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
Dmitry_Shevchenko [17]
3 years ago
15

What is revealed in the reaction ca2+(aq) + 2oh-(aq) ca(oh)2(s), deltah + 16.71?

Chemistry
2 answers:
ch4aika [34]3 years ago
8 0
The given reaction has a positive value of enthalpy change which means that it is an endothermic reaction. The heat energy flows into the reaction as it proceeds. So, to allow this reaction to occur heat should be supplied to the substances.
Veronika [31]3 years ago
8 0

The reaction is endothermic - apex


You might be interested in
If an ultraviolet photon has a wavelength of 77.8 nm calculate the energy of one mole ultraviolet photon.
DerKrebs [107]

Answer:

Explanation:

E = (hc)/(λ)

E = (6.624x10^(-27))Js x ((3×10^8)ms^(-1)) /

(77.8x10^(-9)m)

E = 2.55 x 10^(-11) J

7 0
2 years ago
a guy walks into a bar and sees a non-linear person. he says hey wt y=mx+b is this? he threw a sploddy gun grenade in the place.
Elan Coil [88]
Um I literally don’t know
8 0
2 years ago
Read 2 more answers
Write the chemical formula for
nataly862011 [7]
Ba2Cl
NaS2
The numbers are in subscript
6 0
3 years ago
Read 2 more answers
What mineral is the hardest known substance in nature?
shusha [124]
The mineral that is the hardest known substance in nature is a diamond. 
Hope this helps. 



3 0
3 years ago
Read 2 more answers
if an object has a mass of 60 grams in a volume of 120 cm3 then calculate the density would this object sink or float
Ivanshal [37]

Answer: 0.5 g/cm^3

Density equals mass divided by volume so..

60/120 is 0.5 g/cm^3

7 0
2 years ago
Other questions:
  • 23. Which of the following describes ionic bonds?
    15·2 answers
  • Many manufacturing processes involve chemical reactions that reach equilibrium. Why would chemists adjust conditions to favor th
    5·2 answers
  • Select all the correct images, select the two atomic models that belong to the same element.
    11·1 answer
  • you are given 500 mL of a 5M stock solution of ammonium chloride but for your experiment, you only need 100 mL of a 0.65M soluti
    6·1 answer
  • What is the atom number of an element that has six protons and eight neutrons?
    10·1 answer
  • How does ground water become polluted
    5·2 answers
  • How does the phase of water affect its specific heat capacity?
    12·1 answer
  • Which of the following is an lnvertebrates animal?​
    9·2 answers
  • How are mutations different? Provide examples.
    5·2 answers
  • I need help with this please!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!