3 years ago

Which subatomic particle helps identify an elements identify

Chemistry

1 answer:

Sindrei [870]3 years ago

8 0

Answer:

Protons

Explanation:

Protons are the subatomic particle that determines the identity of an element.

You might be interested in

Pressure gauge at the top of a vertical oil well registers 140 bars. The oil well is 6000 m deep and filled with natural gas dow

andreyandreev [35.5K]

Explanation:

(a) The given data is as follows.

Pressure on top ( $P_{o}$ ) = 140 bar = $1.4 \times 10^{7} Pa$ (as 1 bar = $10^{5}$ )

Temperature = $15^{o}C$ = (15 + 273) K = 288 K

Density of gas = $\frac{PM}{ZRT}$

$\frac{dP}{dZ} = \rho \times g$

$\frac{dP}{dZ} = \int \frac{PM}{ZRT}$

$\int_{P_{o}}^{P_{1}} \frac{dP}{dZ} = \frac{Mg}{ZRT} \int_{0}^{4700} dZ$

$ln (\frac{P_{1}}{P_{o}}) = \frac{18.9 \times 10^{-3} \times 9.81 \times 4700 m}{0.80 \times 8.314 J/mol K \times 288 K}$

= 0.4548

$P_{1} = P_{o} \times e^{0.4548}$

= $1.4 \times 10^{7} Pa \times 1.5797$

= $2.206 \times 10^{7} Pa$

Hence, pressure at the natural gas-oil interface is $2.206 \times 10^{7} Pa$ .

(b) At the bottom of the tank,

$P_{2} = P_{1} + \rho \times g \times h$

= 2.206 \times 10^{7} Pa + 700 \times 9.81 \times (6000 - 4700)[/tex]

= $309.8 \times 10^{5} Pa$

= 309.8 bar

Hence, at the bottom of the well at $15^{o}C$ pressure is 309.8 bar.

6 0

3 years ago

The endocrine system is made of which components?

AysviL [449]

Adrenal Glands
Pancreas
Thyroid and Parathyroid Glands

3 0

3 years ago

Scientists use _____ as chemical symbols. dots letters shapes lines

defon

Answer:

Letters

Explanation:

6 0

3 years ago

Read 2 more answers

Although si is an insulator then how does it behave as semiconductor upon heating

soldier1979 [14.2K]

A semiconductor's resistivity decreases with the increase in temperature.
More is the heat imparted to it, it will behave more as an insulator.

8 0

3 years ago

Which element most likely has the same number of valence electrons as silicon (Si)?

Hatshy [7]

Answer:

germanium (Ge)

Explanation:

both belong to the same group

5 0

3 years ago