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
riadik2000 [5.3K]
2 years ago
9

Suggest two reasons why copper should not be disposed of in landfill sites

Chemistry
1 answer:
Dmitry [639]2 years ago
5 0

Copper should not be disposed of in landfill sites because the dust and waste gases of copper is very harmful to the environment. It can leached into the ground possibly affecting the underground water.

You might be interested in
Does the bowling ball have more potential energy or kinetic energy as it is halfway through its fall? Why?
ahrayia [7]

Answer:

more kinetic

Explanation:

I think the kinetic energy is 75 percent while the potential energy is 25 percent

5 0
3 years ago
A barium hydroxide solution is prepared by dissolving 2.06 g of Ba(OH)2 in water to make 32.9 mL of solution. What is the concen
navik [9.2K]

Answer:  1.36 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute

To calculate the moles, we use the equation:

moles of solute= \frac{\text {given mass}}{\text {molar mass}}=\frac{2.06g}{171g/mol}=0.0120moles

Molarity=\frac{0.0120\times 1000}{32.9}=0.364M

The balanced reaction between barium hydroxide and perchloric acid:

2HCIO_4+Ba(OH_)2\rightarrow BaCIO_4+2H_2O

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HClO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ba(OH)_2

We are given:

n_1=1\\M_1=?\\V_1=8.50mL\\n_2=2\\M_2=0.364M\\V_2=15.9mL

Putting values in above equation, we get:

1\times M_1\times 8.50=2\times 0.364\times 15.9\\\\M_1=1.36M

Thus the concentration of the acid is 1.36 M

4 0
2 years ago
Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the
mojhsa [17]

Answer:

Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the

temperature of the water. The water in the beaker began to boil when it reached the temperature of

100'C. If Mario completes the same experiment with 25mL of water, what would happen to the boiling

point?

a) The water will not reach a boil.

b) The boiling point of water will increase.

c) The boiling point of water will decrease.

d) The boiling point of water will stay the same.

Explanation:

6 0
3 years ago
An unsaturated solution is one that ________. an unsaturated solution is one that ________. contains the maximum concentration o
ziro4ka [17]
<span>An unsaturated solution is one that has a concentration lower than it's solubility. What happens is all of the solute dissolves in the solvent. For example, dumping a spoon of sugar into coffee ends up with an unsaturated solution. Because all the sugar dissolves into the solvent (the coffee).</span>
4 0
3 years ago
What is the SI unit used to measure weight?
stepladder [879]

Answer:

The si unit used to measure weight is kilogram /kg

7 0
2 years ago
Other questions:
  • The nucleus contains both protons and electrons True or false
    6·1 answer
  • The half-reactions in a nickel-cadmium (nicad) battery are:
    7·1 answer
  • How would temperature changes in the atmosphere enough to melt Antarctic Ice affect the hydrosphere lithosphere and biosphere
    5·2 answers
  • "the osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant
    14·2 answers
  • Which of the following elements would exhibit the greatest shielding effect?
    5·2 answers
  • I have these orgo problems for homework and I have no idea where to even begin. We have to find missing reagents and products ba
    7·1 answer
  • All I need is the answer I don’t need any work shown, what is the pH= ?
    15·1 answer
  • How do I answer the question in bold? Thank you!
    15·1 answer
  • Which of the following is true of the gas constant, R?
    15·1 answer
  • How many moles of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!