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
Calculate the equilibrium constant K for the following reaction: H2(g) +
SIZIF [17.4K]

Answer:

192.9

Explanation:

From the question,

Ke = [HCL]²/[H₂][CL₂].......................... Equation 1

Where Ke = Equilibrium constant.

Given: [HCL] = 0.0625 M, [H₂] = 0.0045 M, [CL₂] = 0.0045 M

Substitute these values into equation 1

Ke = (0.0625)²/(0.0045)(0.0045)

ke = (3.90625×10⁻³)/(2.025×10⁻⁵)

ke = 1.929×10²

ke = 192.9

Hence the equilibrium constant of the system = 192.9

5 0
3 years ago
MgX2 Very low density Highly reactive Diatomic Using the periodic table, determine which element these characteristics MOST LIKE
photoshop1234 [79]
Oxygen, fluorine and iodine are diatomic elements. Flourine is more reactive than the other two because it is the closest away to filling its outer layer of electrons and becoming stable like a noble gas.
3 0
3 years ago
Read 2 more answers
Solid carbon (C) can burn in oxygen (O2). Select
babunello [35]

Answer:

OCO

Another way of writing CO₂

Explanation:

A reaction equation has <u>reactants on the left</u> and <u>products on the right</u>.

The reactants are carbon and oxygen. The product is carbon dioxide.

C + O₂ → CO₂

You might see the equation both ways.

C + O₂ → OCO

C + O₂ in the products would mean no reaction has occurred. The problem can <u>solid carbon can burn in oxygen</u>, so a reaction will occur. For no reaction, you would put "NR" in the products.

<u>OCO is the structural way of writing CO₂.</u> Both have one carbon atom (C) and two oxygen atoms (O).

C + 2O is not possible. Oxygen, if alone, has to be at least O₂ because it's a <u>diatomic molecule</u>.

3 0
3 years ago
the radius of magnesium atom is 0.160nm. the radius of a magnesium ion is 7.2x 10^-11m. explain the difference in size between t
Allushta [10]

Answer:

during reaction magnesium lises ions.

Explanation:

magnesium reacts by losing two ions which makes it smaller in size.

8 0
3 years ago
PLS HELP NO LINKS PLS
nlexa [21]

Answer:

100,000 Ozone Molecules

Explanation:

I just found this online calculator that got the answer.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the name of this alkane?
    12·2 answers
  • An anode is an electrode immersed in the half-cell where _____ takes place.
    5·2 answers
  • Describe briefly the changes from the control values in the MEAN values for volume, specific gravity and NaCl after drinking pur
    5·1 answer
  • A container of what volume would be required to store 60.0 moles of a gas at a pressure of 20.0 atm and a temperature of 50.0 Ce
    5·1 answer
  • What mass of slaked lime is needed to decompose 10 g of ammonium chloride to give 100% yield? Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 +
    10·1 answer
  • What are the partial and total vapor pressures of a solution obtained by mixing 35.8 g benzene, and 56.7 g toluene, at the vapor
    14·1 answer
  • A. gaining 3 electrons
    11·1 answer
  • Which energy changes are associated with a liquid boiling?
    6·1 answer
  • Select the correct empirical formula for each molecular formula given.
    12·1 answer
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 16.84 nm. What is the total wi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!