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
svp [43]
3 years ago
6

8.13 x 10^6J to kcal

Chemistry
1 answer:
Vesnalui [34]3 years ago
6 0

Answer:

1 943.11663 kilocalories

Explanation:

You might be interested in
A solution contains 0.10 m sodium cyanide and 0.10 m potassium hydroxide. solid zinc acetate is added slowly to this mixture. wh
Brrunno [24]
1) Zn(CH₃COO)₂(s) + 2KOH(aq) = Zn(OH)₂(s) + 2CH₃COOK(aq)

Ksp{Zn(OH)₂}=1.2*10⁻¹⁷

2) Zn(CH₃COO)₂(s) + 2NaCN(aq) = Zn(CN)₂(s) + 2CH₃COONa(aq)

Ksp{Zn(CN)₂}=2.6*10⁻¹³


Ksp{Zn(OH)₂}<Ksp{Zn(CN)₂}

Zn(OH)₂ precipitates first

6 0
3 years ago
When does phenolphthalein turn pink?
Gelneren [198K]
Phenolphthalein<span> is often used as an indicator in acid–base titrations. For this application, it </span>turns<span> colorless in acidic solutions and </span>pink<span> in basic solutions. </span>Phenolphthalein<span> is slightly soluble in water and usually is dissolved in alcohols for use in experiments.

</span>
7 0
3 years ago
Read 2 more answers
Organisms that breakdown waste and dead organisms and return the raw materials to the environment is called
just olya [345]
Decomposer, decomposers include fungous, bacteria, worms. They break down trash and bad things and concert it to soil.
4 0
3 years ago
The table below provides some information about an unidentified element. Based on this information, the unidentified element is
Leona [35]

In the physical properties, it is mentioned that the element has 4 valence electrons. The elements in the periodic table are arranged such that, the number of valence electrons present in the neutral atoms belonging to a particular group  is equal to the group number.

Thus, the unidentified element can be best classified as a nonmetal in period 4

Ans C)

5 0
3 years ago
What is the mass of KNO3 should be used to prepare 2.00 L of a 0.700 M solution?
Dmitry [639]

Answer:

141.4g

Explanation:

Moles= conc. ×vol

m/M = 0.7×2

m/101 = 0.7×2

m= 141.4g

3 0
3 years ago
Other questions:
  • When it became too hot to stay outside during a summer birthday party, the party was moved inside to an air-conditioned porch. I
    12·1 answer
  • PLEASE I REALLY NEED ANSWER REAL QUICK
    9·1 answer
  • What is the bond between Ca and Cl
    13·1 answer
  • In a solution with a pH of 4, the [OH-] is:<br>1x 10-10<br>1x 10-4<br>10<br>- 1x 10-8<br>​
    15·1 answer
  • 1: The atomic number of an atom is equivalent to which of the following?
    13·1 answer
  • What substance has a melting point of 0 and a boiling point of 100
    8·2 answers
  • Please help on 44. /45./ 46./47,
    7·1 answer
  • What is the molarity of the resulting solution when 23.640 g of Mn(ClO4)2 · 6 H2O are added to 200.0 mL of water? WebAssign will
    13·1 answer
  • A block of iron has a mass of 826 g. What is the volume of the block of iron whose density at 25°C is 7.9 ?
    7·1 answer
  • How many moles of Hydrogen gas will be produced if you start with 2.5 moles of Magnesium and an excess of Hydrochloric Acid give
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!