Answer:
The new presures is 4.70 atm
Explanation:
We must apply the Boile Mariotte law that states, at constant T° the presure changes indirecty proportional to volume
P₁ . V₁ = P₂ . V₂
1atm . 4 L = P₂ . 0.85L
(1atm . 4 L) / 0.85L = P₂
4.70 atm= P₂
Answer:
0.95g of Ag we can produce
Explanation:
To solve this question we have to convert the mass of silver nitrate (AgNO₃) to moles. The moles of silver nitrate = Moles of Ag. Then, with molar mass of Ag we can know the mass of silver:
<em>Moles AgNO₃ -Molar mass: 169.87g/mol-:</em>
1.5g * (1mol / 169.87g) = 0.0088 moles Ag
<em>Mass Ag -Molar mass: 107.87g/mol-:</em>
0.0088 moles Ag * (107.87g / mol) =
<h3>0.95g of Ag we can produce</h3>
Sodium is a Group 1 element (or IA in older labelling styles). Group 1 elements are often referred to as the "alkali metals". The chemistry of sodium is dominated by the +1 ion Na+.
Hope this helped .
This is known as the element IR. (<span>Iridium) Iridium has the atomic number of 77 therefore has </span>
"77 protons, 77 electrons, and 116 neutrons." You can figure out how many protons and electrons a element has by looking at the atomic number. In this case the atomic number is 77 therefore it will have 77 protons and electrons!
Hope this helps!
Answer:
Looking for certain physical properties.
Explanation:
These properties include color, size, mass, luster, etc.
Weighing the item is a common way to find one physical property, mass.