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
LenKa [72]
3 years ago
10

I'm lost....can anyone explain please?

Chemistry
1 answer:
pashok25 [27]3 years ago
3 0
I'll do A for you. They are all double displacement reactions. So recall: AB+CD--> CB+AD . Also, knowing the charges will help and make this so easy.
You might be interested in
a sample of carbon dioxide is contained in a 250.0mL flask at 0.973 atm and 19.0 celcius. how many molecules of gas are in the s
lbvjy [14]

Answer:n = PV/RT = 0.923 atm x 0.250 L / (0.082057 x 290.75 K) . n = 0.00967. mole  0.00967 mole x 6.22x10^23 molecules/mole = 6.02x10^21 molecules of gas

Explanation:

3 0
3 years ago
Read 2 more answers
How many grams of the parent isotope are left in the sample after three half lives?
pochemuha
After 3 half-lives, 125 grams of the parent isotope will remain.
5 0
2 years ago
How many sulfur atoms would be present in 41.8 moles of sulfur?
Montano1993 [528]

Answer:

2.51 x 10*25 atoms

6 0
3 years ago
What happens to the molecules in a glass of water as the water evaporates?
salantis [7]
Kinetic energy of the molecules increases and we are close to boiling point liquids. Then strain the liquid and gas pressure reached equilibrium
.
6 0
3 years ago
Carbon's atomic number is 6. this means that it has __________ electrons. after completing the first energy level, carbon has __
ser-zykov [4K]

a) 6 electrons - because atomic number is the same as the electron number

b) 4 - because 6-2=4

c) Covalent bonds - it needs 4 more electrons for a full outer shell.

4 0
3 years ago
Other questions:
  • The rare earth elements include A. the lanthanide series and the alkali metals. B. the alkali metals and the transition metals.
    9·2 answers
  • Calculate the concentration of all species in a 0.165 m solution of h2co3.
    7·1 answer
  • What is the Ksp value of Au(OH)3 in chemistry?!​
    12·1 answer
  • Consider the following weak acids and their Ka values: Acetic Acid Ka = 1.8×10^−5 Phosphoric Acid Ka = 7.5×10^−3 Hypochlorous Ac
    6·1 answer
  • A water bottle has a mass of 14.0g. Given a density of 1.38g/cm^3, what is the volume of the plastic used to make the water bott
    11·1 answer
  • What is the uncertainty of a 10ml pipet?​
    10·1 answer
  • #
    8·1 answer
  • Is mercury chloride ionic or covalent
    15·1 answer
  • An equation thats shows how an objects acceleration relates to its mass
    5·1 answer
  • What is the difference between a conductor and an insulator?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!