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
vagabundo [1.1K]
3 years ago
14

Write the mole ratios of (2ca+o2➡2cao)

Chemistry
2 answers:
tresset_1 [31]3 years ago
6 0
N(Ca)/2 = n(O)/1 = n(CaO)/2

The calcium and the Calcium Oxide are divided by 2 because of their coefficients
there is no number in front of the oxygen so it is over one.
Hope this helped!!
Svetach [21]3 years ago
5 0

Answer:

This question is incomplete.

Explanation:

Mole ratio is the ratio used to determine the equivalent of two substances (in moles) in a chemical reaction. Only the <u>number of moles</u> of a substance involved in a chemical reaction is considered in mole ratio. Also, the reaction for which mole ratio is to be considered must be balanced.

The interpretation of the equation in the question is that calcium (Ca) and oxygen (O₂) react in the ratio 2:1 to form calcium oxide (CaO).

It can also be said that 2 moles of Ca will be needed in the production of 2 moles of CaO. Hence the mole ratio between the two substances is 2:2.

The mole ratio between O₂ and CaO is 1:2 since 1 mole of O₂ was needed to produce 2 moles of CaO

You might be interested in
How many chlorine atoms are found in 8.3 moles of chlorine?
erik [133]

Answer:

5*10²⁴ chlorine atoms are found in 8.3 moles of chlorine.

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression. Avogadro's number applies to any substance.

Then you can apply the following rule of three: if 1 mole of the compound contains 6.023 * 10²³ atoms, 8.3 moles of the compound how many atoms does it have?

amount of atoms=\frac{8.3 moles*6.023*10^{23}atoms }{1 mole}

amount of atoms≅ 5*10²⁴ atoms

<u><em>5*10²⁴ chlorine atoms are found in 8.3 moles of chlorine.</em></u>

4 0
3 years ago
Give the symbols for metalloids
Elina [12.6K]

Answer:

The metalloids; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are the elements found along the step like line between metals and non-metals of the periodic table.

Elements: Germanium; Boron; Arsenic

Explanation:

6 0
3 years ago
Need help with this ASAP<br><br> Thanks!
olga_2 [115]

Answer:

Decomposers (either Secondary Consumer or Tertiary Consumer)

Explanation:

Decomposers eat dead materials and break them down into chemical parts. ... They keep the ecosystem free of the bodies of dead animals or carrion. They break down the organic material and recycle it into the ecosystem as nutrients. Vultures, Blowflies, hyenas, crabs, lobsters and eels are examples of scavengers.

6 0
3 years ago
the student records the concentration of the stock solution of H2O2 to be 0.950 M. The student proceeds to prepare the reaction
lana [24]

Answer:

0.0400M of KI

Explanation:

Molarity is an unit of concentration defined as the ratio between moles of solute and liters of solution.

When you add 10.0 mL of 0.10M KI and 15.0mL, total volume is:

25.0mL = <em>0.025L of solution</em>

<em />

And moles of KI are:

0.0100L × 0.10M = <em>0.00100 moles of KI</em>

<em />

Thus, molarity is:

0.00100 moles / 0.025L = <em>0.0400M of KI</em>

6 0
3 years ago
What's the best way to get friends on this website?
krok68 [10]
To help them. Kindly.
5 0
3 years ago
Other questions:
  • What element has three electrons in its 5d sublevel? nd nb ta u
    10·2 answers
  • Atoms in group 15 or 5a tend to form ions with a ______ charge.
    15·1 answer
  • Whatd to do to make the time go by faster
    11·2 answers
  • What liquid is the universal solvent?
    13·1 answer
  • NEED QUICK ANSWERS ( science)
    7·1 answer
  • Assignment
    14·1 answer
  • Choose the mole ratio below that is INCORRECT based on the given balanced equation:
    8·1 answer
  • Convert 100 miles to inches (there are 5280 ft in one mile)
    8·1 answer
  • Fill the blanks :
    15·1 answer
  • 7. Which metal is more easily oxidated, copper or aluminum?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!