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stepan [7]
3 years ago
7

According to the video, what are some tasks Environmental Scientists and Specialists perform? Check all that apply. performing l

ab and field tests designing and monitoring waste-disposal sites observing zoo animals reviewing volunteer applications tending sick animals preserving water supplies reclaiming contaminated land and water
Chemistry
1 answer:
allsm [11]3 years ago
3 0

Answer: performing lab and field tests,

designing and monitoring waste-disposal sites,

preserving water supplies,

reclaiming contaminated land and water

Explanation:

I Just Know the answer And So do you!

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1. When an acid reacts with a base, what compounds are formed? (1 point) a salt only water only metal oxides only a salt and wat
scoundrel [369]

Answer: 1) only a salt and water

An acid and base reacts together to undergo neutralization to form salt and water.

HCl+NaOH\rightarrow NaCl+H_2O

where HCl is an acid and NaOH is a base to form salt (NaCl) and water (H_2O).

Answer: 2) The formula of the hydrogen ion is often written as H^+.

All acids dissociate in water to give  H^+ ions.

Answer: 3) Arrhenius acids are substances that ionizes to yield protons in aqueous solution.

HCl\rightarrow H^++Cl^-

Arrhenius bases are substance that ionizes to yield hydroxide ions in aqueous solution.

NaOH\rightarrow Na^++OH^-

Answer: 4) A conjugate acid base pair  transfers hydrogen ion.

CH_3COO^-+H_2O\rightarrow CH_3COOH+H_3O^+

Here CH_3COO^- accepts a proton and thus act as a base and the corresponding CH_3COOH is its conjugate acid.

Answer: 5) Bronsted Lowry acid is a substance that donates protons.  Bronsted Lowry base is a substance that accepts protons.

NH_4^+ and NH_3

NH_3+H^+\rightarrow NH_4^+

NH_3 is a acid which accepts proton and thus acts as base to form conjugate acid NH_4^+.


4 0
3 years ago
Read 2 more answers
Oxygen is not a large part of the air used by organisms in respiration therefore it is not an important element.
Rudik [331]

Answer

false

explanation

air is the most important element in respiration

6 0
2 years ago
If you had a mixture that was found to contain 1.05g SiO2, 0.69g Cellulose and 1.82g Calcium Carbonate. What percentage calcium
boyakko [2]
Percentage by mass = (mass of substance / total mass) x 100
= 1.82 / (1.05 + 0.69 + 1.82) x 100
= 51.1% if Calcium Carbonate
6 0
3 years ago
The light produced from electrons comes from them doing what?
jarptica [38.1K]
A : falling back to a it’s original lower state after being excited by fire.
6 0
4 years ago
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What type of substance is this? CH3COOH acid base salt
Angelina_Jolie [31]
Acetic acid. Hope this helps :) 
5 0
3 years ago
Read 2 more answers
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