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Anna [14]
4 years ago
7

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

Chemistry
2 answers:
yuradex [85]4 years ago
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]4 years ago
4 0

Answer:

The aluminum atom

✔ loses

 electrons to form an ion.

The ion that is formed is

✔ positive

.

Explanation:

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If water is added to a 0.70 molar solution of CuSO4 what will change
lana [24]

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.

7 0
3 years ago
temperature is the transfer of thermal energy from one object to another. Please select the best answer from the choices provide
Hunter-Best [27]

The statement above is FALSE.

Temperature is the degree of coldness or hotness of a body while heat transfer is the transfer of thermal energy from one object to another object. Temperature tells us how cold or hot a body is and it can be measured in Celsius, Kelvin or Fahrenheit. The thermometer is the instrument that is used in the measurement of temperature. Change in temperature is an important indicator that is used in various ways in humans and external systems.  

5 0
3 years ago
What are the hydronium and hydroxide ion concentrations in a solution whose ph is 6.52?
erica [24]

A solution with a pH of 6.52 has a hydronium ion concentration of 3.02x10-7 mol/L and a hydroxide ion concentration of 3.31x10-8 mol/L.

The hydronium ion concentration of a solution can be calculated from pH by using 10^{-pH}. For a pH of 6.52, hydronium ion concentration is 3.02x10-7 mol/L.

The concentration of hydroxide ions can be determined by identifying the value of pOH. The sum of pOH and pH is equal to 14, which is based on the negative logarithm of the ion-product constant of water. At a pH of 6.52, pOH is equal to 7.48.

The relationship between pOH and hydroxide ion concentration is the same as the relationship between pH and hydronium ion concentration. With this, the hydroxide ion concentration at pOH of 7.48 is 10^{-7.48} or 3.31x10-8 mol/L.

For more information regarding pH and pOH,  please refer to the link brainly.com/question/13557815.

#SPJ4

3 0
1 year ago
What do you call a mass of rock and soil deposited directly by <br> a glacier
melomori [17]
It's called a "Till"
6 0
3 years ago
Please help like please
klemol [59]

Answer:

It is the third one

Explanation:

"Both atoms achieve a more stable configuration."

4 0
3 years ago
Read 2 more answers
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