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
maksim [4K]
2 years ago
7

NEED HELP PLEASE HURRY

Chemistry
1 answer:
baherus [9]2 years ago
7 0

Answer:

I believe it would be the last 2

Explanation:

the 4th one is magnesium and something else but that's with decomposition and so is the last one. the first three has water and oxygen and stuff that doesn't rly do decomposition

You might be interested in
Predict which substance in each pair has the higher surface tension.
natta225 [31]

Answer:

(a) Between methanol (CH₃OH) and glycerol (C₃H₅(OH)₃), the substance with the higher surface tension is glycerol (C₃H₅(OH)₃)

(b) Between tetrabromomethane (CBr₄) and chloroform (CHCl₃), the substance with the higher surface tension is chloroform (CHCl₃)

Explanation:

The surface tension of these substances at 20 °C given in mN/m, is as follows:

The surface tension of Methanol is 22.70

The surface tension of Tetrabromomethane is 26.95

The surface tension of Glycerol is 64.00

The surface tension of Chloroform is 27.50

(a) Between methanol (CH₃OH) and glycerol (C₃H₅(OH)₃), the substance with the higher surface tension is glycerol (C₃H₅(OH)₃)

(b) Between tetrabromomethane (CBr₄) and chloroform (CHCl₃), the substance with the higher surface tension is chloroform (CHCl₃)

8 0
3 years ago
In the ground state, an atom of which element has seven valence
sweet-ann [11.9K]

Answer:

Fluorine

Explanation:

Fluorine has 9 total electrons. The first two are in the 1s level, and the remaining electrons are on the outer level of the atom, with 2 in the s level and 5 in the p level. The electron configuration is 1s2 2s2 2p5.

7 0
3 years ago
Why do acids and bases have a good conduction of electricity?
omeli [17]
All acids only conduct electric current when they are dissolved in water, because when they are in an aqueous medium, they undergo ionization, i.e. release <span>ions.</span><span>

HCl --> H</span>⁺ + Cl⁻

The bases also conduct electric current in solution, because the Ionic dissociation sufferers (release the existing ions in the formula) and molecular ionization, suffer the reacting with water and releasing ions.

NaOH ---> Na⁺  + OH⁻

hope this helps!

7 0
3 years ago
All organic molecules have what element in common?
Sloan [31]
ALL organic molecules have carbon. 
Hope this helps :)
7 0
3 years ago
Read 2 more answers
Because of bronze's high
Svet_ta [14]
Because of Bronze's high...... what?
7 0
3 years ago
Other questions:
  • Write balanced molecular equation for the reaction between nitric acid and calcium hydroxide. Express your answer as a chemical
    8·1 answer
  • Eva pumps up her bicycle tire until it has a gauge pressure of 413 kilopascals. If the surrounding air is at standard pressure,
    6·2 answers
  • If a solution is considered basic, then _____________
    9·1 answer
  • Which statement best describes the difference between nuclear fission and nuclear fusion reactions?
    6·2 answers
  • A balloon containing a sample of helium gas measures 1.50 L at a temperature of 25.0°C is placed in a refrigerator at 36.0°F. Ca
    6·1 answer
  • Which action best demonstrates the transformation of mechanical energy to heat energy?
    6·2 answers
  • Which statement best describes a waxing gibbous moon?
    9·1 answer
  • Compound A and compound B are constitutional isomers with molecular formula C3H7Cl. When compound A is treated with sodium metho
    15·1 answer
  • What energy is stored
    6·1 answer
  • A Chalcogen and an Alkali metal would come together to form a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!