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
Mkey [24]
2 years ago
7

Bài 1: Đốt cháy 28 lít khí mêtan CH4 trong không khí sinh ra khí cacbon đioxit và hơi nước.

Chemistry
1 answer:
Lubov Fominskaja [6]2 years ago
7 0

Answer:

gghdxfjnj8jh7fwft

Explanation:

ffujggvggggfffffffrrrd

You might be interested in
Calculate the molarity of 13.1 g of NaCl in 727 mL of solution
valentina_108 [34]

Answer:

The molarity of the solution is 0,31 M

Explanation:

We calculate the weight of 1 mol of NaCl from the atomic weights of each element of the periodic table. Then, we calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter)

Weight 1 mol NaCl= Weight Na + Weight Cl= 23 g + 35, 5 g= 58, 5 g

58, 5 g-----1 mol NaCl

13,1 g ---------x= (13,1 g x 1 mol NaCl)/58, 5 g= 0, 224 mol NaCl

727 ml solution------ 0, 224 mol NaCl

1000ml solution------x= (1000ml solutionx0, 224 mol NaCl)/727 ml solution

x=0,308 mol NaCl---> <em>The solution is 0,31 molar (0,31 M)</em>

5 0
3 years ago
A gas held at constant volume is heated from -5 degrees C to 50 degrees C, if the initial pressure is 1.0 atm, what is the new p
Hunter-Best [27]
1.21 atm, assuming the gas behaves ideally
8 0
2 years ago
Which are characteristics of a prokaryotic cell? Select three options.
Lostsunrise [7]

Answer:

Contains DNA, Contains Ribosomes, Lacks a nucleus

Explanation:

4 0
3 years ago
Read 2 more answers
How many neutrons does element X have if its atomic number is 44 and its mass number is 151?
Phoenix [80]
To find the number of neutrons, you subtract the atomic number from the mass number of element X. So in this case, it'll be 151-44= the number of neutrons.
6 0
3 years ago
What causes the subduction zone when an oceanic plate collides with a continental plate
Ad libitum [116K]
Oceanic<span> crust tends to be denser and thinner than </span>continental<span> crust, so the denser</span>oceanic<span> crust gets bent and pulled under, or </span>subducted<span>, beneath the lighter and thicker </span>continental<span> crust. </span>
7 0
3 years ago
Other questions:
  • The equilibrium constant of a reaction: A) is not related to the change in free energy of the reaction. B) is the same as the ma
    10·1 answer
  • Write the correct answers.
    5·1 answer
  • The main function of a producer in an ecosystem is
    5·1 answer
  • I need help asaaaaap
    10·1 answer
  • the ratio of dahlias to tulips in a flower arrangement is 2 to 5 which of these could be the number of dahlias and tulips in the
    14·1 answer
  • If 1.0g of rubidium and 1.0 g of bromine are reacted what will be left in measurable amounts in the reaction
    5·1 answer
  • Which of these pairs of elements have the same number of valence electrons?
    15·1 answer
  • Are there other universes?
    14·1 answer
  • How do take off my question when I don't have a question?
    5·2 answers
  • The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!