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
Illusion [34]
3 years ago
10

When loading your sample onto the column, the solvent head should be about 0.5 cm below the top of the gel. A. True B. False

Chemistry
1 answer:
AysviL [449]3 years ago
8 0
B false because it says 0.5cm on top of gel
You might be interested in
A basketball player jumps straight up to dunk a basketball. The basketball player's speed increases as she returns to the
katen-ka-za [31]

Options :

The upward force is greater than the downward force.

The downward force is greater than the upward force.

The rightward force is greater than the leftward force.

The leftward force is greater than the rightward force.

Answer:

The downward force is greater than the upward force.

Explanation:

When the player jumps to dunk a basket ball, it requires an upward force exerted on the person due to the push by the person to jump, after dunking the basket ball, the player attains maximum height, where his final velocity becomes zero and his direction changes (from upward to downward), at this point his velocity increases due to the additional force exerted on the player due to the Earth's Gravitational pull - which is a downward force which acts on an object).

Hence, it could be concluded that the increase in speed of the basketball player as she returns to the ground means that the downward force is greater than the upward force acting on the player.

7 0
2 years ago
A student dissolves equal amounts of salt in equal amounts of warm water, room-temperature water, and ice water. Which result is
Tanya [424]

doesnt salt desolve ice? so wouldn't the salt dissolve in the ice water?

6 0
3 years ago
Read 2 more answers
What are 4 properties that krypton has?
Nuetrik [128]
<span><span>Atomic number36,</span><span>Atomic mass<span>83.80 g.mol -1,</span></span><span>Density<span>3.73 10-3 g.cm-3 at 20°C,</span></span><span>Melting point- 157 °C,</span><span>Boiling point<span>- 153° C</span></span></span>
5 0
3 years ago
Read 2 more answers
A thief who has stolen large quantities of uranium-235 may have increased
Gala2k [10]
Nuclear waste not a b or d it’s nuclear waste
3 0
3 years ago
The following balanced equation describes the reduction of iron(III) oxide to molten iron within a blast furnace: Fe2O3(s) + 3CO
Irina-Kira [14]

Answer:

Amount of excess Carbon (ii) oxide left over = 23.75 g

Explanation:

Equation of the reaction: Fe₂O₃ + 3CO ----> 2Fe + 3CO₂

Molar mass of Fe₂O₃ = 160 g/mol;

Molar mass of Carbon (ii) oxide = 28 g/mol

From the equation of reaction, 1 mole of Fe₂O₃ reacts with 3 moles of carbon (ii) oxide; i.e. 160 g of iron (iii) oxide reacts with 84 g (3 * 28 g)  of carbon (ii) oxide

450 g of Fe₂O₃ will react with 450 * 84/180) g of carbon (ii) oxide = 236..25 g of carbon (ii) oxide

Therefore the excess reactant is carbon (ii) oxide.

Amount of excess Carbon (ii) oxide left over = 260 - 236.25

Amount of excess Carbon (ii) oxide left over = 23.75 g

5 0
2 years ago
Other questions:
  • Calculate the number of moles of Cl atoms in 1.81×10^24 formula units of magnesium chloride,MgCl2
    5·1 answer
  • Which factor is most likely to contribute to the evolution of a species?
    15·2 answers
  • Which elements can be magnetic? Question 35 options: A) Iron, Carbon, and Gold B) Cobalt, Nickel, and Iron C) Nickel, Gold, and
    7·2 answers
  • Is concrete a compound element or mixture?
    9·1 answer
  • -(PLEASE HELP)-
    6·2 answers
  • Which element is least likely to undergo a chemical reaction
    8·1 answer
  • Two elements in the second transition series (Y through
    9·2 answers
  • Which of the following gases will escape through a hole in a balloon at the highest rate? Kr NO Ar N2O
    8·1 answer
  • What is the density of an object with a mass of 140 g and a volume<br> of 6 ml
    7·1 answer
  • The mineral content of rocks helps to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!