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
alekssr [168]
3 years ago
5

Is Elisa getting the right amount of sleep??

Chemistry
1 answer:
fredd [130]3 years ago
5 0

Answer: Yes, because it’s between 8 and 10.

Explanation:

You might be interested in
Helppppppppppppppppppp
blagie [28]

Answer:

if i had to guess it would be D

Explanation:

Sorry if im wrong, but i wouldnt have any liquid on atleast one of them so i can compare and contrast the other coins to the regular 1p coins

3 0
3 years ago
Read 2 more answers
What heat is liberated in the formation of 10.0 grams of sulfur hexafluoride, SF6, from the elements sulfur and fluorine?
tensa zangetsu [6.8K]

Answer:

Q=-76.7kJ

Explanation:

Hello,

In this case, for such formation of sulfur hexafluoride, the standard enthalpy of formation is -1220.47 kJ/mol (data extracted from NIST database). Next, we compute the moles in 10.0 grams of sulfur hexafluoride as shown below:

n_{SF_6}=10.0gSF_6*\frac{1molSF_6}{146.06 gSF_6}=0.0685mol

Next, for the given energy, we compute the total heat that is liberated:

Q=-1220.47\frac{kJ}{mol}*0.0685 mol\\\\Q=-76.7kJ

Finally, we conclude such symbol has sense since negative heat is related with liberated heat.

Best regards.

8 0
3 years ago
The solubility of k2cr2o7 in water is 125 g/l at 20 °c. a solution is prepared at 20 °c that contains 6.0 grams of k2cr2o7 in 50
Pachacha [2.7K]
The solubility is the guide to the maximum amount of solute that can be dissolved in a certain amount of solvent at a certain temperature to make a saturated solution. Any amount less than this would result to unsaturated, while any amount more would result to saturated.

6 g/(50 mL * 1 L/1000 mL) = 120 g/L

Since it is less than the solubility of 125 g/L, then <em>this solution is unsaturated</em>.
5 0
3 years ago
A decomposition reaction, with a rate that is observed to slow down as the reaction proceeds, has a half-life that does not depe
mr_godi [17]

Answer: A plot of the natural log of the concentration of the reactant as a function of time is linear.

Explanation:

Since it was explicitly stated in the question that the half life is independent of the initial concentration of the reactant then the third option must necessarily be false. Also, the plot of the natural logarithm of the concentration of reactant against time for a first order reaction is linear. In a first order reaction, the half life is independent of the initial concentration of the reactant. Hence the answer.

3 0
3 years ago
What is 1 Oz equal to in grams?
lakkis [162]
1 Oz is 28.3495 grams

hope this helps!
4 0
3 years ago
Read 2 more answers
Other questions:
  • Kobe is testing whether 100 g of substance A, 100 g of substance B, or 100 g of substance C produces more oxygen in a chemical r
    9·2 answers
  • Why does naphthol react with sodium hydroxide?
    13·1 answer
  • Which of the following elements are characterized by having full outermost s and p
    15·1 answer
  • Co2(g)+H20+148Kcal----&gt;H2Co3 Endotérmica o exotérmica
    8·1 answer
  • How do I balance coefficient equations
    11·2 answers
  • What is the electron configuration for Cl? orbital notation for Cl?
    10·1 answer
  • Which of the following is/are true?
    6·1 answer
  • If an atom has 4 protons, 5 neutrons, and 4 electrons, what would its atomic mass be?
    15·1 answer
  • Nancy rides her bike 114.8 miles in 8.2 hours. What is her average speed in miles per hour
    7·2 answers
  • A 5-kg chunk of amluminum and a 5-kg block of silver that are the same temperature have the same thermal energy true or false
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!