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
Juliette [100K]
3 years ago
13

Identify the index fossil

Chemistry
1 answer:
Zina [86]3 years ago
5 0
It’s outcrop 3 and it’s the shark tooth because teeth help date fossils the best
You might be interested in
I need a tutor. Anyone who could be my tutor please message me. I am in 6th grade and rarely have trouble but when I do I would
Aleksandr-060686 [28]
I'd love to be. I have 4 younger siblings and am always helping them! Lol
4 0
3 years ago
Read 2 more answers
In the following reaction, how many liters of oxygen will react with 270 liters of ethene (C2H4) at STP?
lawyer [7]
According to the equation you have 1 mole of C2H4 and 3 moles of O2.

1 • (22.4L / 270L) = 3 • (22.4L / x)

1/270L = 3/x

x = 3(270) / 1

x = 810 L

810 Liters of oxygen will react with 270 liters of ethene (C2H4) at STP
4 0
2 years ago
How can you increase the boiling point of water?
pshichka [43]

Answer:

Explanation:

Adding any solute to water will increase the boiling temperature, as it reduces the vapour pressure, meaning a slightly higher temperature is required in order for the vapour pressure to become equal to atmospheric pressure and boil the water. Essentially, adding any non-volatile solute (such as salt, baking soda or sugar) to a liquid causes a decrease in the liquid's vapour pressure.

7 0
3 years ago
Which one is it ????
lianna [129]
Cells can generate from non living matter is the answer
3 0
3 years ago
Which substance loses electrons in a chemical reaction? the one that is oxidized, which is the oxidizing agent the one that is r
victus00 [196]

Answer:

The one that is oxidized or the reducing agent

Explanation:

Oxidation results in loss of electrons or an increase in oxidation state.

Reduction results in gain of electrons or  decrease in oxidation state.

The element that undergoes oxidation is said to oxidised, similarly the element that undergoes reduction is said to be reduced.

In a redox reaction, both oxidation and reduction takes place.

If a substrate undergoes oxidation or is oxidised, it is also responsible for reduction of the other species, as the total number of electrons should always be conserved.

The substance that undergoes oxidation, releases some electrons, these electrons are taken by the other substrate and it undergoes reduction.

Hence the substance that undergoes oxidation is called the reducing agent, as it is responsible for reduction of other substrate, when oxidizing itself.

Similar thought works for a substance that undergoes reduction or is reduced, works as an oxidizing agent.

7 0
3 years ago
Read 2 more answers
Other questions:
  • To your unknown you add HCl to precipitate the Group A ions (Ag and Hg). This precipitate is removed and NH3 is added to it to r
    10·1 answer
  • Which of the following is the best definition of nodes?
    5·2 answers
  • General or nonspecific observation is
    6·1 answer
  • What happens when water is added to sodium bicarbonate
    14·1 answer
  • A solution is prepared at 25 °C that is initially 0.23 M in propanoic acid, a weak acid with K, = 1.3 x 10^-5, and 0.42 M in sod
    6·1 answer
  • How many 3d electrons are in an atom of each element? fe express your answer as an integer?
    13·1 answer
  • NEED HELP ASAP !!!!!!!!!!!!
    7·1 answer
  • Potassium chloride will dissolve in water but not in oil. Why?
    14·1 answer
  • Calculate the amount of energy produced by the conversion of 50.0 kg of mass into energy. Use 3.00 x 108 m/s for the speed of li
    5·2 answers
  • 11. Write down the molecular formula of following compounds by
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!