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
padilas [110]
3 years ago
14

Question 11 (5 points)

Chemistry
1 answer:
LenKa [72]3 years ago
8 0

Answer:

False

Explanation:

On the left side of the equation (Li + O2), there is 1 Li atom and 2 O atoms.

but on thw right side of the equation (Li2O,) there is 2 Li atoms and 1 O atom

You might be interested in
tate whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting o
damaskus [11]

Answer: Physical change : tearing of paper, fixing of wtaer

Chemical change:  rusting of iron ,  electrolysis of water​, Rancidification

Explanation:

Physical change is a change in which there is no rearrangement of atoms and thus no new substance is formed. There is only change in physical state of the substance.

Example:  tearing of paper, fixing of wtaer

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.

Example: rusting of iron ,  electrolysis of water​, Rancidification

3 0
2 years ago
Balance equation Al(s)+__CuSO4(aq) = ____Al2(SO4)3(aq)+____Cu(s)
Leokris [45]
2Al +3CuSO4=Al2 (SO4)3+3Cu.

is the balanced equation.

HOPE IT HELPS YOU '_'
8 0
3 years ago
Read 2 more answers
Compare and contrast: element, atom, isotope
blsea [12.9K]

Answer:

Element is made up of the atoms or isotopes. Isotopes are where only neutrons change in number, such as 3 turning to 2 or to 5. Atom is where it is not changed and it is the original, and example is instead of Carbon13 it is just Carbon. I hope this helps.

7 0
3 years ago
Read 2 more answers
What is the effect of this??
a_sh-v [17]

Answer:

Explanation:

The wavelength is the distance between two adjacent wavefronts. ... If the wave crosses to the new medium at an angle (not 90 degrees), the change ... When light enters a more optically dense medium, it is refracted closer to the normal. the same as the critical angle, light will travel along the boundary of the 2 mediums.

7 0
3 years ago
Read 2 more answers
2. Water is a great example of a molecule with polar covalent bonds. How does this bond affect the
Rzqust [24]

Answer :

Example of polar covalent molecules H-O-H(water), ammonia

Explanation:

The presence of intermolecular Hydrogen bonding makes the boiling point of water unexpectedly high, and the polar covalent nature makes it dissolve polar solute/compound

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the molecules represented below contains carbon with sp2 hybridization?
    10·1 answer
  • A sample of water and alcohol are mixed. What method should be used to separate them?
    6·1 answer
  • 4. Write a chemical formula for a compound that has two atoms of oxygen (0) and
    13·1 answer
  • The positively charged particles found in the nucleus of an atom are called ______.
    6·1 answer
  • What are the benefits of using supercritical fluids in EGS​
    5·1 answer
  • Which term below represents a pure substance that can be separated chemically, but cannot be separated physically, that is made
    8·2 answers
  • Between acetic acid and sulphuric acid, which of their structure is more stable​
    11·2 answers
  • Of the following transitions in the Bohr hydrogen atom, which of the following
    10·1 answer
  • Pablo wants to enter the science fair. Which question could be answered through scientific investigation?
    7·2 answers
  • Define concentration and give examples.​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!