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
Elan Coil [88]
4 years ago
11

What is the percent by mass of oxygen in al2o3 ?

Chemistry
1 answer:
Snezhnost [94]4 years ago
4 0
mr oxygen= 16. 16 x 3= 48
mr Al2O3= 27 + 27 + 48= 102

(48/102) X 100%= 47.05% oxygen
You might be interested in
The diagram below shows three types of earthquake waves, labeled A, B, and C at different time intervals.
77julia77 [94]
The diagram below shows three types of earthquake waves, labeled A, B, and C at different time intervals. The statement that is correct about the three waves is <span>Wave A and Wave B are absorbed by liquid medium. The answer is letter B.</span>
5 0
3 years ago
Read 2 more answers
Static charges can be applied to neutral objects by friction, induction or conduction. What do all of these methods utilize to c
MatroZZZ [7]
Electrons are valence and free moving so they take place in charge transfer
5 0
3 years ago
What is included in a compaarative investigation
Minchanka [31]

a scientific question

6 0
3 years ago
A flask with a volume of 250.0 mL contains air with a density of 1.164 g/L. What is the mass of the air contained in the flask?
satela [25.4K]

Answer:

convert 250.0 mL in Liters :250. 0 / 1000 = 0,25 LDensity = 1.240 g/LMass

Explanation:

6 0
2 years ago
What is the attraction between molecules within a substance called? adhesion capillary action cohesion polarity.
cestrela7 [59]

Answer:

cohesion

Explanation:

just got it right

5 0
2 years ago
Read 2 more answers
Other questions:
  • The atomic mass of an element is equal to the number of:
    14·2 answers
  • If you dissolve 3.5 moles of cacl2 in solution how many moles of ca2+ ions and cl- ions will there be in the solution
    12·1 answer
  • What three conditions aid in the decomposition of dead organisms?
    5·1 answer
  • When 14.8 g KOH is dissolved in 85.6 g of water in a coffee-cup calorimeter, the temperature rises from 19.3 °C to 32.76 °C. Wha
    8·1 answer
  • 4 mol of water is made up of 2.408×10^24 molecules of water.
    7·1 answer
  • What is the definition of bond length?
    12·1 answer
  • Some common substances and their chemical formulas are listed in the chart.
    13·1 answer
  • Someone please help me answer this.
    15·1 answer
  • How many zeroes are significant in the measurement 0.0400200?
    7·2 answers
  • Potential Energy vs Height
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!