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
Elden [556K]
3 years ago
7

The two systems that control your body functions are the

Chemistry
1 answer:
KatRina [158]3 years ago
5 0
c) nervous and endocrine system

Hope I helped! ( Smiles )
You might be interested in
If 50. 75 g of a gas occupies 10. 0 l at stp, 129. 3 g of the gas will occupy ________ l at stp.
NeX [460]

22.4L

of any gas contains 1 mol of that gas.

50.75g/10L*22.4L/1 mol= 113.68g/mol- this is the mole weight of your gas

1 mol/113.68g*129.3g=1.137403 mol

Set up a ratio

1.137403mol/x L=1 mol/22.4 L

X=25.477827L, or with sig figs, x=25.5L

8 0
2 years ago
Which statement applies to electronegativity?
EastWind [94]
I believe the answer would be A. Electronegativity increases across a period.
6 0
4 years ago
Read 2 more answers
At an elevated temperature, Kp=4.2 x 10^-9 for the reaction 2HBr (g)---> +H2(g) + Br2 (g). If the initial partial pressures o
Damm [24]

Answer : The partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

Explanation :

The partial pressure of HBr = 1.0\times 10^{-2}atm

The partial pressure of H_2 = 2.0\times 10^{-4}atm

The partial pressure of Br_2 = 2.0\times 10^{-4}atm

K_p=4.2\times 10^{-9}

The balanced equilibrium reaction is,

                                2HBr(g)\rightleftharpoons H_2(g)+Br_2(g)

Initial pressure    1.0×10⁻²       2.0×10⁻⁴      2.0×10⁻⁴

At eqm.            (1.0×10⁻²-2p)   (2.0×10⁻⁴+p)  (2.0×10⁻⁴+p)

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{H_2})(p_{Br_2})}{(p_{HBr})^2}

Now put all the values in this expression, we get :

4.2\times 10^{-9}=\frac{(2.0\times 10^{-4}+p)(2.0\times 10^{-4}+p)}{(1.0\times 10^{-2}-2p)^2}

p=-1.99\times 10^{-4}

The partial pressure of H_2 at equilibrium = (2.0×10⁻⁴+(-1.99×10⁻⁴) )= 1.0 × 10⁻⁶

Therefore, the partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

4 0
4 years ago
How does a catalyst speed up a chemical reaction
ser-zykov [4K]
By being an alternative route to the reaction with a lower activation energy.
5 0
3 years ago
Read 2 more answers
What mass of solid lead would displace exactly 234.6 liters of water?
eimsori [14]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The mass of solid lead would displace exactly 234.6 liters of water should be <span>2,674,440</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the oxidation number of chromium in dichromate ion, cr2o72-?
    7·1 answer
  • According to the kinetic theory as the volume of a gas increase
    13·1 answer
  • Express 0.5 mg/mL in ug/uL
    9·1 answer
  • It is best to say that marine debris _______.
    15·2 answers
  • Please help, lol :)) &lt;--------------
    8·1 answer
  • Which of the following metals are more reactive than mercury? Select all that apply
    13·2 answers
  • Argon is an inert gas give reason.​
    5·2 answers
  • Which of the following would be a clue that a rock is sedimentary?​
    15·2 answers
  • Under normal conditions, NaOH completely ionizes as: NaOH -&gt;
    12·2 answers
  • Lab: Half-Life Claim, Evidence, Reasoning: Lab Prompt Write 3 total sentences establishing your claim, giving your evidence from
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!