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
topjm [15]
4 years ago
13

A compound formed from titanium and oxygen has the formula TiO2. Which of the following is true about the ratio of number Ti and

O atoms? 1. The ratio is always 1 atom Ti 1 atom O . 2. The ratio is always 1 atom Ti 2 atoms O. 3. The ratio can vary so long as no element other than Ti and O are present. 4. The ratio is always 2 atoms Ti 1 atom O . 5. The ratio cannot be determined from the information given.
Chemistry
1 answer:
Finger [1]4 years ago
4 0

Answer:

2

Explanation:

There are some basic laws that guide the combination of elements chemically. These are the law of conservation of mass, law of definite proportion, law of multiple proportion and the law of reciprocal proportion.

For this question, the useful law to use is the law of definite proportion. Here, it is stated that no matter the method of preparation or source of preparation, the elements of a chemical compound are always present in a fixed ratio.

What this means that at any point in time, the compound titanium dioxide contains one atom of titanium and two atoms of oxygen. This means that both atoms are present at all times in a proportion of 1 to 2 .

You might be interested in
The voltage for the following cell is +0.731 V. Find Kb for the organic base RNH2. Use EscE 0.241V.
tino4ka555 [31]

Complete Question

The complete question is shown on the first uploaded image  

Answer:

The  value is   K_b  =   1.89 *10^{-6}

Explanation:

From the question we are told that

   The  voltage of the cell is  V  =  0.731 \  V

Generally K_b is mathematically represented as  

           K_b  =  \frac{K_w }{ K_a }

Where  K_w  is the equilibrium constant for this auto-ionization of water with a value  K_w  =  1.0 *10^{-14}

Generally the E_{cell} is mathematically represented as

       E_{cell} =  V  -  E_{SCE}

=>     E_{cell} =  0.731 - 0.241

=>       E_{cell} =   0.49 V

This  E_{cell} is mathematically represented as

             E_{cell} =  \frac{0.0592}{n} *  log K_a

Where n is the number of moles which in this question is  n = 1

         So  

         0.490 =  \frac{0.0592}{1}  *  log K_a

=>      K_a  =  5.30*10^{-9}

So  

     K_b  =  \frac{ K_w}{ K_a}

=>   K_b  =  \frac{1.0 *10^{-14}}{ 5.30*10^{-9}}

=>    K_b  =   1.89 *10^{-6}

5 0
3 years ago
Science always begins with what?
tiny-mole [99]

Step 7- Communicate. Present/share your results. Replicate.

Step 1- Question.

Step 2-Research.

Step 3-Hypothesis.

Step 4-Experiment.

Step 5-Observations.

Step 6-Results/Conclusion.

3 0
3 years ago
WHO KNOWS HOW TO DO THISSS NEED HELP RN PLS<br><br> Li PO4 + AlF →
Alecsey [184]

Explanation:

Your chemical equation should look like this:

Li3PO4 + AlF3 --> 3LiF + AlPO4

This is the balanced equation for a double-displacement reaction

4 0
3 years ago
What are jupiters conditions
Illusion [34]
Jupiter weather phenomena that are similar to those in earth. The lighting storms which have been discovered in jupiter's atmosphere... 

hope it helped :) 
7 0
3 years ago
How long does it take for only one eighth of a sample of radon-222 to remain
Alex17521 [72]
1/8=(1/2)^3 and the half life of radon is 3.8days

Half life is the time it takes for half of any amount of a radioactive substance to decay into something else.

Therefore for a sample of radon to decay to 1/8 of its original amount, it would take 3 x 3.8days=11.4 days
4 0
3 years ago
Other questions:
  • True or False? Another way to control the rate of a reaction is to change the activation energy needed.
    7·1 answer
  • What influences to the path that surface currents take
    10·2 answers
  • Be sure to answer all parts.The equilibrium constant (Kc) for the formation of nitrosyl chloride, an orange-yellow compound, fro
    7·1 answer
  • If a polypeptide synthesized by a ribosome contains 99 amino acids in the chain, how many codons (including the start and stop c
    5·1 answer
  • What is the voltage in a circuit with a resistance of 100 and a current of 0.04?
    13·1 answer
  • Every organism requires a set of instructions that specifies its traits. Which statement best describes the hereditary informati
    9·1 answer
  • At their centers, all the jovian planets have cores made of:
    12·1 answer
  • What is the volume of 120mg of water
    10·1 answer
  • HELP 80 points
    15·1 answer
  • Which of the following is not a fossil fuel?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!