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
MaRussiya [10]
3 years ago
13

Please help me with some extra details please

Chemistry
1 answer:
mojhsa [17]3 years ago
6 0

Answer:

Empirical Formula: Al_2O_3

Explanation:

Since total mass is 306, we have:

Mass of $Al = \frac{52.9}{100}\times 306=161.87 $

Mass of $O= \frac{47.1}{100}\times 306=144.126$

Hence,

Moles of $Al=\frac{Mass}{molar mass}=\frac{161.87}{27}=6$

Moles of $O= \frac{Mass}{molar mass}=\frac{144.126}{16}=9$

Hence the formula is $Al_6O_9$ , or, $Al_2O_3$

You might be interested in
A) Compare the masses of the three cylinders. (1 point)
Reika [66]

Answer:

the answer would be ;B compare the volumes of the three cylinders

3 0
3 years ago
I need helppppppppppp
agasfer [191]

Answer:

option c hope it will help u

8 0
3 years ago
Read 2 more answers
Food travels directly from the stomach to the
OleMash [197]
From the stomach, the food travels to the small intestine. This happens with the help of a movement known as peristalsis. Juices are released in the small intestine, which helps in the breakdown of carbohydrates, starch, and proteins. 
3 0
3 years ago
The addition of phosphate to a chemical compound is called A. glycolysis. B. oxidation. C. reduction. D. phosphorylation.
stich3 [128]

Answer:

Option (D)

Explanation:

Phosphorylation can be simply defined as the addition of a phosphate group to an organic and inorganic molecule. This process helps in regulating the processes that occur in the cells. It leads to the growth and development of cells and this process is efficiently carried out with the help of enzymes like kinase. It also plays an important role in transferring the signals within the cells, synthesis, and functioning of proteins within the cells, and storing as well as releasing of energy.

Thus, the correct answer is option (D).

5 0
3 years ago
Explain what environmental bias means. What are the categories that
rewona [7]

Answer: Environmental bias can be defined as the idea that suggests a group of people being living in the environment which is harmful for them.

Explanation:

There are three categories that make up the environmental bias there are socio-cultural choice, occupational choice, and personal choice.

The environmental bias can be related to chemistry as chemical lab is an area prone to chemical (acid, alkali) and fire so produced in reactions thus prone to accidental hazards not safe for working of people. But people like to work in chemical lab due to their personal and occupational choice.

5 0
3 years ago
Other questions:
  • Formula needed for Pb2+Cl-
    13·1 answer
  • The following Lewis diagram represents the valence electron configuration of a main-group element. This element is in group 2A A
    13·1 answer
  • Sex cells from female reproductive organ?
    7·2 answers
  • Round the following to three significant figures. a 17.5555 km 16 b. 1.0007 c.23.34271d. 99.991
    8·1 answer
  • What is the easiest way to find the charge of an element using the periodic table?!?
    13·1 answer
  • How many atoms are present in 23.0 g of carbon?
    9·2 answers
  • State a hypothesis based on the following:
    12·1 answer
  • Pls help what the ratio ?.<br>enter your answer as an integer ​
    7·1 answer
  • CaCO3 (s) + 2HCl (aq) → CaCl2 (aq) + CO2 (g) + H20 (1)
    6·1 answer
  • Give some tips on how to take care of your microscope.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!