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solong [7]
4 years ago
7

How soluble was solid #4? If a solid appears in the water after 1 g is added, the solid is not soluble. If the entire solid diss

olves after adding 5 g, the solid is very soluble. If a solid appears somewhere between 1 g and 5 g, the solid is slightly soluble.
Chemistry
1 answer:
weqwewe [10]4 years ago
6 0

Answer:

b

Explanation:

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A sample of gas occupies 17 mL at -122°C. What volume does the sample occupy at 70°C?
aev [14]

Answer: 38.6 ml

Explanation:

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.


V\propto T    (At constant pressure and number of moles)

\frac{V_1}{T_1}=\frac{V_2}{T_2}

V_1= initial volume = 17 ml

V_2= final volume = ?

T_1= initial temperature =-122^0C=273+(-122)=151K

T_2=final temperature=70^0C= 70+273=343K

\frac{17}{151}=\frac{V_2}{343}

V_2=38.6ml

Thus final volume is 38.6 ml at 70^0C




7 0
4 years ago
Which describes the slope of the graph from 10 s to 30 s?
inna [77]

Answer:

3

Explanation:

Use the rise over run method. plot the necessary points first in the x and y axis

6 0
3 years ago
Tell whether the statement is TRUE or FALSE. Air pressure is gravity pulling down on air molecules.
nirvana33 [79]
True
Pressure is the force per unit area on an object. The force in the case of air pressure is the weight of the air molecules; therefore, the air pressure is essentially due to gravity pulling down air molecules.
8 0
3 years ago
Two parts that make up a solution are... what
hjlf
Answer: All solutions have two parts: the solute and the solvent. The solute is the substance that dissolves, and the solvent is the substance that dissolves the solute.
Hope that helps (:
5 0
3 years ago
Necesito ayuda con esto y si es necesario con procedimientos, gracias
BaLLatris [955]

Answer:

sorry but I don't understand Spanish

otherwise I will definitely helps you

7 0
3 years ago
Read 2 more answers
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