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
Veronika [31]
2 years ago
11

Two students made a model of the world's tallest building, the Burj Khalifa in Dubai. The scale of the model is 1:400. The stude

nts' model has a height of 2.07 m. How tall is the real building? O A. 0.005 m O B. 400 m O C. 193 m O D. 828 m ​
Chemistry
1 answer:
Anna [14]2 years ago
4 0

Answer:D

Explanation:

828m

You might be interested in
I NEED HELP!!
solmaris [256]
A simple sugars are formed

5 0
3 years ago
Read 2 more answers
Tetrabromoethane with zinc​
Fantom [35]

The answer of the the reaction between tetrabromoethane and zinc is the image below. Acetylene and two zinc bromide are formed

7 0
3 years ago
How will each of the following affect the rate of the reaction, CO(g) + NO2(g) → CO2(g) + NO(g), if the rate law for the reactio
andre [41]

Answer:

Rate will increase by 3 times

Explanation:

According to the law of mass action:-

The rate of the reaction is directly proportional to the active concentration of the reactant which each are raised to the experimentally determined coefficients which are known as orders. The rate is determined by the slowest step in the reaction mechanics.

Order of in the mass action law is the coefficient which is raised to the active concentration of the reactants. It is experimentally determined and can be zero, positive negative or fractional.

The order of the whole reaction is the sum of the order of each reactant which is raised to its power in the rate law.

Given that:- Rate law = k[NO_2][CO]

Thus, if the pressure is increased from 0.2 atm to 0.6 atm, means 3 times, rate will also increases 3 times.

8 0
3 years ago
The sentence, "He won't never go to practice," is an example of what error?
N76 [4]
This sentence is an example of double negative.
won't and never are two negative words, used in one sentence describing 1 thing.
7 0
3 years ago
For the balanced equation shown below, if 84.7 grams of H2S were reacted with 78.4 grams of O2, how many grams of H2O would be p
Klio2033 [76]
The mass  of  water  is  calculated  as   follows

  find  the  moles  of   each  reagent

that   is   moles =   mass/molar  mass

for  H2s  =  84.7/   34=   2.485  moles
      O2  =  78.4  /   32  =  2.45  moles

since    2  moles  of  H2S  react   with  3  moles  of O2  therefore  2.45  moles   of  oxygen  will  be  used  up  therefore  O2  is  the    limiting   reagent   and  H2S  is  in  excess

2H2S  +  3O2  ----->2So2   +  2H2O

by  use  of   mole   ratio  between  O2  and   H20   which  is  3:2  the   moles of  H2O  is  therefore  =  2.45 x2/3= 1.63  moles  of H2O

mass  of H2O  =  moles   x  molar  mass

=  1.63  g  x  18g/mol  =  29.4   g
4 0
3 years ago
Other questions:
  • Help! Which of these is a compound?:<br>Carbon, chlorine, uranium, ammonia.
    8·1 answer
  • Answer the following questions based on the reaction below: NaOH(aq) + KHP(s) --&gt; NaKP(aq)+H2O(I)
    10·1 answer
  • Which salt is produced when sulfuric acid and calcium hydroxide react completely?
    15·2 answers
  • Write the IUPAC name for the compound that reacts with vegetable oil to produce biodiesel
    6·1 answer
  • A galvanic cell consists of a ni2+/ ni half-cell and a standard hydrogen electrode. if the ni2+/ ni half-cell standard cell func
    9·1 answer
  • Which has a larger electronegativity O or F?
    8·1 answer
  • For an atom’s electrons, how many energy sublevels are present in the principal energy level n = 4?
    15·2 answers
  • Find the maximum mass of MgO that can be made from 2.4 of Mg and 2.4 of O2
    8·1 answer
  • Acidic solutions have pH value less than 7 . Select one : O True O False​
    13·2 answers
  • How does latitude affect climate?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!