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
dlinn [17]
3 years ago
5

D

Chemistry
1 answer:
sweet [91]3 years ago
8 0

explanation

the chemical formula of water is H²O.

Hydrogen+Oxygen=water

answer

Hydrogen-Water-Hydrogen

You might be interested in
What kind (ionic or covalent) bond is FeCl2 + Na2CO3? (iron (II) chloride + sodium carbonate).
kipiarov [429]

Answer:

corbonate

Explanation:

i think so. not sure

6 0
3 years ago
Which nonmetals have similar chemical properties? Check all that apply.
alisha [4.7K]

Answer:

Sulfur

Selenium

Oxygen

Explanation:

You’re welcome:)

7 0
3 years ago
Read 2 more answers
From the enthalpies of reaction H2(g)+F2(g)→2HF(g)ΔH=−537kJ C(s)+2F2(g)→CF4(g)ΔH=−680kJ 2C(s)+2H2(g)→C2H4(g)ΔH=+52.3kJ calculate
DIA [1.3K]

Answer:

\Delta H for the given reaction is -2486.3 kJ

Explanation:

The given equation can be written as a combination of the following equation:

2H_{2}(g)+2F_{2}(g)\rightarrow 4HF(g)  ; \Delta H_{1}= (2\times -537kJ)=-1074 kJ

2C(s)+4F_{2}(g)\rightarrow 2CF_{4}(g)  ;  \Delta H_{2}=(2\times -680kJ)=-1360kJ

C_{2}H_{4}(g)\rightarrow 2C(s)+2H_{2}(g)  ;  \Delta H_{3}=-52.3kJ

-----------------------------------------------------------------------------------

C_{2}H_{4}(g)+6F_{2}(g)\rightarrow 2CF_{4}(g)+4HF(g)

\Delta H=\Delta H_{1}+\Delta H_{2}+\Delta H_{3}=(-1074-1360-52.3)kJ=-2486.3kJ

6 0
3 years ago
How does the lithosphere affect volcanoes
Brilliant_brown [7]
The lithosphere affects the volcanoes by release ash and poisonous   in different types of carbon dixode
8 0
3 years ago
Read 2 more answers
The density of an aqueous solution containing 10.0 percent of ethanol (C2H5OH) by mass is 0.984 g/mL. (a) Calculate the molality
Mrrafil [7]

Answer:

a. 2.41 molal

b. 0.21 M

c. 58.5 mL

Explanation:

First of all let's think the data 10 % by mass, which means, that 10 grams from the solute is contained in 100 g of this solution.

So If we know solution density, we can get its volume.

Solution density = Solution mass / Solution volume

0.984 g/ml = 100 g / Solution volume

Solution volume = 100 g/ 0.984g/ml

Volume = 101.6 mL

As we have 10 g of solute, 100 g of solution, we have 90 g of solvent.

Solute mass + Solvent mass = Solution mass

How many moles do we have in 10 g of ethanol?

Molar mass of ethanol: 46.07 g/m

Mass / molar mass = Moles

10 g/ 46.07 g/m = 0.217 mol

This quantity is in 90 g of solvent and 101.6 mL of solution. For molality and molarity, we should use a rule of three to find out the moles in 1 kg of solvent and 1 L of solution.

1 L = 1000 mL

1kg = 1000 g

<u>Molality</u>

90 g _____ 0.217 moles

1000 g _____ (1000 . 0.217)/ 10 = 2.41 molal

Molarity

101.6 mL ___ 0.217 moles

1000 mL ____  (1000 . 0.217) / 101.6 = 0.21 M

What volume of the solution would contain 0.125 mole of ethanol?. Let's think a new rule of three.

0.217 moles of solute ___ are in __ 101.6 mL of solution

0.125 moles of solute___ are in (0.125 . 101.6)/0.217 = 58.5 mL

6 0
3 years ago
Other questions:
  • What is produced when chlorine is mixed with ethane?
    12·1 answer
  • Gamma rays are often used to kill microorganisms in food, in an attempt to make the food safer. Some people contend that this ir
    15·1 answer
  • would precipitation occur when 500 ml of a 0.02 m solution of agno3 is mixed with 500ml of a 0.001M solution of nacl? explain
    8·1 answer
  • If the solubility of a gas in water is 5.0 g/L when the pressure of the gas above the water is 2.5 atm, what is the pressure of
    5·1 answer
  • Combustion of hydrocarbons such as decane produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmospher
    6·1 answer
  • Select True or False: Hydrogen plays an important role in many industrial processes. The following correctly represents a balanc
    7·1 answer
  • The total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture. This is known
    7·1 answer
  • Write an ionic equation of hydrogen peroxide reacting with sodium sulphite​
    5·1 answer
  • Which of the following is composed of many cells?
    5·1 answer
  • Hey siri how do you make ice cube ????????????????????????????????????
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!