Which of the following is not present in an atom? Electron Element Neutron Proton

Chemistry

2 answers:

Aleks [24]3 years ago

5 0

Element are not atoms.

Licemer1 [7]3 years ago

4 0

Answer:

an element is not in an atom

Explanation:

because the only things in a atom are electrons neutrons and protons

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3 years ago

Mi One should know the properties of the components of the mixture to separate it. Explain with an example.

Alekssandra [29.7K]

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3 years ago

When the volume of a gas is

Montano1993 [528]

Answer:

$\boxed {\boxed {\sf 232.9 \textdegree C}}$

Explanation:

This question asks us to find the temperature change given a volume change. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula is:

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

The volume of the gas starts at 250 milliliters and the temperature is 137 °C.

$\frac{250 \ mL}{137 \textdegree C}= \frac{V_2}{T_2}$

The volume of the gas is increased to 425 milliliters, but the temperature is unknown.

$\frac{250 \ mL}{137 \textdegree C}= \frac{425 \ mL}{T_2}$

We are solving for the new temperature, so we must isolate the variable T₂. First, cross multiply. Multiply the first numerator and second denominator, then multiply the first denominator and second numerator.

$250 \ mL * T_2 = 137 \textdegree C * 425 \ mL$