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mr_godi [17]
3 years ago
11

What is the net ionic charge of a calcium ion?

Chemistry
1 answer:
vaieri [72.5K]3 years ago
5 0

Answer:

Ca generally loses two electrons from its outer shell to form a Ca2+ ion.

You might be interested in
What is the most metallic character with low ionization energies
Nat2105 [25]

Answer:

Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities.

4 0
2 years ago
Which is an example of an exothermic process?
Gwar [14]

1) Answer: A hot pack feels warm when chemicals in it combine.

Explanation: Reactions or process in which heat is released(produced) are known as exothermic reactions or process and those in which the heat is absorbed are known as endothermic reactions or process.

If a beaker feels cools when chemical in it react then it means the chemicals have absorbed the heat energy from its surroundings and so it is an example of an endothermic process.

A hot pack feels warm when chemicals in it combine means the energy is released in the chemical reaction and so it is an example of an exothermic process.

Plants use the sun's energy for photosynthesis which is a process of forming food for the plants. Energy acts as a reactant in this process and so it is an example of endothermic process.

Frying an egg by heating it on a stove is an example of an endothermic process as the heat is required to fry the egg.

So, the only exothermic process is the second one, "A hot pack feels warm when chemicals in it combine."

2) In the given equation, heat is written as a product means the heat is released in the equation and so it is an example of an exothermic reaction.

So, the correct choice is the last one " It is exothermic because energy is released."

5 0
3 years ago
Read 2 more answers
Plz answer ASAP
strojnjashka [21]

Answer:

this should help *not a virus

Explanation:

https://kidshealth.org/en/teens/digestive-system.html

6 0
2 years ago
The specific heat capacity of titanium is 0.523j/g c what is the heat capacity of 2.3g of titanium
kodGreya [7K]

Answer:

1.2029 J/g.°C

Explanation:

Given data:

Specific heat capacity of titanium = 0.523 J/g.°C

Specific heat capacity of 2.3 gram of titanium = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

1 g of titanium have 0.523 J/g.°C specific heat capacity

2.3  × 0.523 J/g.°C

1.2029 J/g.°C

8 0
3 years ago
The game of kickball begins with the ball being rolled toward a player. The player then kicks the ball across the field. What is
hammer [34]

Answer:

C. The Speed of the ball depends on the force used to kick it.

Explanation:

6 0
2 years ago
Read 2 more answers
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