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
Sergeu [11.5K]
2 years ago
5

What are the missing coefficients for the chemical equation [ ] Ca + [ ] O2 → [ ] CaO

Chemistry
1 answer:
katen-ka-za [31]2 years ago
4 0

Answer:

{ \sf{[ 2] Ca_{(s)} + [1 ] O_{2(g)} → [ 2] CaO _{(s)}}}

You might be interested in
How many moles of NaCl are present in 2.50 L of a 0.070 M solution?
posledela

Given :

Volume of NaCl solution 2.5 L .

Molarity of NaCl solution is 0.070 M .

To Find :

How many moles are present in the solution.

Solution :

Let, n be the number of moles.

We know, molarity is given by :

M = \dfrac{n}{V(in\ L)}

So,

n = M \times V\\\\n = 0.070\times 2.5 \\\\n = 0.175\ moles

Therefore, number of moles of NaCl is 0.175 moles.

6 0
3 years ago
How many covalent bonds are in a nitrogen molecule?
makvit [3.9K]
3 covalent bonds (there are 2 electrons in the first orbital and 5 in the second. You still have room for three more)
7 0
3 years ago
Provided is a diagram showing forces on a box.
Eduardwww [97]

Answer:

5 N left

Explanation:

trust me cccuuhh

4 0
3 years ago
The two methods in the lab for measuring the volume of a geometric solid object are weighing it on the balance and measuring it
Yakvenalex [24]

Answer:

Measuring with a ruler and using final volume minus initial volume

Explanation:

You can measure the volume of a geometric object by measuring its sides with a ruler and calculating the volume according to the corresponding formula for each object. For example, for a rectangular prism it would be

volume=length*width*height

You can also measure the volume of an object by measuring how much water it displaces. To do this you have to fill a measuring cylinder with enough water for the object to be completely submerged and take note of the volume. Then, add the object and note again the volume of the water+object. The difference between both is the volume of the object.

Volume of the object= volume of water and object - volume of water

The advantage of the second method is that it can be used for objects with irregular shapes as long as they do not float.

8 0
3 years ago
The number of moles of solute in 200.ml of a 0.500 m solution is
IrinaK [193]

Answer:

I believe the answer is 0.100.

Explanation:

Hope my answer has helped you!

8 0
3 years ago
Other questions:
  • Which factor does not influence the rate of a chemical reaction
    8·1 answer
  • Did scallops live before or after dinosaurs according to a fossil record
    9·2 answers
  • in the balance equation 2c2h6+7o2=4co2+6h2o 10 g of c2h6 react with 42.5 g o2 what is the excess reactant
    6·2 answers
  • A molecule of aluminum fluoride has one aluminum atom. How many fluorine atoms are present?
    9·2 answers
  • What does the number of protons<br> determine?
    7·1 answer
  • The table compares the final cost of
    15·1 answer
  • PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!
    9·1 answer
  • the ___is the area that allows us to pinpoint the location of pain, identify a texture and be aware of how our limbs are positio
    15·1 answer
  • Which is larger 1.45 or 1.2544 for density
    10·1 answer
  • The hydrogen and oxygen atoms in a molecule of water are held together by
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!