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
Mila [183]
3 years ago
11

Which of thses is a mixture A:oxygen B:carbon C:air D:carbon dixoxide

Chemistry
1 answer:
hoa [83]3 years ago
7 0
Carbon dioxide is the answer
You might be interested in
A person slips over banana pills. Give reason​
zhenek [66]

Answer:

We slip when we step on a banana peel because the inner side of banana peel being smooth and slippery reduces the friction between the sole of our shoe and the surface of road.

8 0
3 years ago
When zinc oxide reacts with dilute nitric acid, zinc nitrate is produced. The equation for the reaction is: ZnO + 2HNO₃→ Zn(NO₃)
Lisa [10]

ZnO + 2HNO₃→ Zn(NO₃)₂ + H₂O

mol Zn(NO₃)₂ = mol ZnO = 0.2 (from the coefficient)

mass Zn(NO₃)₂ = 0.2 x 189 = 37.8 g (theorethical yield)

% yield = 15.3 : 37.8 x 100% = 40.48%

6 0
2 years ago
What chemical reaction produces water via synthesis reaction
murzikaleks [220]

Answer:

Synthesis reactions always yield one product.  This is the most well-known example of a synthesis reaction—the formation of water via the combustion of hydrogen gas and oxygen gas.

Explanation:

6 0
4 years ago
Read 2 more answers
If the total pressure of water vapor and hydrogen gas is 1.02 atm and the partial pressure of the water at 22.0 C is 0.13 atm, w
ira [324]

Answer:

0.89 atm  is the pressure of the hydrogen gas

Explanation:

We can use the molar fractions to solve this

Sum of molar fractions (hydrogen + water vapor) = 1

Molar fraction = Pressure gas / Total pressure

Molar fraction water vapor = 0.13 atm/1.02 atm = 0.127

1 - 0.127 = 0.873 (Molar fraction H2)

0.873 = Pressure H2 / Total pressure

0.873 = Pressure H2 / 1.02 atm

0.873 . 1.02atm = 0.89 atm

8 0
4 years ago
What is the name of this hydrocarbon? 2-dimethylyne 2-methylbutane 4-methylbutene 4,3-methylbutyne 4,4-methylbutane
Alisiya [41]
You have shown no structure, still we can work out for the answer :).

First Option: <span>2-dimethylyne: This name is incorrect, because it does not contain any parent chain name. 

Second Option: </span><span>2-methylbutane: I have drawn its structure below, compare it with your structure.

Third Option: </span>4-methylbutene:<span> I have drawn the structure for this name. But this name is also against IUPAC rules, and its correct name is 1-Pentene.

Fourth Option: </span><span>4,3-methylbutyne: Again incorrect name, 4,3 are two positions, but here only one substituent is given (methyl). I have drawn structure of 3,4-Dimethylbutene, this name is incorrect, and the correct name for this compound is 3-Methyl-1-pentene.

Fifth Option: </span><span>4,4-methylbutane: Again incorrect name, 4,4 means at 4 position two substituents, but in name only methyl is given. Anyhow lets make it two and draw a structure, for 4,4-Dimethylbutane. Ooops!! This name is also incorrect, and the correct name for this compound is 2-Methylpentane.

Result:
           Among all options only, option B (2-Methylbutane) is correctly named, and this will be the correct name for the structure given to you. </span>

8 0
3 years ago
Read 2 more answers
Other questions:
  • Anyone know how to do this?
    15·1 answer
  • What is the reaccion when copper (II) carbonate, Cuco3(s), and
    11·1 answer
  • The part of the business cycle in which output, or Real GDP, increases and cyclical unemployment decreases is the _____.
    13·2 answers
  • 5.77 rounded to 1 dig digit
    6·1 answer
  • Fill in the [?]: 12,341 us = [?] S
    6·1 answer
  • Which is an example of sliding friction
    7·1 answer
  • 1.
    15·2 answers
  • A small piece of Cr metal reacts with dilute HNO3 to form H2 (g), which is collected over water at 18 C in a large flask. The to
    12·2 answers
  • What is the formula for the binary ionic compound formed between<br> zinc and nitrogen.
    14·1 answer
  • In the lab, you looked at speed-time graphs to determine the acceleration of the cart for each of the three fan speeds. what was
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!