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Ede4ka [16]
2 years ago
15

Pls help really need it pls

Chemistry
1 answer:
rosijanka [135]2 years ago
4 0
The correct answer is the first one i think
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A solution...
steposvetlana [31]

Answer:

A

Explanation:

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3 years ago
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what object experiences a frequency equal to its natural frequency _______ is said to have occurred. 1. resonance 2. frequency 3
Talja [164]
Amplitude is the awnser glad I could help you
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2 years ago
Determine the percentage composition (by mass) of oxygen in NH4NO3.
Brrunno [24]

Answer:

60%

Explanation:

M(NH4NO3) = 2*14 +4*1 +3*16 = 80 g/mol

M(3O) = 3*16 = 48 g/mol

(48/80) *100 % =60% oxygen by mass.

6 0
2 years ago
The end point of a titration is defined as the volume of titrant added, while the equivalence point is the volume required for c
saw5 [17]

Answer:

...BY CHOOSING A PROPER INDICATOR, SCIENTISTS CAN MINIMIZE THE DIFFERENCE IN THESE TWO NUMBERS,...

Explanation:

A chemical indicator is an agent or substance which gives a visible sign especially a color change when introduced to a solution of base indicating the threshold of the concentration of acid used in the titration procedure. These indicators include methyl orange, methyl red, phenolpthalein. They give a color change when the concentration of an acid as reached a critical limit in order for the reaction to be stopped. These indicators are involved in acid-base titrations, oxidation- reduction reactions and so on. More accurate results of the volume of the required acid or base is obtained by the introduction of these indicators.

8 0
2 years ago
Which statement best compares the properties of compounds and elements that the compounds contain?
grigory [225]
<span>The answer to this question would be: B.They are different. 

A compound will have different characteristics from their element. </span>The interaction of different elements in a compound makes it so. They might have similar or opposite characteristic but it didn't always happen so those answers are not best.
4 0
3 years ago
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