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olga nikolaevna [1]
2 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]2 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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What is the formula, when rubidium reacts with tellurium?
natita [175]

Answer:

Like other alkali metals, rubidium metal reacts violently with water. As with potassium (which is slightly less reactive) and caesium (which is slightly more reactive), this reaction is usually vigorous enough to ignite the hydrogen gas it produces.

Explanation:

hope it helps

5 0
2 years ago
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Approximately 1 mL of two clear, colorless solutions-0.1 M Ba(NO3)2 and 0.1 M Na2SO4- were combined. Upon mixing, a thick, milky
murzikaleks [220]

Answer: balanced chemical equation: Ba(NO_3)_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaNO_3(aq)

Net ionic equation : Ba^{2+}(aq)+SO_4^{2-}(aq)\rightarrow BaSO_4(s)

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

The balanced chemical equation is:

Ba(NO_3)_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaNO_3(aq)

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

Ba^{2+}(aq)+2NO_3^-(aq)+2Na^+(aq)+SO_4^{2-}(aq)\rightarrow  BaSO_4(s)+2Na^+(aq)+2NO_3^-(aq)

The ions which are present on both the sides of the equation are sodium and nitrate ions and hence are not involved in net ionic equation.

Hence, the net ionic equation is Ba^{2+}(aq)+SO_4^{2-}(aq)\rightarrow BaSO_4(s)

4 0
3 years ago
How can wind produce erosion?
Virty [35]

Answer:

A is the coorrecct answuer

Explanation:

8 0
2 years ago
Which element consists of positive ions immersed in a “sea” of mobile electrons?
denis-greek [22]

Answer:

Calcium

Explanation:

Calcium is the only metal here

hope this helps...

8 0
2 years ago
Which statement is true of a chemical change?
Andru [333]
The appropriate answer is a. it involves a change in the molecular structure of the substance. A change in phase or state is referred to as a physical change. For example...liquid water freezing is a physical change because the state changes but solid water is still H20. Separating water into its constituent atoms, hydrogen and oxygen is a chemical change because the molecular structure of water is now non existent.
5 0
3 years ago
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