3 years ago

Which of the following is a noncontact force?

Chemistry

2 answers:

MaRussiya [10]3 years ago

7 0

Answer: Gravity

Explanation:

It pushes you down but you never actually touch it

aalyn [17]3 years ago

6 0

Answer:

gravity

Explanation: its a force that pulls you down but you are never making contact with it

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A 1.2 L weather balloon on the ground has a temperature of 25°C and is at atmospheric pressure (1.0 atm). When it rises to an el

musickatia [10]

Answer:

$T_2=335.42K=62.27^oC$

Explanation:

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In this case, by using the general gas law, that allows us to understand the pressure-volume-temperature relationship as shown below:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

Thus, solving for the temperature at the end (considering absolute units of Kelvin), we obtain:

$T_2=\frac{P_2V_2T_1}{P_1V_1}=\frac{1.8L*0.75atm*(25+273.15)K}{1.2L*1.0atm} \\\\T_2=335.42K=62.27^oC$

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3 years ago

Butanoic acid + 2 propanol

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Answer:

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2 years ago

calculate the mass required to prepare 2.5 L of 1.0 M NaOH solution. Given that the molar mass for NaOH is 40 g/mol.

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Answer:

The required mass to prepare 2.5 L of 1.0 M NaOH solution is 100 g

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