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
Pavel [41]
3 years ago
14

Help with this please.

Chemistry
1 answer:
chubhunter [2.5K]3 years ago
6 0

Answer:

a

Explanation:

cause its a tell me if you get it right hsnsnsjsjsjsnanajaksks bshsjjssjjsjddjhs h sshheggduejnd uhh cig jsjdufudneidisjsjjshhshshshhzhshjdhdudjsjdjdjdjdjdjdjsjsjsjsjsjsjdjdjsiiddudjdjdjsjdjjdjduxixuxixxuchucucufididididjdhxuueudhh see h bj too yxhxuxjdjsjsu

You might be interested in
A worker at a nuclear power plant has noticed that his dosimeter alarm has
Sphinxa [80]

Answer:

Radiation is being released from the reactor.

Explanation:

( A P E X )

5 0
3 years ago
Plutonium-240 decays according to the function \[Q(t)=Q _{o}e ^{-kt}\] where Q represents the quantity remaining after t years a
marishachu [46]
To answer the question above, substitute the given values to the given equation,
                                   Q(t) = Q x e^-kt
  
                          12 grams = (36 grams) x e^(-0.00011)(t)

Solving for t gives t = 9,987.38 years or approximately equal to 9,990 years. Thus, the answer is letter C.












4 0
3 years ago
Read 2 more answers
A solution contains 0.115 mol h2o and an unknown number of moles of nacl. the vapor pressure of the solution at 30°c is 25.7 tor
Valentin [98]
According to Raoult's low:
We will use this formula: Vp(Solution) = mole fraction of solvent * Vp(solvent)
∴ mole fraction of solvent = Vp(Solu) / Vp (Solv)
when we have Vp(solu) = 25.7 torr & Vp(solv) = 31.8 torr 
So by substitution:
∴ mole fraction of solvent = 25.7 / 31.8 =0.808 
when we assume the moles of solute NaCl = X 
and according to the mole fraction of solvent formula:
mole fraction of solvent = moles of solvent / (moles of solvent + moles of solute)
by substitute:
∴ 0.808 = 0.115 / (0.115 + X)
 So X (the no.of moles of NaCl) = 0.027 m
8 0
3 years ago
How many miles of H2O are produced when 0.322 mol of octane is burned?
victus00 [196]

Answer:

alot of h2o

Explanation:

8 0
3 years ago
The decomposition of methanol, ch3oh(g), to form ch4(g) and o2(g) absorbs 252.8 kj of heat per mole of oxygen formed. write a ba
Svetllana [295]
The thermochemical equation is the chemical equation including the net change of enthalpy (heat).

The chemical equation for the decomposition of methanol to form methane and oxygen is:

2CH3OH --> 2CH4 + O2

The thermochemical equation is:

2CH3OH ---> 2CH4 + O2  - 252.8 kJ

Note that the heat is placed as negative at the right side because it is absorbed during the decomposition, so the environment will have 252.8 kJ less per each mole of O2 produced.

You can equivalently write:

2CH3OH + 252.8 kJ --> 2CH4 + O2
4 0
3 years ago
Other questions:
  • Why is nucleus configured the brain of the cell
    11·1 answer
  • Which intermolecular force would cause the highest boiling point?
    6·1 answer
  • What is the electron configuration of beryllium?
    6·1 answer
  • Write a chemical equation showing how this is an acid according to the arrhenius definition. express your answer as a balanced c
    13·1 answer
  • What system is a kidney stone?
    14·2 answers
  • How would you describe a crazy lab like burning up, explosion. Need more examples at least 5 or any answer. Thanks
    13·1 answer
  • Read the Casestudy Conservation Planning and summarize it - 5 sentence minimum.
    8·1 answer
  • Look at the image below:
    6·1 answer
  • What is the concentration in moles per litre of:
    9·1 answer
  • Hydrochloric Acid would best be described as a:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!