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
USPshnik [31]
2 years ago
12

HELP URGENT!

Chemistry
2 answers:
Tems11 [23]2 years ago
8 0

Answer:

Its A

Explanation:

B doesn't make sense because its the exact same process, it can't be easier

SCORPION-xisa [38]2 years ago
8 0
Answer: A

Explanation: B does not make sense. The amount of water doesn’t change the reaction. If water is under heat it will evaporate into a gas, if water is under cold temperatures it will begin to freeze into a solid. There is not a easier or harder way for water to evaporate or freeze.
You might be interested in
NaOH has a molarity of 2.5 M and a volume of 4 Liters, how many moles are in<br> the solution?
Inga [223]

Answer:

10. mol NaOH

Explanation:

2.5 M = 2.5 mol/L

2.5 mol/L * 4 L = 10. mol

7 0
2 years ago
How many moles of aspartame are present in 2.00 mg of aspartame?
ludmilkaskok [199]
Hope this helps, have a nice day!

8 0
3 years ago
What element is denoted by 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d6
IrinaVladis [17]

Element 76....Osmium

6 0
3 years ago
Read 2 more answers
Describe what does happen to the electrons when metal atoms are bonded together.
tankabanditka [31]

Answer: In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. Metals are shiny.

Explanation: Hope this helped!

4 0
2 years ago
Calcium oxide and oxygen gas are produced by the thermal decomposition of limestone in the reaction CaCO (s) CaO(s) + CO (g). Wh
kozerog [31]
The mass of lime that  can  be produced  from  4.510 Kg of limestone  is calculated  as  below

calculate the moles  of CaCO3  used

that is  moles =mass/molar mass
convert  Kg  to g  = 4.510 x1000 =4510g
=  4510 / 100 =45.10 moles
CaCO3 = CaO  +O2

by use of mole ratio between CaCO3  to CaO  (1:1) the  moles of CaO  is also= 45.10 moles
mass of CaO = moles x molar  mass

45.10  x56 = 2525.6  g  of  CaO



6 0
3 years ago
Read 2 more answers
Other questions:
  • Passing an electric current through a sample of water (H2O) can cause the water to decompose into hydrogen gas (H2) and oxygen g
    10·1 answer
  • Can someone help me to answer the questions 8 and 9
    13·1 answer
  • HELP ASAPP PLZZZ I WILL GIVE YOU 50 POINTS
    7·2 answers
  • Which is an example of a chemical reaction?
    7·1 answer
  • 1.) What are the chemical properties of matter?
    15·1 answer
  • Why do the elements of the same group have similar properties ?
    11·1 answer
  • Bromine + calcium iodide  calcium bromide + iodine
    11·2 answers
  • How do scientists use radioactive decay to date fossils and artifacts
    10·1 answer
  • How many moles of a gas are contained in 2.085 L at STP?
    8·1 answer
  • if a gas has an initial pressure of 24,650 pa and an initial volume of 376 ml, what is the final volume if the pressure of the g
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!