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
AnnZ [28]
3 years ago
14

HELP!!! WILL RECEIVE BRAINLIEST!!!!! What is the independent variable

Chemistry
2 answers:
Vsevolod [243]3 years ago
5 0
An independent variable Is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable, In that case - 1. sulfate solution, 2. potassium iodide solution, 3. hydrochloric acid solution.
ycow [4]3 years ago
3 0
You kind of need to show more, but the independent variable would be something that you are changing to then measure the reaction, like the time left in for example.
You might be interested in
A cube has a mass of 42 grams and a volume of 15 cubic centimeters. What is it’s density?
deff fn [24]

Answer:

2.8g/cm³

Explanation:

Given parameters:

Mass of cube = 42g

Volume of cube  = 15cm³

Unknown:

Density of the cube  = ?

Solution:

Density is defined as the mass per unit volume of a substance. It is mathematically expressed as:

 Density  = \frac{mass}{volume}  

So;

 Density  = \frac{42}{15}   = 2.8g/cm³

6 0
3 years ago
a que grupo en la tabla periodica pertenece el magnesio, potasio, calcio, azufre, oxigeno y el cloro?
ladessa [460]

Answer:

Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Explanation:

4 0
3 years ago
PLS HELP what is 2x10^3 in long form
saul85 [17]

Answer:

2x1000 = 2000

Explanation:

10^3 = 10×10×10 = 1000

exponent , the ^3 means multiply the number by itself 3 times, if it was ^4, it would be 4 times and so forth.

another trick for 10s is just put the 1 and the exponents number of 0's after the 1. so in this case, put three 0's: 1,000

6 0
3 years ago
Read 2 more answers
Hunter drew a representation of the atoms of a gas. The illustration shows atoms moving freely at high speeds.
insens350 [35]

hunter did good wih the atoms of a gas

8 0
3 years ago
The cell potential of a redox reaction occurring in an electrochemical cell under any set of temperature and concentration condi
avanturin [10]

Answer : The actual cell potential of the cell is 0.47 V

Explanation:

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given redox reaction is :

Ni^{2+}(aq)+Zn(s)\rightarrow Ni(s)+Zn^{2+}(aq)

The balanced two-half reactions will be,

Oxidation half reaction : Zn\rightarrow Zn^{2+}+2e^-

Reduction half reaction : Ni^{2+}+2e^-\rightarrow Ni

The expression for reaction quotient will be :

Q=\frac{[Zn^{2+}]}{[Ni^{2+}]}

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now put all the given values in this expression, we get

Q=\frac{(0.0141)}{(0.00104)}=13.6

The value of the reaction quotient, Q, for the cell is, 13.6

Now we have to calculate the actual cell potential of the cell.

Using Nernst equation :

E_{cell}=E^o_{cell}-\frac{RT}{nF}\ln Q

where,

F = Faraday constant = 96500 C

R = gas constant = 8.314 J/mol.K

T = room temperature = 316 K

n = number of electrons in oxidation-reduction reaction = 2 mole

E^o_{cell} = standard electrode potential of the cell = 0.51 V

E_{cell} = actual cell potential of the cell = ?

Q = reaction quotient = 13.6

Now put all the given values in the above equation, we get:

E_{cell}=0.51-\frac{(8.314)\times (316)}{2\times 96500}\ln (13.6)

E_{cell}=0.47V

Therefore, the actual cell potential of the cell is 0.47 V

4 0
3 years ago
Other questions:
  • What are the three keys to keeping water clean? effective cleanup of oil and gasoline spills adding sediment to the water to red
    10·2 answers
  • How many grams are in 4.5 moles of sodium
    6·2 answers
  • What would the formula be for this model above?
    14·1 answer
  • Be sure to answer all parts. Enter your answer in scientific notation. What is the length in inches (in) of a 100-meter soccer f
    6·1 answer
  • Which of Newton's Three Laws is BEST described by the following statement: A ball dropped from the 10th story of a hotel had mor
    5·1 answer
  • Which of these would produce a soft sound A (a slow vibration) B (a big vibration) C (a fast vibration) or D (a tiny vibration)
    5·1 answer
  • A container of gas is initially at 0.500 atm and 298 K. What will the pressure be at 398 K?
    11·1 answer
  • How does government ensure a safe environment for inverters? ​
    15·1 answer
  • The pressure needed to pump blood back to the heart is produced by the _____.
    5·1 answer
  • 8. How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3),
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!