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
kompoz [17]
3 years ago
9

Which of these is a element: Salad, Sugar, Water, or Potassium

Chemistry
1 answer:
vovikov84 [41]3 years ago
3 0

Potassium is a chemical element

Symbol: K

Atomic number: 19

Atomic mass: 39.0983 u ± 0.0001 u

Electron configuration: [Ar] 4s1

Melting point: 146.3°F (63.5°C)

You might be interested in
write the equation that matches the description one atom of zinc reacts with one atom of sulfur to yield one molecule of zinc su
Elis [28]

Answer: Zn + S —> ZnS

Explanation:

3 0
3 years ago
A student burns 1.50 mol C3H8 according to the following reaction:
g100num [7]

1.50 mol C3H8 X (3 mol CO2 / 1 mol C3H8) X (44.0 g CO2 / 1 mol CO2) = 198 g CO2

3 0
3 years ago
Read 2 more answers
What is the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen
natta225 [31]
Carbon(C):
number of moles= mass/molar mass(Mr)
=65.5/12
=5.5 moles

Hydrogen(H):
number of moles=mass/molar mass (Mr)
=5.5/1
=5.5 moles

Oxygen (O):
number of moles = mass/molar mass (Mr)
=29.0/16
=1.8 moles

EF= lowest number of moles over each of the elements

So,
C= 5.5/1.8 = 3
H= 5.5/1.8 = 3
O= 1.8/1.8 = 1

Therefore Emperical formula= C3H3O
6 0
2 years ago
Which of these processes involves the splitting of an Atom
Sever21 [200]
Nuclear fossion hope this helps
3 0
3 years ago
Read 2 more answers
If you want to lift a 30-kg box to a height of 1 m, how much work will it take?
natta225 [31]

Explanation:

workdone = force x distance

force = mass x acceleration

30 x 10 = 300N

300N x 1m

workdone= 300J

7 0
3 years ago
Other questions:
  • At elevated temperatures, methylisonitrile (CH3NC) isomerizes to acetonitrile (CH3CN): CH3NC (g) → CH3CN (g) At the start of the
    10·1 answer
  • What is true about the element Francium (Fr, atomic number 87)? choose 3
    14·1 answer
  • The combustion of ethanol ( C 2 H 6 O) produces
    10·2 answers
  • The formation of a plaque and halitosis can be avoided by brushing and flossing at least :
    15·1 answer
  • Which correctly describes the location and charge of the electrons in an atom
    7·1 answer
  • Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. a particular ore contains 68.5% gal
    9·2 answers
  • What mass (g) of magnesium nitride (Mg3N2) can be made from the reaction of 1.22 g of magnesium with excess nitrogen? __Mg + __N
    5·1 answer
  • HELP ME PLEASE ASAP. I'LL MARK YOU BRAINLIEST <br> ITS NUMBER 23.
    6·1 answer
  • Empirical formula of c8h14
    15·1 answer
  • Which pair will for an ionic compound
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!