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3 years ago

Critical practices to control the amount of solid waste include __________.

Chemistry

2 answers:

Sindrei [870]3 years ago

5 0

Answer:

There are a number of critical practices that can be employed in the modern world to reduce the amount of solid waste. These include recycling materials such as paper, plastic, glass, and metals which can easily be turned into new objects, and reusing objects that do not have to be disposable for health reasons. So it's A

Explanation:

erica [24]3 years ago

3 0

Reduce, reuse, recycle, compost. I think hope its helpful.

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1. A pure substance is a chemical substance that has the same composition throughout. There are two

marin [14]

Answer:

Option D. Iron and sulfur react to form iron sulfide

Explanation:

Reaction of iron with sulphur is a chemical property and not a physical property.

3 0

3 years ago

What is an Richter scale. ( IN your own words)

Pepsi [2]

Answer:

a richter scale measures the magnitude of an earthquake so in my own words i would say the richter scale measures the size of an earthquake and letting us kniw how big it will be to prepare for it.

5 0

3 years ago

Find the mass in 2.6 mole of lithium bromide

Tresset [83]

Answer:

2.6 mole of lithium bromide have 225.81 g.

Explanation:

Given data:

Number of moles of lithium bromide = 2.6 mol

Mass of lithium bromide = ?

Solution:

Formula:

<em>Number of moles = mass/ molar mass</em>

Molar mass of lithium bromide = 86.85 g/mol

Mass = number of moles × molar mass

Mass = 2.6 mol ×86.85 g/mol

Mass = 225.81 g

Thus 2.6 mole of lithium bromide have 225.81 g.

5 0

3 years ago

Which term or phrase best describes what happens when sugar burns

Olenka [21]

Chemical change. Made my answer simple enough and I hope it becomes brainiest. Happy to help!

6 0

3 years ago

Sulfur hexafluoride, a dense gas, is held in two separate containers in a storage room at an atmospheric pressure of 755 mmHg an

dimaraw [331]

Explanation:

As it is given that both the given containers are at same temperature and pressure, therefore they have the same density.

So, mass of $SF_{6}$ in container- 1 is as follows.

5.35 mol x molar mass of $SF_{6}$

= 7.61 mol x 146.06 g/mol

= 1111.52 g

Therefore, density of $SF_{6}$ will be calculated as follows.

Density = $\frac{mass}{volume}$

density = $\frac{1111.52 g}{2.09 L \times 1000 ml/L}$

= 0.532 g/mL

Now, mass of $SF_{6}$ in container- 2 is calculated as follows.

4.46 L x 1000 mL/L x 0.532 g/mL

= 2372.72 g

Hence, calculate the moles of moles $SF_{6}$ present in container 2 as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

= $\frac{2372.72 g}{146.06 g/mol}$

= 16.24 mol

Since, 1 mol $SF_{6}$ contains 6 moles F atoms .

So, 16.24 mol $SF_{6}$ contains following number of atoms.

= $16.24 mol \times 6$

= 97.46 mol

Thus, we can conclude that moles of F atoms in container 2 are 97.46 mol.

7 0

3 years ago