All categories

3 years ago

How does carbon 14 work

1 answer:

6 0

Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old. It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.

You might be interested in

Where in a data table should units of measurement be shown?

Vikentia [17]

The unites of measurement in a data table should be shown in the headings of some columns.

6 0

3 years ago

Read 2 more answers

How many moles are in 5.5 x 10-23 molecules of H2O

masha68 [24]

Answer:

0.914moles

Explanation:

The number of moles in a substance can be got by dividing the number of atoms/molecules/particles by Avagadro's constant (6.02 × 10^23).

That is;

number of moles (n) = number of atom (nA) ÷ 6.02 × 10^23

According to this question, there are 5.5 x 10-23 molecules of H2O

n = 5.5 x 10^23 ÷ 6.02 × 10^23

n = 0.914 × 10^(23-23)

n = 0.914 × 10^0

n = 0.914 × 1

n = 0.914moles

6 0

2 years ago

How many grams of C6H12O6 are needed to be dissolved in water to make 100. grams of a 250. ppm solution?

Vesna [10]

Answer:

0.025 g C6H12O6

Explanation:

ppm = (g solute/ g solution)* 10^6

g solute= (ppm * g solution)/ 10^6

g solute = (250 ppm * 100 g)/10^6

g solute=0.025 g C6H12O6

4 0

3 years ago

3. (10 Points) You buy a helium balloon of 14 Liters for your friend's birthday and

vesna_86 [32]

Answer: picture shows work for # 1,2,4,5,7

Explanation:

number 3: as the pressure in the volume decreases, the volume increases causing it to expand and eventually blow.

number 6: because the temperature and the amount of gas don’t change, these terms don’t appear in the equation. What Boyle’s law means is that the volume of a mass of gas is inversely proportional to its pressure. This linear relationship between pressure and volume means doubling the volume of a given mass of gas decreases its pressure by half.

hope this helps :))

7 0

2 years ago

If 2.00 g of Zn is allowed to react with 2.00 g of CuSO4, how many grams of

otez555 [7]

Answer:

Explanation:

8 0

2 years ago

Read 2 more answers