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olga nikolaevna [1]
3 years ago
6

URGENT !!!! write a letter to the "city council" PLEASE HELP ILL GIVE THE BRAINIEST AND A BUNCH OF POINT !!What happens to pure

substances and mixtures we create and use in our homes and businesses? As a Material Engineer you have been hired by your city council to investigate how to safely handle waste in your community. For example, household toxic waste (batteries, paint, cleaners), sewage, pesticides. Research household carbon monoxide, lead, bleach, and paint to determine if they are a pure substance or a mixture. Choose 1 pure substance example and 1 mixture example to compare and contrast in a presentation to the City Council along with a plan for how each can be safely disposed of into the environment.
Chemistry
1 answer:
aleksley [76]3 years ago
4 0
Bleach and anytype of cleaner like window cleaner or disinfectant is very dangerous because if you mix those two together it might cause a very deadly fume and can cause lung failure and death within about 5 hours
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Pls help me I’ll mark brainliest
trasher [3.6K]

Answer: C, neap tide

Explanation:

4 0
2 years ago
Classify each process by its individual effect on the entropy of the universe, s. hydrogen peroxide slowly decomposing into wate
Jobisdone [24]
Hydrogen Peroxide slowly decomposing into water and oxygen increases the entropy of the universe. Any reaction of a system always increases the degree of the orderliness of the universe. Decomposition is one of the best examples of increasing the entropy. This is when substance is broken down further to elements or other compounds.  
4 0
3 years ago
How many moles are in 5.4x1024 molecules of C4H2F7I, heptafluoro-1-iodobutane? Group of answer choices
jasenka [17]

Given :

Number of molecules of C_4H_2F_7I.

To Find :

How many moles are in given number of molecules.

Solution :

We know, in 1 moles of any element/compound contains 6.022\times 10^{23} at atoms/molecules.

So, number of moles in 5.4\times 10^{24} molecules are :

n = \dfrac{5.4\times 10^{24}}{6.022\times 10^{23}}\\\\n = 8.97 \ moles

Therefore, number of moles are 8.97 .

4 0
2 years ago
Draw the Lewis structure for NF3. What orbitals on N and F overlap to form bonds between these elements
jonny [76]
Is there a picture ????????????
4 0
2 years ago
A student was asked to determine the densities of the four metals listed. The student was asked to determine the density of an u
Iteru [2.4K]

Answer:

D is correct

Explanation:

because

we know that

density of lead is 11.36 g/cm3

and

density of tin is 7.31 g/cm3

so..

density of alloy by mixing 50/50

=(11.36+7.31)/2 g/cm3

=18.67/2 g/cm3

=9.33 g/cm3

5 0
3 years ago
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