Then, calculate the new concentration after dilution. Calculation are as follows:

pH = -log[H+]
5 = -log[H+]
[H+] = 1 x 10^-5 M

M1V1 = M2V2
<span>1 x 10^-5 M (V1) = M2(100V1)
</span>M2 = 1 x 10^-7

pH =  -log[<span>1 x 10^-7</span>]
pH = 7

3 0
3 years ago
Read 2 more answers
True or False. Isotopes have different chemical properties. Explain why?
Maurinko [17]

Answer:

False

Explanation: isotopes generally have the same physical and chemical properties because they have the same numbers of protons and electrons.

4 0
3 years ago
Do you think that participation in a Supervised Agriculture Experience (SAE) prepares a student for a career in the AFN industry
irinina [24]

Answer:

The SAE curriculum includes practical farming tasks conducted outside the scheduled classroom and laboratory period by students. SAEs offer a method for students in agricultural education to gain real-world work opportunities that they are most interested in in the field of agriculture. Supervised agricultural experience is an essential component of agricultural education, and all Agriculture, Food and Natural Resources (AFNR) courses are a necessary component.

Explanation: Hope it helps

6 0
3 years ago
How many grams of water (H2O) are produced from 34 grams of oxygen (O2)? *
Dennis_Churaev [7]

Answer:

Explanation:

complete combustion reaction of  ethane is given by the reaction

2C2H6+7O2..............4CO2+6H2O

no of moles in 34 grams of O2=34/32=1.063

7mole of O2 produced 6 moles of H2O

therefore 1.063 moles of O2 produced=1.063*6/7=0.9 moles

now 0.9 moles of H2O contain how much grams=0.9*18=16.2 grams

3 0
3 years ago
Other questions:
  • What is the main factor in the net driving force for filtration in the glomerulus?
    12·2 answers
  • Which of the following statements about line graphs is true?
    15·2 answers
  • Which of the following is a method used by atoms to form a chemical bond? Merging electrons Merging protons Sharing electrons Sh
    10·2 answers
  • Does anyone understand this?
    7·1 answer
  • What concentration of nh4no3 is required to make [oh− ] = 1.0 × 10−5 in a 0.200-m solution of nh3?
    6·2 answers
  • To form an oxygen molecule o2 two oxygen atoms share two pairs of electrons what kind of bond is shown below by the electron dot
    5·2 answers
  • Calculate the pH for each case in the titration of 50.0 mL of 0.110 M HClO ( aq ) with 0.110 M KOH ( aq ) . Use the ionization c
    11·1 answer
  • Acetonitrile (CH3CN) is an important industrial chemical. Among other things, it is used to make plastic moldings, which have mu
    13·1 answer
  • Wwwwwwwwwwwwwwwwwwwwwwwwwwwww
    12·1 answer
  • How does the availibilty of water in various states affect weather ptterns
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!