All categories

3 years ago

Please help won’t have time to finish due date is today was @ hospital all night!!

2 answers:

8 0

1. CaS 2. Nitrogen forms an anion with a -3 charge. 3. S 4. Ca2N3 5. Mg3N2. Magnesium nitride 6. CaO. So 1,1 7. 2- O2- (2- is super scripted). It is also an anion, which is a negatively charged ion. 8. That would be aluminum iodide AlI3, also called aluminum triiodide. 9. LiCI These should be correct. Hope I helped. ^~^

BigorU [14]3 years ago

4 0

Answer:

The aluminum atom

✔ loses

electrons to form an ion.

The ion that is formed is

✔ positive

Explanation:

You might be interested in

What is a physical intensive property?

Len [333]

An intensive property is a property that does not change depending on how much mass of it you are considered. An example of an intensive property is density. No matter how much water you examine, the density of the sample will be 1g/cm³.

6 0

2 years ago

Can anyone fill in the answers?

Arte-miy333 [17]

Hi, P.S. The atomic number will always be the same as the number of protons...

6 0

2 years ago

What is the molecular formula of the structure below?

taurus [48]

Answer:

C₆H₆

Explanation:

Each border of the figure represents 1 atom of carbon. We have 6 borders = 6 atoms of carbon.

Each atom of carbon form 4 bonds. All the carbons are doing a double bond and a single bond with other carbons. That means are bonded 3 times. The other bond (That is not represented in the figure. See the image) comes from hydrogens. As we have 6 carbons that are bonded each 1 with one hydrogen. There are six hydrogens and the molecular formula is:

This structure is: Benzene

8 0

2 years ago

How many moles are 4.20 * 10 ^ 25 atoms of Ca?

aleksandr82 [10.1K]

Answer:

~69.744 moles of Ca

Explanation:

Using Avogadro's constant , we know that:

1 mole = 6.022 x 10^23 atoms

S0, the number of moles in 4.20 x 10^25 atoms of Ca:

=(4.20 x 10^25 x 1 )/(6.022 x 10^23)

~69.744 moles of Ca

Q2:How many atoms are in 0.35 moles of oxygen?

1 mole = 6.022 x 10^23 atoms

S0, the number of atoms in 0.35 moles of oxygen:

=[0.35 x (6.022 x 10^23)]

=2.1077 x 10^23 atoms of Oxygen

Hope it helps:)

4 0

2 years ago

Help please see attached file

OLga [1]

Answer:

balanced equation of glucose

6CO2 + 6H2O----------C6H12O6 + 6O2

in the presence of sun light.

3 0

2 years ago