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
SpyIntel [72]
3 years ago
9

PLEASEEEE ANSWERR 15 POUNTS

Chemistry
2 answers:
LekaFEV [45]3 years ago
7 0

Answer:

c

Explanation:

Lina20 [59]3 years ago
5 0

Answer:

240

Explanation:

15 POUNTS 240

You might be interested in
When Luis burns wood in a campfire, the particles in the wood break down and energy is released. What type of energy does the wo
matrenka [14]

Answer:

chemical energy is stored in the wood before combustion.

8 0
3 years ago
What is the <br> formula for gunpowder
mrs_skeptik [129]

Here is the chemical equation for gun powder, in it’s simple form:

<span>2 KNO3 + S + 3 C → K2S + N2 + 3 CO2.</span>

This is the same simplified formula, only balanced:

<span>10 KNO3 + 3 S + 8 C → 2 K2CO3 + 3 K2SO4 + 6 CO2 + 5 N2.</span>

3 0
3 years ago
The total pressure of gases a, b, and c in a closed container is 4.1 atm. if the mixture is 36% a, 42% b, and 22% c by volume, w
Natali [406]

 The  partial  pressure of  gas C  is 0.902  atm


  calculation

partial pressure of gas c  =[( percent by volume of  gas   C /  total  percent)   x total pressure]


percent  by  volume of gas C= 22%

Total   percent  = 36% +42%  + 22%  = 100 %

Total  pressure  =  4.1 atm


partial  pressure  of gas C  is therefore =  22/100 x 4.1 atm = 0.902  atm

3 0
3 years ago
Read 2 more answers
The transfer of a section of DNA from one organism into the DNA of another organism by scientist is called
denpristay [2]
Transgenetics

hope this helps!
5 0
3 years ago
Together oxygen and nitrogen comprise what percentage of the atmosphere
Charra [1.4K]
Oxygen is 21% and nitrogen is 78% so combined is 99%
5 0
3 years ago
Other questions:
  • What volume does 4.53 moles of hydrogen at 1.78 atm and 301 K occupy
    12·2 answers
  • If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according
    6·2 answers
  • Which substance is needed in order for this biochemical reaction to occur?
    9·1 answer
  • Test (Speed, Velocity and Acceleration)
    14·1 answer
  • Why did you wrap test tube 2 and 5 in aluminium foil and not test tube 1 and 6?
    12·1 answer
  • Kinetic energy <br><br>definition:<br><br><br>sentence: ​
    6·1 answer
  • Which of these types of changes is a physical change?
    11·2 answers
  • Calculate the density of an object with a mass of 8g and a volume of 40mL *
    7·1 answer
  • BALANCE THIS EQUATION:<br> C4H10 + O2 = C02 + H20
    8·1 answer
  • Determine the ground-state electron configuration for each of the following elements: A. chlorine ______________________________
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!