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
tensa zangetsu [6.8K]
3 years ago
15

A sample of wood that originally contained 100 grams of carbon-14 now contains only 25 grams of carbon-14. approximately how man

y years ago was this sample part of a living tree?
Chemistry
1 answer:
BARSIC [14]3 years ago
6 0
In order for 100 grams of Carbon 14 to decay to 25 grams, 2 half lives worth of time would have passed. 

<span>log(100/25) / log(2) = 2 half lives </span>

<span>2 * 5730 years = 11,460 years</span>
You might be interested in
Which option is an example of a chemical property?
Alona [7]
Answer:
The ability to decompose
Explanation:
A property is a chemical property when it changes the chemical structure of a substance after a reaction.
Density and color are both physical properties.
Even though melting point may seem like a chemical property, when something melts, only the physical state changes, and the chemical structure does not change, and therefore, is a physical property.
The ability to decompose is a chemical property. When something decomposes, the chemical structure of many molecules change, and therefore, is classified as a chemical property.
8 0
3 years ago
Read 2 more answers
How many coppers of each atom in the products
yarga [219]

Answer:

Explanation:

moler mass of Cu is 63.546 g/mol. Since 63.546 g of copper has 6.022 x 10 power(23) atoms (Avogadro's number). = 9.5 x 10(power)21 atoms of copper.

6 0
2 years ago
¿Cuáles son las características de los materiales de laboratorio? Por ejemplo: exactitud, resistencia a la temperatura, etc.
boyakko [2]

Answer:

lo siento, no sé punto libre. :p

7 0
2 years ago
Calculate the number of ATPs generated by the complete metabolic oxidation of tripalmitin (tripalmitoylglycerol). Hydrolysis of
trapecia [35]

Answer:

Explanation:

412 ATP's will be generated from the complete metabolic oxidation of tripalmitin (tripalmitoylglycerol)

130 ATP from the oxidation of palmitate

22 ATP from the oxidation of glycerol

Altogether 130 + 22 = 412 ATP will be produced.

Here in case of tripalmitin (tripalmitoylglycerol), we have 51 carbons.

When 51 carbons can produce 412 ATPs

Then 1 carbon will produce how many ATPs = 412 ATPs/ 51 carbon= 8.1 ATPs.

This shows that ATP yield per carbon often oxidized will be 8.1 ATPs

Now we will see the ATP yield in the case of glucose.

Glucose is made up of 6 carbon and complete oxidation of glucose will produce 38 ATPs

When 6 carbons can yield 38 ATPs

Then 1 carbon can yield how many ATPs= 38 ATPs/ 6 carbons= 6.33 ATPs.

So, ATP yield per carbon in case of glucose will be 6.33 ATPs

8 0
3 years ago
Help now im not trying to fail
Alekssandra [29.7K]

Answer:

i cant see the whats in the picture

5 0
2 years ago
Read 2 more answers
Other questions:
  • Why were iron tools more difficult to obtain than copper ones?
    15·1 answer
  • A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 84 g of water (with an
    12·1 answer
  • Which of the following describes a difference between galaxies and solar systems? A. Galaxies contain only moons, while solar sy
    13·2 answers
  • Does anyone know where i can find a practice cumulative chem test online?
    13·1 answer
  • Help please
    15·2 answers
  • Consider this equilibrium: COCl2(g) CO(g) + Cl2(g) Keq = 8.1 x 10-4. What is true for this system? [COCl2] &lt; [CO][Cl2] [COCl2
    6·2 answers
  • Most of the elements to the left of the stair-step line in the periodic table exist as _________ in the periodic table.
    6·1 answer
  • In a neutral atom, the number of protons is always equal to what other part of the atom?
    11·1 answer
  • What is the maximum number of electrons that can be identified with each of following sets of quantum numbers? If there are none
    5·1 answer
  • Perform the following calculation and report the answer with the correct number of significant figures.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!