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hoa [83]
2 years ago
7

You have two solid substances that look the same. What measurements would you take and which tests would you preform to determin

e whether they actually are the same?
Chemistry
1 answer:
ASHA 777 [7]2 years ago
5 0

Answer:

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ssssmmmmmmm

aaaaaaaaaaaOooo

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In chromatography why is it important to remove the strip of paper until it reaches the end​
Zielflug [23.3K]
<h3>Answer:</h3>

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  • Because the water doesn't have to reach all the way to the top.
6 0
3 years ago
Which atom has the weakest attraction for electrons in a chemical bond? A) a boron atom B) a calcium atom C) a fluorine atom D)
Black_prince [1.1K]
<span> The answer is
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3 0
3 years ago
The gas in a balloon has a volume of 2 Lat a temperature of 301 K. What will be the final temperature (in K) when the volume exp
Blizzard [7]

Answer:

Final temperature = 1279.25 K

Explanation:

We can solve this using the formula for Charles law since we are given volume and temperature.

From Charles law, we know that;

V1/T1 = V2/T2

Where;

T1 is the initial temperature

V1 is the initial volume

T2 is the final temperature

V2 is the final volume

We are given;

V1 = 2 L

T1 = 301 K

V2 = 8.5 L

Thus, making T2 the subject, we have;

T2 = V2•T1/V1

Plugging in the relevant values;

T2 = 8.5 × 301/2

T2 = 1279.25 K

4 0
3 years ago
Which chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base?
Komok [63]
The chemical equation that represents the reaction of an Arrhenius acid and an Arrhenius base is 1) HC2H3O2 (aq) + NaOH (aq) ---> NaC2H3O2 (aq) + H2O (I) 
6 0
3 years ago
Read 2 more answers
What type of reaction occurs without the addition of heat?
maria [59]

The type of reaction that occurs without the addition of heat is called spontaneous reaction. That is option D.

<h3>What is spontaneous reaction?</h3>

Spontaneous reaction is defined as the reaction where by new substances are formed naturally without the addition of extra energy in the form of heat.

Therefore, the type of reaction that occurs without the addition of heat is called spontaneous reaction

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5 0
2 years ago
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