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
dem82 [27]
3 years ago
9

HELPPP PLEASE !/!/!/!/!/!/!/!

Chemistry
1 answer:
eduard3 years ago
6 0

Answer:

the second question should be along the staircase

You might be interested in
What is the pressure in a 5.00 L tank with<br> 7.10 moles of oxygen at 39.3 °C?
Katena32 [7]

Answer:

36.4 atm

Explanation:

To find the pressure, you need to use the Ideal Gas Law. The equation looks like this:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = constant (0.0821 L*atm/mol*K)

-----> T = temperature (K)

Before you can plug the given values into the equation, you first need to convert Celsius to Kelvin.

P = ? atm                         R = 0.0821 L*atm/mol*K

V = 5.00 L                       T = 393 °C + 273.15 = 312.45 K

n = 7.10 moles

PV = nRT

P(5.00 L) = (7.10 moles)(0.0821 L*atm/mol*K)(312.45 K)

P(5.00 L) = 182.130

P = 36.4 atm

8 0
2 years ago
How is the Hvap used to calculate the mass of liquid boiled by 1 kJ of energy?
coldgirl [10]
The heat used in phase changes is calculated by multiplying the mass of the substance by the energy of the phase change. In this case, for liquid to boil, we would find total heat by multiply the mass of liquid by the latent heat of vaporization (Hvap). If we are instead given the Hvap and the total heat of 1 kJ, we would divide 1 kJ by the Hvap (which is usually in kJ/kg) to get the mass of liquid boiled (in kg).
6 0
3 years ago
How to differ mixture and compound? What are their differences? ​
Roman55 [17]

Explanation:

"Compound: A substance that is made up of more than one type of atom bonded together. 

Mixture: A combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties."

- Libre Texts

8 0
2 years ago
Read 2 more answers
A 5.0-kg box is pushed across the floor with a force of 32 N. What is the frictional force on the box if the box's acceleration
Slav-nsk [51]
From\ 2nd\ Newton\ Law\ resultuant\ force: \\\\\ F_R=m*a=5kg*3,6\frac{m}{s^2}=18N\\\\&#10;F=32N\\\\&#10;F_f- friction\ force\\\\&#10;F_R=F-F_f\\\\&#10;F_f=F-F_R=32N-18N=14N\\\\Friction\ force\ is\ equal\ to\ 14\ N.
3 0
4 years ago
Read 2 more answers
What is the total number of atoms in the molecule HNO3?​
melomori [17]

Answer:

We know that, composition of HNO3 is Hydrogen, Nitrogen and oxygen. Total number of atoms = 3+1+1=5 atoms are present in 1 molecule of HNO3.

5 0
3 years ago
Other questions:
  • What is the mass of 1.0 x 10-3 mole of Zn? 3.9 x 1022 0.065 0.000015
    14·2 answers
  • The only large land mass(es) not part of a sovereign state is/are
    14·1 answer
  • Calculate the molarity of a solution with 233.772g sodium chloride dissolved in 2,000mL of water
    9·1 answer
  • Which solution is a homogeneous mixture?
    5·1 answer
  • Briefly describe the movement of water through the water cycle
    9·2 answers
  • Group the elements into pairs that would most likely exhibit similar chemical properties. It does not matter which pair of eleme
    10·1 answer
  • The factor that has the biggest effect on the climate of a region is generally _____.
    14·1 answer
  • Anyone know the answer to this one?
    15·1 answer
  • For each of the salts below, match the salts that can be compared directly, using Ksp values, to estimate solubilities.
    13·1 answer
  • What happens to most of the Energy that an organism gets from consuming food? <br><br>Help please​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!