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
Marysya12 [62]
2 years ago
5

In which of the following compounds is the mass ratio of chromium to oxygen closest to 1.62 to 1.00?

Chemistry
1 answer:
ohaa [14]2 years ago
8 0

Answer:

The answer to your question is letter A

Explanation:

Data

Mass ratio 1.62 to 1.00

Atomic mass Cr = 52 g

Atomic mass O  = 16

Process

1.- Calculate the proportion Chromium to Oxygen to each possible solutions

a) CrO₃   =   \frac{52}{16 x 3} = \frac{52}{48} = 1.08

b) CrO₂   =   \frac{52}{16 x 2} = \frac{52}{32} = 1.63

c) CrO     = \frac{52}{16} = 3.25

d) Cr₂O   =  \frac{52 x 2}{16} = \frac{104}{16} = 6.5  

You might be interested in
Question 7 of 10
nirvana33 [79]

Answer:

I think the answer is D. Temperature affects only the rate of reaction.

7 0
3 years ago
If 2.0 mol of Zn is mixed with 3.0 mol<br> of HCl, which reactant will be limiting?
Soloha48 [4]

The following Balanced Reaction will take place:

Zn + 2HCl → ZnCl₂ + H₂

In the question, we have 2 moles of Zinc and 3 moles of HCl for this reaction

<u>Amount of HCl required to completely react with 2 moles of Zn:</u>

Since we need 2 moles of HCl for every mole of Zn, we will need 2(2) = 4 moles of HCl for every 2 moles of Zn

<u>Identifying the Limiting Reagent:</u>

But we are only given 3 moles of HCl where we need 4 moles to completely react.

So, since HCl is in less amount, it is the Limiting Reagent

8 0
2 years ago
Some one please help me ​
Norma-Jean [14]

Answer:

C.4

Explanation:

6 0
3 years ago
John is outstanding forward on his club select soccer team. He is know for his ball control and speed. After a game he often mak
natima [27]

Answer:

This self evaluation helps them to better his sport.

Explanation:

This is the right way to evaluate the performance of John because this sketch shows him the way he perform in the match. Due to this sketch he can better his performance and remove all the mistakes he had done in the match which results in better performance of John in the next match. This self evaluation helps them to better his sport and got new chances in order to select for a better club or national soccer team.

4 0
3 years ago
If you measure the mass of a liquid is 11.50 g and its volume as 9.03 ml how many significant figures should its density value h
MAXImum [283]

To get a result with the best degree of precision, the number of significant figures should be equal to the smallest number of significant figures of the given numbers. In this case, the smallest is 3 as given by the number 9.03 mL.

Therefore density is:

<span>11.50 g / 9.03 mL = 1.27 g/mL</span>

3 0
3 years ago
Read 2 more answers
Other questions:
  • BRAINLIEST TO FIRST CORRECT ANSWER! :)
    11·1 answer
  • According to Dalton's atomic theory, which statement is true about atoms of the same element? They can be destroyed. They have i
    8·2 answers
  • Mengapakah gelung pemanas di dalam cerek elektrik berada di dasar cerek?​
    12·1 answer
  • What is the name of this formula
    15·1 answer
  • Which of the following is a mixture steel water oxygen or gold
    9·1 answer
  • Please help this is due soon
    10·2 answers
  • HELPPPPPP<br>Calculate the frequency of light with a wavelength 559nm​
    12·1 answer
  • M[oknjjom[pmnj <br> word to my mother y'all look
    12·1 answer
  • What is the change in the freezing point of water when 35.0 g of sucrose is
    11·1 answer
  • Receiving an electrical shock when you forget to turn off the power before working on an electrical socket is an example of a ne
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!