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
slega [8]
3 years ago
11

I + I -----> I2 + 146.3 kJ Is this reaction exothermic or endothermic?

Chemistry
1 answer:
elixir [45]3 years ago
6 0
This reaction is endothermic!
You might be interested in
Yall i think if someone can solve ths problem would save my life. its really URGENT
andre [41]
Cutxitxrxuyrxxydxdyxt
6 0
3 years ago
A natural atom possesses the atomic number of 13 and a atomic mass of 27. Three electrons are lost. From what region of the atom
Anarel [89]

Answer:

The electrons are lost from the valence shell (outermost electron shell) of the atom.

Explanation:

This is able to be inferred not only because valence electrons being lost first is a trend but also because the atom in question has actually 3 valence electrons (13-2-8 = 3).

7 0
3 years ago
The melting point of the metal potassium is 63.5c, while that of titanium is 1660c. what explanation can be given for this great
kiruha [24]

The melting point of potassium = 63.5^{0}C

Melting point of titanium = 1660^{0}C

Titanium has a stronger metallic bonding compared to potassium. Titanium being a transition metal has greater number of valence electrons (4 valence electrons) contributing to the valence electron sea compared to potassium which has only one valence electron. The atomic size of Titanium much lower than that of potassium, so the bonding between Titanium atoms is stronger than that of potassium. Hence, the melting point of Titanium is much higher than that of potassium.

3 0
3 years ago
Write 2,469,100 in Engineering Notation with 3 significant figures.
Gala2k [10]

Answer: 2.47\times 10^{6}

Explanation:

Engineering notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form times 10 raise to the power.  It is similar to the scientific notation but in engineering notation, the powers of ten are always multiples of 3.

The engineering notation written in the form:

a\times 10^b

where,

a = the number which is greater than 0 and less than 999

b = an integer multiple of 3

Now converting the given value of 2,469,100 into engineering notation, we get 2.47\times 10^{6}

Hence, the correct answer is, 2.47\times 10^{6}

6 0
3 years ago
What is Potassium Oxalate name formula?
melisa1 [442]

Answer:

formula pottasium Oxalate C2k204

Explanation:

C2k204

6 0
3 years ago
Other questions:
  • At what temperature is the following reaction at equilibrium? 2Na, O, + 2H,0 + 4NaOH + O, AH° = -109 kJ, ASO = -133.2 J/K
    7·1 answer
  • What do you think a chemical change is?
    11·1 answer
  • A 5.0 gram sample of Ag2SO4, will dissolve in 1.0 L of water. Calculate the solubility product
    12·1 answer
  • The molecules CH4 and CH3Cl both have tetrahedral shapes. Why is CH4 nonpolar whereas CH3Cl is polar?
    11·2 answers
  • What would be the voltage (Ecell) of a voltaic cell comprised of Cr (s)/Cr3+(aq) and Fe (s)/Fe2+(aq) if the concentrations of th
    14·1 answer
  • What is a substance​
    6·1 answer
  • If the solution is acidic, which ion is found in greater concentration?
    8·1 answer
  • (07.01 MC)
    11·1 answer
  • Bio-chemisty of protain​
    7·1 answer
  • Why don't we use the plutonium (Pu) from reprocessed/used nuclear fuel? There are 2 correct answers. (this is for my earth scien
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!