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
Nitella [24]
3 years ago
10

Put the moon phases in order from first to last phase.

Chemistry
2 answers:
quester [9]3 years ago
5 0
The answer is a i did the test 
ivolga24 [154]3 years ago
4 0
It is b or a check with someone else
You might be interested in
Elements that are generally shiny when smooth and clean.
Verdich [7]
Metals are elements that are generally shiny when smooth and clean
5 0
3 years ago
Why do you think polar aprotic solvents increase the rate of an sn2 reaction
viva [34]
Polar protic solvents actually speed up the rate of the unimolecular substitution reaction because the large dipole moment of the solvent helps to stabilize the transition state. The highly positive and highly negative parts interact with the substrate to lower the energy of the transition state.
5 0
2 years ago
The compound dioxane, which is used as a solvent in various industrial processes is composed of C,H, and O atoms. Combustion of
Lady_Fox [76]

Answer:

The correct formula of dioxane is C₄H₈O₂.

Explanation:

Given data:

mass of dioxane= 2.23 g

mass of water = 1.802 g

mass of carbon dioxide = 4.401 g

molar mass of dioxane = 88.1 g / mol

Molecular formula of dioxane = ?

Solution:

percentage of carbon = (4.401 g/2.23 g ) × (12 /44) × 100

                                     =  (1.98 × 0.273) × 100 = 54.1

percentage of hydrogen =  (1.802 g/ 2.23 g) × (2.016 /18.016) × 100

                                         = (0.81 × 0.112) × 100 = 9.072

percentage of oxygen = 100 - (54.1 + 9.072)

                                     = 100 - 63.172 = 36.828

Now we will determine the number of grams atoms of carbon, hydrogen and oxygen.

No. of gram atoms of carbon = 54.1 /12 = 4.51

No. of gram atoms of hydrogen = 9.072 / 1.008 = 9

No. of gram atoms of oxygen = 36.828 / 16 = 2.302

Atomic ratio:

    C :H :O               4.51/ 2.302    :   9 / 2.302   :  2.302 /2.302

    C :H :O                2 : 4 : 1

Molecular formula:

   Molecular formula = n × (empirical formula)

   n = molar mass of compound / empirical formula mass

   empirical formula mass= 2 × 12 + 4 × 1.008  + 1 × 16

    empirical formula mass= 24+ 4.032 +16 = 44.032

                 n = 88.1 / 44.032 = 2

        Molecular formula = n × (empirical formula)

        Molecular formula = 2 × (C₂H₄O)

         Molecular formula = C₄H₈O₂

8 0
3 years ago
Which rock type is an example of igneous glass?
irinina [24]

Answer:

obsidian

Explanation:

because it is an igneous rock which is smooth

5 0
2 years ago
What happen when iron reacts with copper sulphate​
Darina [25.2K]

Fe(s) + CuSO4(aq) -> Cu(s) + FeSO4(aq) is the answer if you get it in advance...

3 0
3 years ago
Other questions:
  • H2PO4-(aq) ⇆ H+(aq) + HPO42-( which ion plays the role of hydrogen ion donor and which one plays the hydrogen ion acceptor in BP
    14·1 answer
  • 1. A scientist studies the reaction 2NO2(g) 2NO(g) + O2(g). She performs three experiments using different concentrations of NO2
    12·1 answer
  • .Put 8.4 x 10^-6 into standard notation.
    13·1 answer
  • If every oxygen ion (combined with an aluminum ion) has a charge of –2, what must the charge of each aluminum ion be? How can yo
    11·1 answer
  • Identifying a trend in temperature change over time
    9·2 answers
  • What is the mass of the polypropylene in grams? Assume that 1 lbs = 453.952 grams. Drag and drop the
    9·1 answer
  • In an electron dot diagram of fluorine , how many dots should be drawn around the elements symbol
    12·1 answer
  • A chemical equation is balanced when the number of each
    10·1 answer
  • What kind of chemical reaction occurs in a hand-warming product that is worn inside gloves? Explain your answer.
    7·1 answer
  • What are air pollutants
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!