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
gladu [14]
3 years ago
6

THIS IS A SCIENCE QUESTION

Chemistry
2 answers:
Viktor [21]3 years ago
5 0

Answer:

A

Explanation:

Think of it like an hot air balloon

Hot air makes it rise and cool air sinks it downwards

MissTica3 years ago
4 0

Answer:

A

Explanation:

Hot air is less dense therefore it rises. Cold air is more closely packed therefore it is more dense. Less dense things rise while more dense things sink.

You might be interested in
An ionic bond involves the.....
Svetllana [295]
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds
5 0
3 years ago
Read 2 more answers
What is the mass of 4.5 x 10^22 molecules of hydrogen peroxide (H2O2)? Show your work in the space below.
valentinak56 [21]

Given :

Number of molecules of hydrogen peroxide, N = 4.5 × 10²².

To Find :

The mass of given molecules of hydrogen peroxide.

Solution :

We know, 1 mole of every compound contains Nₐ = 6.022 × 10²³ molecules.

So, number of moles of hydrogen peroxide is :

n = \dfrac{N}{N_a}\\\\n = \dfrac{4.5\times 10^{22}}{6.022\times 10^{23}}\\\\n = 0.0747 \ moles

Now, mass of hydrogen peroxide is given as :

m = n × M.M

m = 0.0747 × 34 grams

m = 2.54 grams

Hence, this is the required solution.

6 0
2 years ago
Helium decays to form lithium
Fantom [35]
Not sure if this was a true or false but ok great job it is true. :)
5 0
3 years ago
Read 2 more answers
how many grams of solid lithium must be added to liquid after in order to obtain 15.0 L of hydrogen gas at STP?
alexdok [17]

Answer:

9.29g

Explanation:

your welcome

3 0
3 years ago
PLEASE HELP!!!<br><br><br><br> How many grams are in 10.11 moles of sucrose?
Sloan [31]
There would be 67 left because you do
5 0
2 years ago
Other questions:
  • Uranium-234 decays to lead-214 through a series of alpha decays. Which of the following is the total number of alpha particles e
    7·1 answer
  • If 72^x=26, what is the value of x?
    6·1 answer
  • PLEASE HELP The basic units of measurement for volume, length, and weight in the metric system are the?
    14·1 answer
  • is a cation or anion. In the second row, write the symbol for the ion that an atom of fluorine is mostly likely to form and then
    7·2 answers
  • Which term describes a substance that increases the concentration of hydroxide (OH-) ions in solution? *
    7·2 answers
  • Which structure is found in plant cell but not in an animal cell ?
    10·1 answer
  • A given atom has 3 protons, 4 neutrons, and 3 electrons. Describe how you can use those three values to describe the structure,
    14·1 answer
  • When is national chocolate milkshake day?
    8·1 answer
  • A blue whale has a length of 28,578 millimeters. What is the length of a blue whale in kilometers? Show your work below by writi
    8·1 answer
  • A solution is prepared by dissolving 117 grams of salt (NaCl) in 250 milliliters of water (H₂O). What is
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!