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
Nataliya [291]
3 years ago
6

Which of the following is an example of a chemical change? *

Chemistry
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

hydrogen and oxygen to form water

You might be interested in
Which of the compounds in the table below is listed in the wrong colum?
Sveta_85 [38]

Answer: C

Explanation: This is because of a nice thing called guessing

5 0
3 years ago
Which compound (s) has(have) a molecular ion at 117 and a peak at 1720 cm-1 in its IR spectrum?
LenaWriter [7]

Answer:

Ethyl Acetate with a chemical configuration of : CH3CO2CH2CH3

Explanation:

Ethyl Acetate has a density of 902 kg/m³, molar mass of 88.11 g/mol and posses a boiling point of 77.1 °C.

It is to be understood that ethyl acetate is the  ester of ethanol and it is mostly produced in mass production and most especially used in the production of domestic materials especially materials like glue, efostics and dissolving agent. This is a highly toxic and flammable substance. However colorless and possess a sweet smell, it can be highly poisonous when ingested.

3 0
3 years ago
You take a bottle of soft drink out of your refrigerator. The contents are liquid and stay liquid, even when you shake them. Pre
inna [77]

Answer:

The correct answer is due to the difference in pressure inside and outside the bottle.

Explanation:

Liquids have melting and boiling points that depend on pressure and temperature. The pressure inside the bottle is higher than the pressure outside. This causes the melting point to drop, making the liquid freeze at a lower temperature than if it were at atmospheric pressure, and therefore has a lower temperature than it would freeze at atmospheric pressure. When the bottle is uncovered, the liquid becomes an atmospheric pressure, and due to the temperature acquired when the bottle was closed the liquid freezes.

Have a nice day!

3 0
3 years ago
Predict the molecular geometry about S in the molecule SO2
Inga [223]

Hey there!:


SO2 a Bent molecular shape. The lone pair of electrons is at the top of the SO2 molecule. The SO2 bond angle will be 120 degrees since it has a Bent molecular geometry.


Hope that helps!

5 0
3 years ago
Read 2 more answers
Please help this is due tonight
Elenna [48]
4. the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages

5. Hormones are released from the endocrine glands

6. a. neck
b. Chest

7. help regulate important functions, such as growth, blood pressure and reproduction; it is small and small and bean shaped.

8. produces hormones that regulate the body's metabolic rate controlling heart, muscle and digestive function, brain development.

9. regulate your metabolism, immune system, blood pressure, respond to stress etc.

10. “enzymes” - break down sugars, fats, and starches

11. cells are unable to use glucose (can’t break down sugar to use as energy)
5 0
3 years ago
Other questions:
  • Which natural methods remove CO2 from the atmosphere?
    7·2 answers
  • In the following unbalanced chemical reaction, what belongs in the blank? C8H18 + O2à CO2 + H2O + _________ A. CO B. CO3 C. ener
    15·2 answers
  • Are normal salts acidic, basic or neutral salt?
    14·1 answer
  • Which group of nuclear emissions is listed in order of increasing charge?
    9·2 answers
  • A 5.40 mL sample of an H3PO4 solution of unknown concentration is titrated with a 5.000×10−2 M NaOH solution. A volume of 7.02 m
    12·1 answer
  • The reaction below is at dynamic equilibrium. mc004-1.jpg Which statement is true for the equilibrium system? The concentration
    13·2 answers
  • How do I answer the question in bold? Thank you!
    15·1 answer
  • Write the molecular, ionic, and net ionic equations for the reaction of Sr(NO3)2(aq) and Li2SO4(aq).
    10·1 answer
  • What do alkali metals do not include
    6·1 answer
  • Which method of separation would be most appropriate for separating a mixture of water and alcohol?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!