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
oksian1 [2.3K]
4 years ago
13

Explain how mass and energy can be conserved even during a chemical change.

Chemistry
1 answer:
trapecia [35]4 years ago
6 0
Mass and energy cannot be destroyed or created through a chemical change, only rearranged throughout the molecules. This is why mass and energy can be conserved during a chemical change. 
You might be interested in
Explain why we experience seasons. *
REY [17]

Answer:

Seasons occur because Earth is tilted on its axis relative to the orbital plane, the invisible, flat disc where most objects in the solar system orbit the sun. ... In June, when the Northern Hemisphere is tilted toward the sun, the sun's rays hit it for a greater part of the day than in winter.

4 0
3 years ago
Read 2 more answers
I need help doing this please. It’s an image
Ne4ueva [31]

Answer:

k+

Ba2+

Al3+

K+

S2-

you may think that if it has a + it would be bigger, but it is actually the opposite.

5 0
4 years ago
The ions Cr3+ and O2- combine to form the ionic compound chromium oxide. In what proportions do these ions combine to produce a
VMariaS [17]
<span>Cr3+ O2- ; the formula is Cr2O3 ( criss cross)</span>
7 0
3 years ago
Read 2 more answers
UU
BigorU [14]

Answer:

Samarium

Explanation:

The element Sm describe is called Samarium. This element has unique sets of properties that makes it very unique and distinct.

The lanthanides are found in the f-block on the periodic table of elements.

This element is a moderately hard silvery metal that readily oxidizes in air. It assumes an oxidation state of +3. The element has an atomic number of 62

7 0
3 years ago
What are some changes that can be caused by sound energy? by electromagnetic energy?
Pavel [41]

Hearing loss due to sound energy damaging the nerve cells in the inner ear. Many animals behavior is influenced by sound energy. They learn to associate events with sounds, so they run when something crunches in the dry grass (might be a coyote), but won't be bothered by the sound of a waterfall. Mood is affected by sound energy. A wine glass can break with sound energy, if the frequency matches the resonant frequency of the wine glass and the amplitude is great enough (one Mythbusters show featured a professional singer who broke a wine glass with his voice without any amplification).

5 0
3 years ago
Read 2 more answers
Other questions:
  • Write the electron configuration for sodium.
    9·1 answer
  • How water deposits soil sediment and rock
    15·1 answer
  • Which type of bonding is most important in ch3ch2ch2ch2ch2ch3?
    11·1 answer
  • Let's write that m = molarity in units of moles/liter and n = number density = N/V, the number of molecules divided by the volum
    15·1 answer
  • PLEASE HELP MEEEEE
    7·2 answers
  • In what sense is the wave motion of a guitar string analogous to the motion of an electron in an atom?
    10·1 answer
  • You heat two substances, A and B. Both substances change color. When cooled, substance A returns to its original color, but subs
    15·2 answers
  • Explain why hydrogen will form an ionic bond with fluorine but only forms covalent bonds with carbon
    10·2 answers
  • Collision theory states that as molecules or ions bump into each other, a reaction will only occur if the collision has the corr
    9·1 answer
  • How many moles of H3PO4 would produce 12 moles of water in this reaction? ЗKOH + H3PO4 K3PO4 + 3H20
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!