A metal sample weighs 56.8 grams. How many ounces does this sample<br> weigh? (1 lb = 16 oz)

You develop and visualize a silica gel TLC plate and are not satisfied with the results. Which of the following experimental par

borishaifa [10]

Answer:

Explanation:

Toe change the retention factor of a TLC analysis, you can change your solvent for a more or less polar one, depending on your analyte. You can use a mix of solvents too.

You can also change the your method to visualize the spots, you can use fluorescent compounds that can only be seen in black light, you can use Iodine, Bromine and so on.

7 0

4 years ago

5)

zimovet [89]

C) A chlorine atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons

Explanation:

The statement that best explains the behavior of chlorine is that its atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons.

To form an ionic bond, two atoms combines together via electrostatic attraction between them.
Ionic bonds are formed between metals and non-metals.
The large electronegativity difference between the two specie is the driving factor.
In forming NaCl compound, Na donates electron which is accepted by Chlorine.
This leaves a positive charge on Na and a negative charge on chlorine and the ensuing electrostatic attraction forms an ionic bond.

To form the covalent bond, the chlorine shares their valence electrons between themselves. They have an equal affinity for these electrons and this leads to the formation of a non-polar covalent bond

learn more:

Ionic bonds brainly.com/question/6071838

Polar molecules brainly.com/question/12538321

#learnwithBrainly

4 0

3 years ago

When people smoke, carbon monoxide is released into the air. In a room of volume 70 m3, air containing 5% carbon monoxide is int

KonstantinChe [14]

Answer:

$\frac {dQ}{dt}=0.0001-\frac {Q}{70}\times 0.002$

Explanation:

Given that the volume is $70\ m^3$

The air flows (F) at the rate of $0.002\ m^3/min$ . The concentration of carbon monoxide in the air is 5%.

Let Q be the amount of the carbon monoxide present in the room at time t. then,

$\frac {dQ}{dt}=Rate\ of\ Q_{in}-Rate\ of\ Q_{out}$

Also,

$Rate\ of\ Q_{in}=5\%\ of\ 0.002=0.0001$

$Rate\ of\ Q_{out}=\frac {Q}{70}\times 0.002$

Thus,

$\frac {dQ}{dt}=0.0001-\frac {Q}{70}\times 0.002$

6 0

4 years ago

Fill in the blank:

Roman55 [17]

Answer:

Weathering, Erosion

Explanation:

Plants and animals can be agents of mechanical weathering. The seed of a tree may sprout in soil that has collected in a cracked rock. As the roots grow, they widen the cracks, eventually breaking the rock into pieces. Over time, trees can break apart even large rocks.

Tree root systems have a handful of large roots that branch out into a network of smaller roots that often extend out far beyond their branches do. These root systems prevent erosion by holding the soil in place and improving drainage which helps water get absorbed into the soil instead of just running over the top.

Hope this helps

All the love, Ya boi Fraser :)

7 0

3 years ago

Read 2 more answers

Two beakers are placed in a small closed container at 25 °C. One contains 284 mL of a 0.296 M aqueous solution of C6H12O6; the s

Katen [24]

Answer:

Final volume = 0.103M x446ml/0.184m = 250ml

Explanation:

As time passes, the volume of solutions in the second beaker decreases and that in the first beaker increases. If we wait long enough, the final volumes and concentration in the beakers would be,

First beaker

Final concentration = 0.184M

Final volume = 0.296M x 284ml/0.184 = 457ml

Second beaker

Final concentration = 0.184M

Final volume = 0.103M x446ml/0.184m = 250ml

6 0

3 years ago

Read 2 more answers

A metal sample weighs 56.8 grams. How many ounces does this sample weigh? (1 lb = 16 oz)