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fiasKO [112]
3 years ago
11

A light or optical microscope most commonly uused is a

Chemistry
1 answer:
kirill115 [55]3 years ago
4 0
A bright feild is most commonly used 
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If your really kind please help I just want help
Eva8 [605]
<span>Thyroid hormones T4, T3
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4 0
3 years ago
15.630 g milk chocolate bar ks found to contain 9.815g of sugar. how many milligrams of sugar does the bar contain?
sleet_krkn [62]
Well there are 1,000 milligrams in 1 gram so 9.815 grams of sugar is equivalent to 9,815 milligrams of sugar. So a bar of milk chocolate contains 9,815 milligrams of sugar.
3 0
3 years ago
Read 2 more answers
Match the compounds as organic (O) or inorganic (I).
SashulF [63]
H2O2(I)
C6H6(O)
CO2(I)
C2H6(O)
HNO3(I)
7 0
3 years ago
Read 2 more answers
A student constructs a galvanic cell that has a strip of iron metal immersed in a solution of 0.1M Fe(NO3)2 as one half-cell and
MrMuchimi

Answer:

Fe

Explanation:

The cell potential is:

ΔE°cell = E°red(red) - E°red(oxid)

Where, E°red(red) is the reduction potential of the substance that is reducing, and E°red(oxid) is the reduction potential of the substance that is oxidizing. For the reaction be spontaneous and happen, ΔE°cell > 0.

The reduction takes place in the cathode, which is the negative pole, and the oxidation in the anode, which is the positive pole. So, the electrons flow from the positive pole to the negative pole (anode to cathode).

Then, if the voltmeter measured a negative potential, it means that is was attached incorrectly. So, the anode is Fe.

4 0
3 years ago
When a compound is dissolved in hot ethanol during a recrystallization, what is changing on a molecular level? The intermolecula
Feliz [49]

Answer:

The intermolecular forces between the solute and solvent.

Explanation:

When you are heating a solvent, the intermolecular forces are reduced because the distances between molecules are large. Thus, in a solution where solvent is hot the intermolecular forces between solute and solvent are lower than those solutions where solvent is in room temperature.

The covalent bonds do not change because this mean a chemical reaction that doesn't occur in a solution.

Usually solid solutes melts in a higher temperature than boiling point in solvents. Thus, a compound normally doesn't melt in a hot solvent.

I hope it helps!

3 0
3 years ago
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