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
Sergio [31]
3 years ago
13

PLS HELP ASAP ON BOTH

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
7 0
19. Mesosphere I think

20. True not sure though
lesya692 [45]3 years ago
3 0

Answer:

mesosphere

I hope this helps a little bit.

You might be interested in
If an element has 3 valence electrons, what charge will likely form on its ion? Hint: It will lose those electrons. What happens
guajiro [1.7K]

Answer:

The answer to your question is: letter A

Explanation:

If an atom lose 3 electrons its charge will be positive, it will be +3

6 0
3 years ago
Match each element with the element that is most similar to it. If you don’t know the answer, use this periodic table to help yo
yan [13]

Answer:

Lithium - Potassium

Carbon - Silicon

Fluorine - Bromine

Oxygen - Sulfur

Explanation:

I hope this helps!! :3

5 0
3 years ago
URGENT is... Mg(ClO3)2
stiv31 [10]

That's a ionic compound because it has a metal and polyatomic parts within the chemical formula.

6 0
3 years ago
Read 2 more answers
When 3.00 g of sulfur are combined with 3.00 g of oxygen, 6.00 g of sulfur dioxide (SO2) are formed. What mass of oxygen would b
bazaltina [42]
Actually, we can answer the problem even without the first statement. All we have to do is write the reaction for the production of sulfur trioxide.

2 S + 3 O₂ → 2 SO₃

The stoichiometric calculations is as follows:

6 g S * 1 mol/32.06 g S = 0.187 mol S
Moles O₂ needed = 0.187 mol S * 3 mol O₂/2 mol S = 0.2805 mol O₂
Since the molar mas of O₂ is 32 g/mol,
Mass of O₂ needed = 0.2805 mol O₂ * 32 g/mol = 8.976 g O₂
4 0
3 years ago
What is true of all mass and volume of all floating objects
GarryVolchara [31]
If the density is higher than water than the object will sink
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is a hygrometer?
    11·1 answer
  • A neutron breaks down to form ?
    11·1 answer
  • CaCl2 + Na2CO3 → CaCO3 + 2 NaCl
    7·2 answers
  • PLEASE ANSWER
    11·1 answer
  • Which solute forms a saturated solution when 36 g of it are dissolved in 25 g of water at 20°C?
    15·1 answer
  • With a force of 5 newtons, Amanda pushes the stack of books to the right. At the same time, Jeremy, her little brother, pushes t
    5·2 answers
  • How many moles are in 45.8 g of calcium nitrate, Ca(NO3)2? PLEASE HELP
    12·1 answer
  • Bill bye states that “ as more and more species disappear, it is harder and harder to keep the ecosystem in balance because we d
    10·1 answer
  • Which of the following is an example of a molecule with different atoms?
    6·2 answers
  • If 5.00 L of argon gas is at 0.460 atm and -123°C, what is the volume at STP?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!