Answer:
Cr
Explanation:
Cr goes from +3 to +6 and when it increases it means is being oxidized.
A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.
Answer:
0.13M and 0.16m.
Explanation:
Molarity is defined as the moles of solute present in 1L of solution.
Molality is the moles of solute per kg of solvent.
To solve this problem we need to convert the mass of sucrose to moles using its molar mass and finding the volume in L of the solution and the mass in kg of solvent:
<em>Moles sucrose: </em>
Molar mass:
12C = 12*12.01g/mol = 144.12g/mol
22H = 22*1.005g/mol = 22.11g/mol
11O = 11*16g/mol = 176g/mol
Molar mass of sucrose is 144.12g/mol + 22.11g/mol + 176g/mol = 342.23g/mol
Moles are:
19.0g * (1mol / 342.23g/mol) = 0.0555 moles of sucrose
<em>Liters solution:</em>
425mL * (1L / 1000mL) = 0.425L
<em>kg solvent:</em>
425mL * (0.82g/mol) = 348.5g * (1kg / 1000g) = 0.3485kg
<em>Molarity:</em>
0.0555 moles / 0.425L
<h3>0.13M</h3><h3 />
<em>Molality:</em>
0.0555 moles / 0.3485kg
<h3>0.16m</h3>
Hello! Here is the answer! These London dispersion forces are often found in the halogens (e.g., F2 and I2), the noble gases (e.g., Ne and Ar), and in other non-polar molecules, such as carbon dioxide and methane. London dispersion forces are part of the van der Waals forces, or weak intermolecular attractions. I hope this helped! Your fellow Brainly user, GalaxyGamingKitty ===I DO NOT OWN THIS INFORMATION!! THE INFORMATION GIVEN IS MADE POSSIBLE BY Google===
Answer:
Im not sure if im right but i think its Ca
Explanation: