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
katrin [286]
3 years ago
7

Calcium +oxygen in chemicals formulars

Chemistry
2 answers:
inna [77]3 years ago
5 0

Answer:

CaO

Explanation:

Calcium has 2+ charge

Oxygen has 2- charge

amid [387]3 years ago
5 0

Chemicals formula of calcium + oxygen :

\:  \:  \:  \:  \:  \:  \:  \:  \:   \red{ \star}\underline{ \underline{ \boxed{Ca + O_2 }}}

You might be interested in
Find the number of moles of water that can be formed if you have 182 mol of hydrogen gas and 86 mol of oxygen gas.
frutty [35]
Water has a chemical formula of H2O. This means that for every 2 moles of hydrogen and 1 mole of oxygen, one mole of water will be formed.

Note that hydrogen gas and oxygen gas are both biatomic molecules. 

 (1)                   (182 mol H2) x (1 mol H2O/ 1 mol H2) = 182 mol H2O
 (2)                   (86 mol O2) x (2 mol H2O / 1 mol O2) = 172 mol H2O

We choose the smaller number of the two as the answer to this item. Thus, the answer to this question is 172 mol of H2O can be formed out of the given quantities. 
3 0
3 years ago
What is the meaning of semipermeability?​
ollegr [7]

Answer:

semipermeability

Explanation:

partially but not freely or wholly permeable specifically : permeable to some usually small molecules but not to other usually larger particles a semipermeable membrane.

8 0
3 years ago
The radius of a uranium atom is 149 pm. How many uranium atoms would have to be laid side by side to span a distance of 4.96 mm?
nikitadnepr [17]

Answer:

4960000000 pm

Explanation:

4.96*1000000000= 4960000000

4 0
3 years ago
Read 2 more answers
What would be the formula of the precipitate that forms when pb(no3)2 (aq) and k2so4 (aq) are mixed?
maria [59]
The formula of the ppt. formed is PbSo4 , which is inslouble.
6 0
3 years ago
If the percent by volume is 2.0% and the volume of solution is 250 mL, what is the volume of solute in solution? Show your work.
Mrrafil [7]
Volume of solute = 250 * 2%
= 250 * 0.02
= 5

In short, Your Answer would be 5 mL

Hope this helps!
3 0
3 years ago
Other questions:
  • For the reaction A + B − ⇀ ↽ − C + D A+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing
    5·2 answers
  • A military jet cruising at an altitude of 12.0kmand speed of 1900./kmh burns fuel at the rate of 74.4/Lmin. How would you calcul
    5·1 answer
  • What is the overall reaction order for the following rate law: rate = k [A]2[B]?
    8·2 answers
  • Which reactions have a positive Δrxn? A(g)+B(g)⟶C(g) 2A(g)+2B(g)⟶5C(g) A(s)+B(s)⟶C(g) 2A(g)+2B(g)⟶3C(g)
    7·1 answer
  • Substance formed by the chemical combination of elements is called
    12·1 answer
  • What should be the labels on the X-axis and Y-axis?​
    12·1 answer
  • For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make 108.6 grams of methane, CH4 ?
    7·1 answer
  • Need help I don’t understand this at all need to show my work and strategy it’s stoichiometry gram to gram please help
    10·1 answer
  • PLS HELP QUICK ALOTTT OF POINTS
    8·1 answer
  • When a capacitor has a potential difference between the plates it is said to be ? . one plate has an excess of electrons and one
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!