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
tester [92]
3 years ago
7

A substance freezes at -58 celcius. Therefore a substance melts at: ________________

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
4 0
-58 °C
The melting point is the same as the freezing point.
You might be interested in
Why the iron nail not rusted on a chemical to absorb water vapour​
Charra [1.4K]

Answer:

Thus there was no accumulation of ions on the nails, as the dissolved gases were already removed, hence no rust formation. In test tube C, a chemical was added to absorb the water vapour. We know that rust formation takes place when a metal is exposed to water vapour.

Explanation:i hope u have a wonderful night and stays safe

4 0
3 years ago
Think critically explain how biotic change in an ecosystem that has flooded?
Scorpion4ik [409]

Answer:

Organisms that do not live in water would either have to adapt, or they would die. Other water organisms might move into the ecosystem. Diseases that are waterborne might make a surge.

Explanation:

8 0
3 years ago
Melted rock can ooze out from below earths surface through a crack in the crust called a(n)?
Katen [24]
Melted rock can ooze out from below the earth's surface through a crack called a fault.
5 0
3 years ago
Helpppppppppp!!!!!!!!!​
professor190 [17]

Answer:

a

Explanation:

the solution is extremely acidic and will dissolve the zinc rod

3 0
3 years ago
Elimination of the pharmaceutical IV antibiotic gentamicin follows first-order kinetics. If the half-life of gentamicin is 1.5 h
Genrish500 [490]

Explanation:

The given data is:

The half-life of gentamicin is 1.5 hrs.

The reaction follows first-order kinetics.

The initial concentration of the reactants is 8.4 x 10-5 M.

The concentration of reactant after 8 hrs can be calculated as shown below:

The formula of the half-life of the first-order reaction is:

k=\frac{0.693}{t_1_/_2}

Where k = rate constant

t1/2=half-life

So, the rate constant k value is:

k=\frac{0.693}{1.5 hrs}

The expression for the rate constant is :

k=\frac{2.303}{t} log \frac{initial concentration}{concentration after time "t"}

Substitute the given values and the k value in this formula to get the concentration of the reactant after time 8 hrs is shown below:

\frac{0.693}{1.5 hrs} =\frac{2.303}{8 hrs} x log \frac{8.4x10^-^5}{y} \\ log \frac{8.4x10^-^5}{y} =1.604\\\frac{8.4x10^-^5}{y}=10^1^.^6^0^4\\\frac{8.4x10^-^5}{y}=40.18\\y=\frac{8.4x10^-^5}{40.18} \\=>y=2.09x10^-^6

Answer: The concentration of reactant remains after 8 hours is 2.09x10^-6M.

5 0
3 years ago
Other questions:
  • Indium has only two naturally occurring isotopes. the mass of indium-113 is 112.9041 amu and the mass of indium-115 is 114.9039
    10·1 answer
  • Which class of organic compound is least likely to be used as an organic solvent? aldehyde ketone alkyl halide ether
    9·2 answers
  • What do animals mean to you?
    10·1 answer
  • Which way of representing a molecule best shows its three-dimensional shape?
    15·1 answer
  • q=mcΔT. Given this equation find the change in temperature. q = 600 J, m= 25.0 g, c= 0.897 J/g°C. What is ΔT?
    14·1 answer
  • Where would you expect to find the 1H1H NMR signal of (CH3)2Mg(CH3)2Mg relative to the TMS signal
    7·1 answer
  • Which of the following ideas helps explain the factors that affect island colonization of and species richness for a region?
    13·1 answer
  • How many atoms are in .00 × 10-10 g Au
    15·1 answer
  • How is a doorbell an example of an electrical transformation
    15·1 answer
  • For the equilibrium that exists in an aqueous solution of nitrous acid (HNO2, a weak acid), the equilibrium constant expression
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!