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
zheka24 [161]
4 years ago
5

Explain the difference between an element and a compound.

Chemistry
1 answer:
Marysya12 [62]4 years ago
3 0

Answer:

A compound has atoms with different elements chemically combined in a completed ratio. An element is a chemical substance made of another type of atom.

You might be interested in
Please help appreciate it!!
zysi [14]

Explanation:

Ionization reactions are reactions that involve an electrically neutral atom or molecule be converted into electrically charged atom or molecule (ions).

Ions are recognized by the (⁺) and (⁻) signs.

First Reaction: Ions are formed so this option is correct.

Second Reaction: Ions are formed so this option is correct.

Third Reaction: This option is wrong. No ions are formed.

Fourth Reaction: Ions are formed so this option is correct.

Fifth Reaction: Ions are formed so this option is correct.

8 0
3 years ago
In the following reaction 8 grams of ethane are burned and 11 grams of CO2 are collected. What is the percent yield? 2C2H6+7O2=
Alika [10]
47% yield.  
First, let's determine how many moles of ethane was used and how many moles of CO2 produced. Start with the respective atomic weights. 
Atomic weight carbon = 12.0107 
Atomic weight hydrogen = 1.00794 
Atomic weight oxygen = 15.999  
Molar mass C2H6 = 2 * 12.0107 + 6 * 1.00794 = 30.06904 g/mol 
Molar mass CO2 = 12.0107 + 2 * 15.999 = 44.0087 g/mol  
Moles C2H6 = 8 g / 30.06904 g/mol = 0.266054387 mol 
Moles CO2 = 11 g / 44.0087 g/mol = 0.249950578 mol  
Looking at the balanced equation, for every 2 moles of C2H6 consumed, 4 moles of CO2 should be produced. So at 100% yield, we should have 0.266054387 / 2 * 4 = 0.532108774 moles of CO2. But we only have 0.249950578 moles, or 0.249950578 / 0.532108774 = 0.46973587 =
46.973587% of what was expected.  
Rounding to 2 significant figures gives 47% yield.
8 0
4 years ago
How would poisoning proton pumps impact anion uptake? see section 36.3 ( page 755) ?
boyakko [2]
The answer to this question would be: the anion uptake will be decreased

If proton pump function is decreased, that means the amount of proton that goes outside the cell will be decreased. It will cause the anion uptake decreased too because some anion needs to go inside cells by co transporting with the proton.
7 0
4 years ago
Below are 5 sets of potential solutes for you to compare. Both members of each pair are very soluble in water. If you had equal
miss Akunina [59]

Answer:

CaCl2, Li2S, AlCl3, AlCl3, K2S

Explanation:

When figuring out which is a better conductor of electricity you want to look at which has the largest yield of dissociated ions.

6 0
4 years ago
A scientist is at the hospital visiting a friend's young daughter, who has been
slava [35]

Answer:

D

Explanation:

The scientist identifies the need to make a drug to cure the respiratory illnesses.

5 0
4 years ago
Other questions:
  • Please help me get the rest. I am terrible at these. ​
    14·1 answer
  • Consider this row in the periodic table of elements. As we move from left to right, across the row, the elements ... A) change f
    7·2 answers
  • What conclusions can you draw about the relationship between chemical structure and dye color?
    8·1 answer
  • Drag each title to the correct location identify each process as carbon source or carbon sink
    13·1 answer
  • Which gas has approximately the same density as c2h6 at stp no nh3 h20 so2?
    13·1 answer
  • A polymer sample combines five different molecular-weight fractions, each of equal weight. The molecular weights of these fracti
    11·2 answers
  • Which of these is an indication that a chemical reaction has occurred?
    13·2 answers
  • Draw a mechanism for the reaction of methanol with sodium amide. Draw any necessary curved arrows. Show the products of the reac
    13·1 answer
  • A gaseous mixture contains 5.0 moles of nitrogen and 10.0 moles of helium . What is the total pressure if the temperature is 25
    13·1 answer
  • What is the difference between heterochromatin and euchromatin.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!