How many moles of helium are in a Superman ballon of volume 8.5 L at 92.3 kPa and 287 K?

What types of compounds are CaCl2, Cu, C2H6, respectively.

KiRa [2933]

Response:

Ionic, metal, organic

Clarification:

For this scenario, we should examine each compound:

-) $CaCl_2$

In this compound, there is a non-metal atom (Cl) paired with a metal atom (Ca). This leads to a significant difference in electronegativity, indicating that an ionic bond will form. Ions can be generated:

$CaCl_2~->~Ca^+^2~+~2Cl^-$

The positive ion would be $Ca^+^2$ while the negative ion is $Cl^-$ . Thus, we have an ionic compound.

-) $Cu$

Here, we are looking at a single atom. Consulting the periodic table shows that this atom belongs to the transition metals section (central part of the periodic table). Hence, Cu (Copper) is identified as a metal.

-) $C_2H_6$

Within this molecule, carbon and hydrogen are linked by single bonds. The difference in electronegativity between C and H is insufficient to lead to ion formation. Therefore, we have covalent bonds. This property is typical of organic compounds. (Refer to figure 1)

5 0

2 months ago

As a final problem for the week Snape thinks we should incorporate something from a previous week, hydrates perhaps. Suppose we

lorasvet [2795]

The formula is =

5 0

1 month ago

A chemical reaction in which bonds are broken is usually associated with ________. a synthesis forming a larger molecule the rel

alisha [2963]

The response to this inquiry involves energy release. The bonds holding molecule atoms act as energy reserves. One method of energy release occurs when these bonds are severed, allowing energy to disperse outward. This breaking leads to smaller molecules rather than the creation of a larger one.

4 0

2 months ago