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
Phoenix [80]
3 years ago
5

What evidence is there to show that changing sand to glass is a chemical change

Biology
2 answers:
ioda3 years ago
4 0
There is evidence that sand to glass is chemical change but it is also a physical change .<span />
egoroff_w [7]3 years ago
3 0
Sand and glass have different chemical formulas, so that means that the atoms are rearranged and this is a chemical reaction.
You might be interested in
Enzymes<br> How do catalyst enzymes affect chemical reactions?<br> Your answer
nikklg [1K]

Answer:

They affect chemical reactions by lowering the activation energy, thus speeding up the reactions.

5 0
2 years ago
In your own words, explain why theories cannot become laws. Include one example
KengaRu [80]
Theories cant become laws because they are just testable questions and opinions 
5 0
3 years ago
Given the formula D=M/V, a substance with a Density of 50 gm/cc, with a Volume of 10 cc, has a Mass of ___________
siniylev [52]

Answer:

A

500 cc

Explanation:

D= M/V

50 =M/10

M =50×10

=500 cc.

Hope it helped.

8 0
3 years ago
Building blokes of proteins are _____
gulaghasi [49]
The building blocks of protein are C. AMINO ACIDS.

Amino acids are made up of a center carbon atom bound positively to a charged amino group and a negatively charged carboxyl group and a side chain.

The primary structure of a protein is the sequence of an amino acids that are attached together by a peptide bond

The secondary structure of a protein,  the polypeptide is folded through the  mechanisms of amino acids rotating around bonds folding into a helix or a pleated sheet structure and stabilized by a hydrogen bond.
6 0
3 years ago
Thermal pollution affects only fish. Please select the best answer from the choices provided T F
notsponge [240]
False it affects everyone and anything. Global warming for example my friend :/
7 0
3 years ago
Read 2 more answers
Other questions:
  • In guinea pigs, black fur (B) id dominant over whte fur (b). Cross a heterozygous (hybrid) black guinea pig with a homozygous (p
    15·2 answers
  • Which life characteristic describe a long-term response to the environment
    14·2 answers
  • What is the complementary base sequence of the DNA strand if the template strand reads TTGCACG?
    13·2 answers
  • What are two social factors that affect population growth?
    12·1 answer
  • Do Meiosis and Mitosis occur in all organisms?
    9·1 answer
  • Bacteria are important in sewage disposal because they _____. A. Neutralize Sewage B. from Vacuoles In Sewage C. Digest Sewage D
    9·2 answers
  • 6. What is the average size of the exons you used to make the coding region? What is the average size of the introns in the gene
    5·2 answers
  • Biogeography is the study of the distribution of species in different regions through the history of life on Earth. The map belo
    7·1 answer
  • What stage of photosynthesis uses
    14·1 answer
  • Charlie is having trouble moving his arms and legs. Charlie’s doctor diagnoses him with amyotrophic lateral sclerosis (ALS). ALS
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!