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
ycow [4]
3 years ago
7

How old are you? 0-12 12-17 17-25 69+ I don't know

Chemistry
2 answers:
muminat3 years ago
8 0
Answer: I am 12-17 years of age
rjkz [21]3 years ago
4 0

Answer:

I don't know

Explanation:

that how old I am

You might be interested in
Which ionic compound is water soluble? CuS NH4 NO3 SrSO4 ZnF
katovenus [111]
Just use a solubility chart! Find the cation on the far left and the anion on the top and find where they connect. If it says "s," it is not soluble. If it says "aq," it is soluble. Here, ZnF (Zinc Fluoride) is soluble. Hope that helps! :)

P.S. Not all of the compounds above are on this particular chart. In future problems, just google "solubility chart" until you find one with all of the compounds you need to look at.

5 0
3 years ago
Read 2 more answers
How many moles of carbon dioxide gas should be produced when 10.0 g of C2H6 are combusted at STP?
Finger [1]

Answer:

                    0.665 moles of CO₂

Explanation:

                     The balance chemical equation for the combustion of Ethane is as follow:

                            2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Step 1: <u>Calculate moles of C₂H₆ as;</u>

                              Moles  =  Mass  /  M.Mass

Putting values,

                              Moles  =  10.0 g / 30.07 g/mol

                              Moles  =  0.3325 moles

Step 2: <u>Calculate Moles of CO₂ as;</u>

According to balance chemical equation,

                    2 moles of C₂H₆ produced  =  4 moles of CO₂

So,

             0.3325 moles of C₂H₆ will produce  =  X moles of CO₂

Solving for X,

                      X  =  0.3325 mol × 4 mol ÷ 2 mol

                      X = 0.665 moles of CO₂

3 0
3 years ago
Which describes the role of carbon dioxide in photosynthesis?
jeka57 [31]

Answer:

It is a reactant, so it enters the plant.

Explanation:

Hello,

Photosynthesis is the natural process occurring when plants produce sugar and oxygen by using the visible light as the catalyst to undergo the following chemical reaction:

6CO_2+6H_2O-->C_6H_{12}O_6+6O_2

In such a way, it is seen that the carbon dioxide has the role of reactant as it is used by the plant, that is, it enters the plant to allow the photosynthesis to be carried out.

Best regards.

6 0
3 years ago
Read 2 more answers
6.25 g of HCl(g), a strong acid, is dissolved in water to make a 280-ml solution.
elena-14-01-66 [18.8K]

pH= -log[0,611]= 0,21

7 0
3 years ago
What is the nature of the Se-Cl bond in a molecule of selenium chloride (SeCl2) if the electronegativity value of selenium is 2.
ELEN [110]
MODERATELY POLAR COVALENT.
6 0
3 years ago
Read 2 more answers
Other questions:
  • A solution has a volume of 2.0 L and contains 36.0 grams of glucose (C6H12O6). If the molar mass of glucose is 180 g/mol, what i
    9·1 answer
  • Use a Punnett square to help answer the question. Use a Punnett square. In rabbits, black fur is dominant over white fur. What p
    10·1 answer
  • If you have a pH of 3.35, what is the hydrogen ion concentration of the solution?
    6·1 answer
  • The diameter of an atom is approximately 1 * 10 ^ - 10 * m . What is the diameter in decimeters?
    15·1 answer
  • Based on the information above, which statement provides evidence that a chemical reaction has occurred?
    6·1 answer
  • How many moles are in 1.81 x 1024 molecules of CO2?
    5·1 answer
  • if you wanted to create 500g of calcium carbonate how much calcium chloride and sodium carbonate would you need?I need help plea
    14·1 answer
  • Pls answer asap! NO ATTACHMENTS!!!
    11·1 answer
  • 5.5 g of metal is placed in a graduated cylinder containing water. The level of water increases from 12.0 ml to 13.5 ml. The den
    10·1 answer
  • determine the ph at the equivalence point for the titration of a 40.0 ml sample of 0.100 mhno2 by 0.200 mkoh . (the pka of nitro
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!