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
Vesna [10]
2 years ago
14

Select the correct answer.

Chemistry
1 answer:
kirza4 [7]2 years ago
4 0

Answer: A. It indicates the direction in which the reaction occurs.

You might be interested in
Why is current more dangerous than voltage?
Serga [27]
The higher the current, the more likely it is lethal. Since current is proportional to voltage when resistance is fixed (ohm's law), high voltage is an indirect risk for producing higher currents.
6 0
3 years ago
Read 2 more answers
Which of the following models a synthesis reaction?
Nuetrik [128]

Answer: D

Explanation: i’m right

5 0
3 years ago
How many atoms of hydrogen are in ethanol (C2H5OH)?
EleoNora [17]
So we have: 1 C2H5OH + _ O2 -> 2 CO2 + _ H2O Step 3: The only molecule on the right that is left is H2O. We start with 6 hydrogen atoms<span> on the left.</span>
6 0
3 years ago
Justify air is a mixture not a compound
Andreas93 [3]
A compound has to be chemically bonded, however, air is not chemically bonded.
This can be proven by freezing air. By freezing air, it yields different liquids at different temperature. Liquid nitrogen has a different boiling point than liquid oxygen.
If air was a compound, they would all have a single boiling point and a single freezing point.


Hope this helps :)
4 0
3 years ago
Read 2 more answers
A gas that was cooled to 200 Kelvin has a volume of 65.8 L. If its initial volume was 132.4 L, what was its initial temperature?
Mandarinka [93]

Answer:

Initial temperature, T1 = 99.4 Kelvin

Explanation:

<u>Given the following data;</u>

  • Initial volume, V1 = 65.8 Litres
  • Final temperature, T2 = 200 Kelvin
  • Final volume, V2 = 132.4 Litres

To find the initial temperature (T1), we would use Charles' law;

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles' law is given by the formula;

\frac {V}{T} = K

\frac {V_{1}}{T_{1}} = \frac {V_{2}}{T_{2}}

Making T1 as the subject formula, we have;

T_{1} = \frac {V_{1}T_{2}}{V_{2}}

Substituting the values into the formula, we have;

T_{1} = \frac {65.8 * 200}{132.4}

T_{1} = \frac {13160}{132.4}

<em>Initial temperature, T1 = 99.4 Kelvin</em>

6 0
3 years ago
Other questions:
  • A compound is found to contain 47 percent potassium 14.5 percent carbon and 38.5 percent oxygen by the way the molar mass of the
    10·1 answer
  • What is the oxidation state of each element in the compound CaS04? Include +or - in your answer as appropriate
    12·1 answer
  • 5
    15·1 answer
  • "The combustion of ethylene proceeds by the reaction C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(g) When the rate of disappearance of O2 i
    8·1 answer
  • I am doing an experiment that calls for 200g of H2SO4. How many moles of H2SO4 is this?
    10·1 answer
  • Why is it that the waves are close to shore during the night when the moon is out, and far away during the day
    14·1 answer
  • Base A dissociates 25% in water. Base B dissociates 50%. Base C dissociates
    7·1 answer
  • HELP ME PLEASE ASAP IVE POSTED THIS LIKE FIVE TIMES AND NO ONES RESPONDED PLEASE!!!!!!!!!!
    9·2 answers
  • The temperature at which a solid melts is the same as the temperature at which its liquid form solidifies (true or false)​
    5·2 answers
  • Define solute and solvent ​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!