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
lys-0071 [83]
3 years ago
12

What is the element Cr2O5 name? It is on my college study guide and I am really struggling, please help.

Chemistry
1 answer:
fgiga [73]3 years ago
3 0
Chromium oxide (Cr2O5) More... Molecular Weight. 151.99 g/mol. Component Compounds.
You might be interested in
What volume does 2.25g of nitrogen gas, N2, occupy at 273 Celsius and 1.02 atm​
kotykmax [81]
<h2><u>Answer:</u></h2>

0.126 Liters

<h2><u>Explanation:</u></h2>

V = mRT / mmP

First, convert the 2.25g of Nitrogen gas into moles. (m in the equation above)

2.25g x 1 mole / 28.0g = 0.08036 moles = m

28.0g = mm

Next, convert the 273 Celsius into Kelvin. (T in the equation above)

273 Celsius + 273.15 = 546.15K = T

R = 0.08206L*atm/mol*K

(Quick Note: The R changes depending on the Pressure Unit so do not use this number every time.)

Now, plug everything into the equation.

V = (0.08036)(0.08206)(546.15)/(28.0)(1.02)

V = 0.126 L

5 0
3 years ago
POINTS!!!!
Setler79 [48]
C) 3 Moles
This is because of the molecular structure shown in the image

5 0
3 years ago
The indicator methyl red has different molecular structures at high and low pH.
Novosadov [1.4K]

Answer:

a. True

Explanation:

Methyl red is an indicator widely used in quality control of oxides as Zinc oxide in the titration with sulfuric acid.

As is used in titrations of acid-base reactions the indicator change in colour. Is red when the pH < 4.4 (Acidic Solutions) and is yellow when pH > 6.2 (Neutral-Basic solutions).

A change in colour means the structure of the indicator is changing with pH. Thus, the answer is:

<h3>a. True </h3>

6 0
3 years ago
Is one mole of zinc the same as one atom of zinc?
Papessa [141]

Answer: No.

Explanation: One mole of zinc is not the same as one atom of zinc. In one mole of zinc, there are approximately 6.022*10^23 atoms of zinc.

3 0
3 years ago
Which of the following is a nonrenewable energy source? A. coal B. solar C. wind D. hydropower E. burning biomass
VARVARA [1.3K]
The best answer among the following choices would be A) since the other options are NOT nonrenewable energy sources.
5 0
3 years ago
Other questions:
  • Which option is an example of a chemical property? Question options: reactivity color melting point density
    15·2 answers
  • Of the following which is the most concentrated solution
    10·2 answers
  • • What is an ion, and what makes a compound "ionic"?
    14·1 answer
  • When swimming the 5000 meter freestyle race, a swimmer travels at a steady pace of 68 seconds for each lap. Each lap of the pool
    13·1 answer
  • Every year 5.5 billion tons of carbon is released through burning fossil fuels . Compare this to the weight of adult African ele
    10·1 answer
  • What is the numerical value of KcKc for the reaction if the concentrations at equilibrium are 0.10 MM SO2SO2, 0.18 MM O2O2, and
    10·1 answer
  • Phenomenon: The sound of tapping on your desk is much louder and lower pitched when you listen to it with your ear pressed again
    5·1 answer
  • The Aufbau Principle describes that
    11·1 answer
  • When the Kelvin temperature of an enclosed gas doubles, the particles of the gas
    9·1 answer
  • If there is 3% freshwater available on earth, approximately what percentage of it is in ice?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!