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
Setler79 [48]
3 years ago
5

Select the correct responses to the questions from the drop-down menu.

Chemistry
2 answers:
inn [45]3 years ago
6 0

Answer:

b,a

Explanation:

Damm [24]3 years ago
5 0

Answer: Fossils, Precambrian

Explanation:)

You might be interested in
If carbon lost one proton, what atom would be formed
Rudiy27

Answer:

boron

Explanation:

boron has 5 protons and carbon has 6, so if carbon lost a proton, it would become boron since each element has a unique number of protons.

5 0
3 years ago
calculate the enthalpy change for converting 1.00 mol of liquid water at 100 C to water vapor at 145 degree celsius for water Δ
Svetllana [295]

Answer:

q1 = mCpΔT

    = 18.016g × 1.84J/g.K × (418.15-373.15)

     = 1491.72 J

q2 = n×ΔH vap

     =  1mol ×44.0kJ/mol

     = 44KJ

∴ qtotal = q1+ q2

             = 1.498kJ + 44.0kJ

             = 45.498KJ

Explanation: The heat flow can be separated into steps.all that is being observed at a constant pressure,the heat flow is equal to the enthalpy.

8 0
3 years ago
Which carbon skeleton represents a ketone?<br> c-c-c-c=0<br> C-C-C-C-0<br> C-C-C-C-o<br> C-C-0-C
aliina [53]

Answer:

None of the options are correct

Explanation:

Ketone is an organic compound with general formula RCOR' ie RC=OR where R and R' are alkyl groups. Example of ketone can be written as:

C—C—C=O—C

8 0
3 years ago
Read 2 more answers
Which metal was more reactive in water? How do you know?
Rom4ik [11]

Answer:

alkali metals

Explanation:

they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.

6 0
3 years ago
Read 2 more answers
What force is causing The object to eventually stop moving
hichkok12 [17]

Answer:

Hey buddy, here is your answer. Hope it helps you.

Explanation:

The force stopping the object's motion might be an obvious one - the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction.

3 0
3 years ago
Other questions:
  • Write the complete electron configuration for sodium ion
    8·1 answer
  • The total number of atoms represented by the formula Fe3(PO4)2 is
    9·2 answers
  • What has a higher temperature a match or an ice cube
    8·1 answer
  • Suppose you have an aqueous solution containing 158.2 g KOHper
    11·1 answer
  • Draw the lewis structure for the polyatomic trisulfide s−23 anion. be sure to include all resonance structures that satisfy the
    9·1 answer
  • Analyze the data and determine the actual concentration of calcium chloride in the solution. Show all calculations and report in
    7·1 answer
  • Can someone help<br> Me out pls if your good at chemistry
    7·1 answer
  • Which structure is not an isomer of pentane and state why?
    10·1 answer
  • Which of the following is a cycloalkane?​
    15·2 answers
  • Given the reaction below, if 0.003 g of carbon dioxide is used up, how many grams of oxygen will be produced? (show work)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!