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
OLEGan [10]
3 years ago
12

A roller coaster reaches its maximum kinetic energy when it?

Chemistry
1 answer:
Oksana_A [137]3 years ago
8 0
When it begins rolling down the hill.
You might be interested in
The iron with which they make the houses or bridges is the same as our blood?
Leviafan [203]

Explanation:

yes, they are the same.

"Iron is a mineral that the body needs for growth and development. Your body uses iron to make hemoglobin, a protein in red blood cells that carries oxygen from the lungs to all parts of the body, and myoglobin, a protein that provides oxygen to muscles."

Fun fact:

At 4 grams per person, you'd need at least 2,352 completely drained donors to make a iron longsword out of blood.

3 0
3 years ago
Which of the following compounds exhibit hydrogen bonding?
hodyreva [135]

Answer:

a,b,e,f,g

Explanation:

Hydrogen bonding is an intermolecular force of attraction between two molecules. It is a special type of dipole-dipole attraction.

In hydrogen bonding, the hydrogen on one molecule binds with an electronegative atom on another molecule usually oxygen, nitrogen and fluorine.

The simple electrostatic attraction leads to strong intermolecular interaction between two molecules.

 For the formation of hydrogen bond, a hydrogen atom must be bonded to more electronegative specie usually N, O and F

  In H₂O and H₂O₂ ;   hydrogen bonds with Oxygen

       CH₃NH₂; hydrogen is attached to nitrogen

       HF; hydrogen is attached to fluorine

        CH₃OH; hydrogen is attached to oxygen

         

7 0
3 years ago
Increasing which factor will not increase the rate of a chemical reaction?
vladimir1956 [14]
Two substances cannot react with each other unless their constituent particles (molecules, atoms, or icons) come into contact if there is no contact the reaction rate will be ZERO
6 0
3 years ago
Read 2 more answers
Which has more moles of carbon atoms, 169.2g of vitamin B6 or 176.1g of vitamin C?
ki77a [65]
169.2g of vitamin B6
8 0
3 years ago
Which of the following molecules contains a polar covalent bond?
jek_recluse [69]

Answer:

ummm well you have to go to school I

5 0
2 years ago
Other questions:
  • What pH must organisms maintain
    6·2 answers
  • Density Calculations
    12·1 answer
  • Most people now know that hot air____ as a result of its lower density.
    15·1 answer
  • What solutes are soluble in water?
    11·1 answer
  • Please help i really don't wanna fail :(
    6·2 answers
  • Mercury (II) oxide decomposes to mercury and oxygen. In the chemical equation below, what is the subscript, x, on the oxygen equ
    6·1 answer
  • Which type of galaxy contains mostly new stars because it has lots<br> of dust and gas
    10·1 answer
  • 1. What type of chemical reaction is the following equation?<br> AIBr3 +K → KBr + AI
    6·2 answers
  • What process must occur to cause sediment to stick together when forming sedimentary rock?
    7·1 answer
  • Match the equation with the appropriate description.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!