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
vivado [14]
3 years ago
8

Why should scientists control most possible variables in their experiments?

Chemistry
1 answer:
irina [24]3 years ago
8 0
Scientists should control most possible variables in experiments to get the most valid and correct data. If many variables are included in experiments it is more difficult to interpret what is causing a different outcome.
You might be interested in
Calculate the molarity of hydroxide ion in an aqueous solution that has a poh of 5.00
Simora [160]

Answer:

1.00 x 10^-5 M

Explanation:

pOH=-log[OH^-]

so

[OH^-]=10^(-pOH)

=10^-5

=1.00 x 10^-5 M

4 0
3 years ago
Help with chemistry please<br><br>Which chemical reaction involves the most oxygen atoms?
Ratling [72]
H2O is A chemical reaction of the most oxygen atoms
3 0
3 years ago
Answer #4 and #5 make sure you have proof and will give brainliest
sweet-ann [11.9K]

Answer:

B,C

Explanation:

7 0
3 years ago
Read 2 more answers
A mixture of 117.9 g of P and 121.8 g of O, reacts completely to form P4O6 and P4O10. Find the masses of P4O6 and P4O10
Alex17521 [72]

Answer:

Mass of P4O6=103.4

            P4O10=133.48

Explanation:

Balanced reaction is:

8P +8O_{2}  ⇒P_{4} O_{6} +P_{4} O_{10}

Both reactant completely vanishes as equivalent of bot are equal.

Moles of P=\frac{117.9}{31} =3.80

Moles of O_{2} =\frac{117.9}{31} =3.80

No. of moles of formed product are equal and is \frac{1}{8}th of mole of any of reactant.

Thus weight of  P_{4} O_{6} =\frac{3.80}{8}×220 ≈103.41

        weight of  P_{4} O_{10} =\frac{3.80}{8}×284 ≈133.48

4 0
3 years ago
Which pair of atoms has the most polar bond?<br> (1) H−Br <br> (2) H−Cl <br> (3) I−Br<br> (4) I−Cl
S_A_V [24]
For the question given above, option 2 which is H-Cl pair of atoms has the most polar bond among the four of them. 

The larger the value of the electronegativity, the greater the atom’s strength to attract a bonding pair of electrons. <span>Hydrogen has an electronegativity of 2.1, and chlorine has an electronegativity of 3.0. The electron pair that is bonding HCl together shifts toward the chlorine atom because it has a larger electronegativity value.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • ASAP !!!! On a hot summer day the temperature is 30.0C. what is the volume of a weather balloon that has 34.5 moles of helium at
    12·1 answer
  • A compound is 40% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula?
    7·2 answers
  • To which class of elements does copper (cu) belong: metal, metalloid, or nonmetal? identify three other elements in this class.
    7·1 answer
  • I don't unerstand what I'm supposed to do for these
    11·2 answers
  • A tank contains 9000 L of pure water. Brine that contains 20 g of salt per liter of water is pumped into the tank at a rate of 2
    5·1 answer
  • Benzene has a formula of C6H6 and a vapor pressure of 96.4 torr at 298 K. Toluene has a formula of C7H8 and a vapor pressure of
    11·1 answer
  • The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was t
    8·1 answer
  • How many protons are in the nucleus of an atom with an atomic number of 15?
    8·1 answer
  • When the equation
    5·1 answer
  • A student repeats a reaction several times to test the effects of various
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!