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
vesna_86 [32]
2 years ago
15

Someone help this is so hard

Chemistry
2 answers:
tigry1 [53]2 years ago
7 0

i need points

Explanation:

xxTIMURxx [149]2 years ago
5 0
Hi there, actually the image that you have provided is completely blank.
Also, can you mark my answer as the brainliest answer?
Thanks and happy new year!
You might be interested in
The lead pipe has a mass of 200 g, how much will be left after 6 months?
kumpel [21]

Answer:

33g

Explanation:

200 divided by 6=33.33

5 0
3 years ago
At constant temperature, when the volume of a gas is decreased, what happens to its pressure? Select one: a. It increases. b. It
natulia [17]

Answer:

The answer would be

a. it increases

3 0
3 years ago
Identify which result of a physical rather than a chemical change
Pani-rosa [81]

Explanation:

A physical change is change that alters the physical properties of matter especially its form and state.

In many cases, the change is easily reversible.

Examples are change of state such as boiling, melting, freezing, condensation, sublimation e.t.c

A chemical change is one in which a new kind of matter is formed. It is always accompanied by energy changes.

Examples are combustion, rusting , precipitation, milk souring.

  • Chemical changes are irreversible
  • Physical changes do not lead to the formation of new kinds of matter.
  • Most physical changes requires little energy.

You can use this knowledge to solve your problem

learn more:

Chemical change brainly.com/question/9388643

#learnwithBrainly

8 0
3 years ago
How many moles are in 272 grams of hydrogen peroxide (H2O2) ?
Strike441 [17]

Answer:

8 moles

Explanation:

When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.

Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:

  • 272 g ÷ 34 g/mol = 8 mol

There are 8 moles in 272 grams of hydrogen peroxide.

7 0
2 years ago
Why do atoms gain or lose electrons?
Aleksandr [31]

Answer:kapil

Explanation:

Atoms lose electrons, if an electron gets more energy than then binding energy of the electron. This may be because of a collision with a charged particle or because of absorbtion of a photon. In a metal, there are just other positive charges nearby. The electron is not lost, but shared.

6 0
3 years ago
Other questions:
  • The characteristics that best describe the tail of a phospholipid molecule are _____?
    13·2 answers
  • Describe thomson and millikan contributions to atomic theory
    8·2 answers
  • Which substance below has the greatest mass?
    8·1 answer
  • Which reaction is characterized as catabolic? glucose formation from glycerol pyruvate formation from glucose hemoglobin formati
    11·1 answer
  • What is the definition of diploid
    14·1 answer
  • Compare the following in the three states of matter
    9·1 answer
  • Read the Casestudy Conservation Planning and summarize it - 5 sentence minimum.
    8·1 answer
  • If two kids kick the ball at the same time what is the motion on the ball will do?​
    7·1 answer
  • If an object has a mass of 250 grams and a volume of 5 milliliters, what is the density of the object?
    10·1 answer
  • 1. solvents<br> What type of solid waste is solvents?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!