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
Eva8 [605]
3 years ago
6

How can carbon dating be used to study the history of the earth?

Chemistry
1 answer:
grigory [225]3 years ago
7 0
The amount of carbon in fossils and artifacts decreases when the get older, so you can find out how old an object or fossil is by finding out how much carbon is in it.
You might be interested in
What happens when acetylene reacts with silver powder?​
horrorfan [7]
It dissolves I think I know I am expert and. Ute
6 0
3 years ago
15g of magnesium (II) oxide decomposes, find the number of oxygen particles produced at 100% yield.
erastova [34]

2.258625 *10²³ oxygen atoms will be produced.

<h3><u>Explanation:</u></h3>

Decomposition reaction is defined as the type of reaction where one single reactant breaks to produce more than one product only by means of heat or other external factor.

Formula of magnesium oxide = MgO.

The molecular mass of magnesium oxide = 24 +16= 40.

So in 40 grams of magnesium oxide, number of molecules is 6.023 * 10²³.

So in 15 grams of magnesium oxide,, number of molecules is 6.023 *1023 * 15/40 = 2.258625 *10²³.

From one molecule of magnesium oxide, one oxide atom will be produced.

So number of oxide atoms with 100% yeild = 2.258625 *10²³

6 0
3 years ago
Which of the following is not a stage in the development of a thunderstorm? developing stage dissipating stage mature stage updr
mars1129 [50]
The answer is: Mature stage
8 0
3 years ago
Write the ionization equation for hypochlorous acid, HClO, dissolved in water.
Pavel [41]

Answer:

HClO (l)  →  H⁺ (aq)    +       ClO⁻ (aq)

                 proton   and    hypochlorite.

Explanation:

HClO (Hypochlorous acid)

This is a weak acid that can be dissociated as this:

HClO (l)  →  H⁺ (aq)    +       ClO⁻ (aq)

                 proton   and    hypochlorite.

It is a weak acid, so it can adopt a Ka for its equilibrium

HClO +  H₂O  ⇄   H₃O⁺   +  ClO⁻          Ka

Molar mass = 52.46 g/m

5 0
3 years ago
Which of the following are physical characteristics of blood? 1. it is more viscous than water 2. its temperature is about 38ºC
yawa3891 [41]

Explanation:

A property which does not bring any change in chemical composition of a substance is known as physical property.

For example, blood is more viscous than water, its pH is slightly alkaline, its temperature is about 38^{o}C (100.4^{o}F)  .

On the other hand, a property which changes chemical composition of a substance is known as a chemical property.

For example, precipitation, reactivity, toxicity etc are chemical property.

Sometimes, the change in color of a substance can also occur due to a chemical change.

Thus, we can conclude that following are the physical characteristics of blood.

  • it is more viscous than water.
  • its temperature is about 38^{o}C (100.4^{o}F).
  • the pH is slightly alkaline.
  • it is about 8% of one’s total body weight.
6 0
3 years ago
Other questions:
  • How are the properties of organic compounds determined?
    5·1 answer
  • Answer questions 36, 37, and 38 For a “thanks” and more! (Please help me smarties:)
    15·1 answer
  • Which of the following statements correctly describe a photon? Select all that apply.
    10·1 answer
  • a student determined that it requires 106220 j of energy to vaporize 47g of water. is the student is right​
    8·1 answer
  • Which of the following makes up the Earth's hydrosphere?
    14·1 answer
  • Please helppppp!!!
    5·1 answer
  • Yo answer my question
    13·2 answers
  • When dissolved in water all acids will???
    5·2 answers
  • How many nucleons are there in an atom with a nuclear charge of +20 and 23 neutrons?
    12·1 answer
  • Hahsusiaianbaisisii jsusis
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!