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
faltersainse [42]
3 years ago
7

Chất có ở đâu ? nước tự nhiên là chất hay hỗn hợp

Chemistry
1 answer:
Lynna [10]3 years ago
4 0

Answer:

Water, H2O, is a pure substance, a compound made of hydrogen and oxygen. Although water is the most abundant substance on earth, it is rarely found naturally in its pure form. Most of the time, pure water has to be created. Pure water is called distilled water or deionized water.

You might be interested in
Sorry it’s for science
garik1379 [7]

Answer:

A

Explanation:

Density/Formula

\rho ={\frac {m}{V}}

\rho = density

m = mass

V = volume

5 0
3 years ago
The names of the components FeS, NaCl, and Al(3)O(2) all end in the suffix.
anastassius [24]

Answer:

A) -ide

Explanation:

FeS = iron(II) sulfide or ferrous sulfide

NaCl = Sodium chloride

Al(3)O(2) = Aluminium oxide

3 0
3 years ago
ANSWER ASAPP<br> What causes the motion of particles? And more energy equals what?
STALIN [3.7K]

Answer:

particles in solids are always vibrating (moving back and forth) in place the vibrational motion of particles in solids is kinetic energy heat makes the particles in a solid vibrate faster, giving them more kinetic energy faster-vibrating particles bump into one another more often and hit each other harder

4 0
3 years ago
What type of change occurs when rust on a nail a. chemical change b. physical change
Korvikt [17]

Answer:

Chemical change

Explanation:

The rusting of iron/a nail is a chemical change

Iron (Fe) and Oxygen (O) combine to create the compound Iron Oxide (Fe2O3), which is rust.

5 0
3 years ago
How does matter and energy cycle through an ecosystem?
Ostrovityanka [42]

Answer:

C

Explanation:

5 0
3 years ago
Other questions:
  • Why is sodium metal (very soft and can cut easily) stored under oil?
    14·1 answer
  • What is the volume of a gas 35 psi (like your car’s tire might require), if the gas had occupied 30 L at a pressure of 10 psi?
    15·1 answer
  • If 125 mg of Ar(g) is added to a 505-mL sample of Ar(g) at STP, what volume will the sample occupy when the conditions of STP ar
    13·1 answer
  • The
    8·1 answer
  • PLZ HELP THIS IS ERGENT Which beaker has the least amount of thermal energy?
    14·1 answer
  • Gaseous ammonia chemically reacts with oxygen O2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of am
    6·1 answer
  • What are some good sex positions?
    14·2 answers
  • How many moles are in 28 grams of CO2?
    14·1 answer
  • Elements chemically combine in various ways to form most substances on Earth. These chemically combined elements are called ____
    8·2 answers
  • decide how to supersets these substances? If if is not possible, please write "cannot be separated" on the space provided​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!