3 years ago

If an atom has 12 protons, 13 neutrons, and 10 electrons, what charge would the atom have?

Chemistry

1 answer:

andrew11 [14]3 years ago

3 0

It would be a positive ion

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1. The Measurable physical quantity for which the fundamental measurement is duration is

Aleksandr-060686 [28]

Answer:correct answer is a enegry

Explanation:

5 0

3 years ago

CALCULATE: Determine the volume occupied by 0.582 mol of a gas at 15 degrees Celsius if the pressure is 81.8 KPA?

7nadin3 [17]

PV=nRT

So

NRT/P=V ...
SI units for pressure is pascals so 81.8KPA = 81.8 x 10^3 PA
SI units for temperature is kelvin so 15 degrees celsius = 15 +273 = 288K

(0.582 x 8.314 x 288)/81.8 x 10^3 = 0.017 m3 (cubic meters)

8 0

3 years ago

During one researcher's experiment, the total mass of the gas-generating solid and entire assembly was 52.1487g before the react

irinina [24]

Answer:

43.93 g/mol

Explanation:

The mass of the gas before reaction = 52.1487 g

The mass of the gas after reaction = 52.1098 g

Mass of gas generated = 0.0389 g

Moles of the gas = $8.854\times 10^{-4}\ moles$

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Molar\ mass = \frac{Mass\ taken}{Moles}$

$Molar\ mass= \frac{0.0389\ g}{8.854\times 10^{-4}\ moles}$

Molar mass of the gas = 43.93 g/mol

7 0

4 years ago

If an atom has 4 protons, 5 neutrons, and 4 electrons, what would its atomic mass be?

Rina8888 [55]

Answer:

Explanation:

If I remember correctly, the atomic # will always be the same as the # of electrons

8 0

3 years ago

Please help!!! I’ll mark brainlist

Lerok [7]

Explanation:

they are closer and made of gas

8 0

3 years ago