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
Ede4ka [16]
2 years ago
7

carbon-dating was performed on an artefact that was found to have 25% of the original carbon-14 remaining in it

Chemistry
1 answer:
Dafna1 [17]2 years ago
8 0
Im doing carbon-dating too its so hard for what btw whats the wuestion? I can help ya
You might be interested in
Which term is same for one mole of oxygen gas and one mole of water
miv72 [106K]
The number of atoms in one mole is same in both which is 6 x 10^23 ^23 means power 23
6 0
2 years ago
Can some one help whith these
MA_775_DIABLO [31]

Answer:

what is this pdf I cannot see your question

5 0
3 years ago
Read 2 more answers
A student is studying the rate of the following reaction: C2H4O NaOH --> H20 NaC2H3O Knowing that this is an exothermic react
emmasim [6.3K]

Answer:

HCl is not a catalyst because these are not used up during the chemical reactions.

Explanation:

Hello there!

In this case, according to the performed experiments, it is possible for us to realize that HCl cannot be a catalyst for this reaction because it is used up during the reaction. This is explained by the fact that catalyst are able to return to the original form once the reaction has gone to completion; this is the example of palladium in the hydrogenation or dehydrogenation of hydrocarbons depending on the case. Moreover, we know that the catalysts increase the reaction rate because they decrease the activation energy of the reaction and therefore the student observed such increase.

Best regards!

8 0
2 years ago
The half life of a radioactive element is 2 million years. a mass of rock originally contained 200g of this element. how many gr
julia-pushkina [17]
Every 2 million years the amount is halved
0 million = 200g
2 million = 200g/2 = 100g
4 million = 100g/2 = 50g
8 0
3 years ago
What is the Scientific<br> Method?
Doss [256]

Answer:

I just finished a unit on Scientific Method in my science class! Anyway, it's defined in the screenshots below. Hope this helps!

8 0
3 years ago
Other questions:
  • Which shows the formula for an Organic acid
    14·1 answer
  • Why is it safer to live in the middle of a plate instead of near a plate boundary?
    12·1 answer
  • Which element in the third period would you expect to have the larger atomic radius, sodium (Na) or Sulfur (S)?
    11·2 answers
  • Question 4
    6·1 answer
  • I NEED HELP ASAP!!!!!!<br> Which energy profile best shows that the delta Hf of H2S is -20.6 kJ/mol?
    6·1 answer
  • What is energy conversion​
    14·1 answer
  • Please tell me witch one goes with what. It can be continental drift or plate tectonics. please tell me if you need help
    15·2 answers
  • True or False When one side of a molecule is electronegative (δ-) and the other side of the
    5·1 answer
  • As you decreased the volume of the chamber, what effect did this change have on the frequency of collisions between
    14·1 answer
  • Is alka seltzer and acid or a base or netural
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!