Answer:
Al is aluminum. Bromine gas is Br2
Explanation:
Al + Br2 = AlBr3
Answer:
The molecular formula of the phosphorus is P4
Explanation:
<u>Step 1:</u> Data given
Density of phosphorus vapor at 310 °C and 775 mmHg = 2.64g /L
<u>Step 2: </u>Calculate the molecular weight
We assume phosphorus to be an ideal gas
So p*V = n*R*T
⇒ with p = the pressure of phosphorus = 775 mmHg
⇒ with V = the Volume
⇒ with n = the number of moles = mass/molecular weight
⇒ with R = ideal gas constant = 0.08206 L*atm/K*mol
⇒ with T = the absolute temperature
p*V = m/MW *R*T
MW = mRT/PV
⇒ Since the volume is unknown but can be written as density = mass/volume
MW = dRT/P
MW = (2.64g/L * 0.08206 L*atm/K*mol * 583 Kelvin)/1.0197 atm
MW = 123.86 g/mol
<u>Step 3</u>: Calculate molecular formula of phosphorus
The relative atomic mass of phosphorus = 30.97 u
123.86 / 30.97 = 4
The molecular formula of the phosphorus is P4
<span>A rechargeable battery, storage battery, secondary cell, or accumulator is a type of electrical battery which can be charged, discharged into a load, and recharged many times, while a non-rechargeable or primary battery is supplied fully charged, and discarded once discharged. hope this helps</span>
Answer:
a positive charge of +1
Explanation:
The charge carried by atom depends on the number of protons and electrons present. The neutrons are not charged hence they do not contribute to the net charge of the specie.
The specie mentioned in the question has six protons and five electrons. Hence it has an excess of one positive charge hence a net charge of +1.
The R was found to be = 0.6711 L atm/mol.K
The percent error was found to be =18.22 %
<h3>How come magnesium is a metal?</h3>
The three elements that form magnesium a metal are as follows: It effectively conducts electricity. An electropositive element is magnesium. Magnesium has a relatively low ionization enthalpy.
<h3>Where can one find magnesium metal?</h3>
In the crust of the planet, magnesium is the seventh most prevalent element. It is found in huge amounts as magnesite, dolomite, and other minerals but does not naturally occur uncombined.
<h3>What applications does magnesium have?</h3>
- Magnesium supports muscle and neuron function as well as energy synthesis in the body, among many other vital functions.
- Typically, low magnesium levels don't result in any symptoms.
- On the other hand, persistently low levels can raise your risk of osteoporosis, type 2 diabetes, high blood pressure, and heart disease.
learn more about Magnesium here
<u>brainly.com/question/27631695</u>
#SPJ4