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2 years ago

9

Vigorous stirring significantly increases . . . A. the effective surface area for phase transfer B. the effective concentration

of the reagents C. the solubility of the alcohol D. the solubility of the salt all of these are correct

1 answer:

luda_lava [24]2 years ago

5 0

Answer:

idk

Explanation:

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A piece of metal has a volume of 30.0cm3 and a mass of 252g. What is its density? what metal do you think this is?

Alborosie

Answer:

Explanation:

get density = D = m / V = 0.252 / 0.00003 = 8400
metal will be Cu => bronze

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2 years ago

Locations Cost of land Cost of equipment Cost of mining and reclamation Time taken to mine the area 1 $100,000 $10,000 $5,000 pe

mario62 [17]

Answer:

Location 2 will cost the least to the company to mine.

Explanation:

a) Data and Calculations:

Locations Cost of land Cost of Cost of mining Time taken to

equipment and reclamation mine the area

1 $100,000 $10,000 $5,000 per day 30 days

2 $35,000 $6,000 $4,500 per day 45 days

3 $30,000 $7,500 $3,500 per day 120 days

4 $40,500 $8,000 $7,000 per day 65 days

Locations Cost of land Cost of Cost of mining Total

equipment and reclamation Costs

1 $100,000 $10,000 $150,000 ($5,000 * 30) $260,000

2 $35,000 $6,000 $202,500 ($4,500 * 45) $243,500

3 $30,000 $7,500 $420,000 ($3,500 * 120) $457,500

4 $40,500 $8,000 $445,000 ($7,000 * 65) $503,500

7 0

2 years ago

When are atoms considered to be stable?

Sergio [31]

Answer:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons.

8 0

2 years ago

What is the equation you use to determine the momentum of an object

klemol [59]

The terms of a equation, the momentum of an object is equal to the mass of the object times the velocity of the object. where m is the mass and v is the velocity

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2 years ago

The density of ethanol is 0.789 g/mL. If you need 460.0 g of ethanol for an experiment, how many milliliters would you measure o

4vir4ik [10]

Answer:

The volume is 583.02 mL

Explanation:

Given that the density is:-

$\rho=0.789\ g/mL$

The mass, $m=460.0\ g$

The expression for the calculation of density is shown below as:-

$\rho=\frac{m}{V}$

Using the above expression to calculate the volume as:-

$V=\frac{m}{\rho}$

Applying the values to calculate the volume as:-

$V=\frac{460.0\ g}{0.789\ g/mL}=583.02\ mL$

<u>The volume is 583.02 mL.</u>

3 0

3 years ago