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BaLLatris [955]
3 years ago
5

Which of the following is an example of a compound? CaCl2 Na Nd Cu

Chemistry
1 answer:
madam [21]3 years ago
5 0
CaCl2

All of the other choices are elements
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A solution is made by adding 200 g table salt to 1
pochemuha

We say that the solution is unsaturated.

Explanation:

If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.

Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.

We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.

Learn more about:

solubility

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7 0
3 years ago
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ЗKOH + H3PO4=K3PO4 + 3H2O <br> what is the reaction
pentagon [3]

Answer: The given reaction is a neutralization reaction.

Explanation:

When an acid chemically reacts with a base then it leads to the formation of salt and water.

For example, 3KOH + H_{3}PO_{4} \rightarrow K_{3}PO_{4} + 3H_{2}O

Here, KOH is a the base and H_{3}PO_{4} is an acid which on chemical reaction with each other leads to the formation of salt (K_{3}PO_{4}) and water (H_{2}O).

Thus, we can conclude that the given reaction is a neutralization reaction.

3 0
3 years ago
What is the isolated system?
Mnenie [13.5K]

Answer:

in physical science, an isolated system is either of the following:

1. a physical system so far removed from other systems that it does not interact with them.

2. a thermodynamic system enclosed by rigid immovable walls through which neither mass nor energy can pass.

Explanation:

4 0
3 years ago
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When naming ionic compounds does the roman numeral after the metal cation tell you how many anions will be there?
murzikaleks [220]

Answer:

no

Explanation:

the roman numeral tells you that the metal is a transition metals. transition metals have more than one oxidation state.

8 0
3 years ago
If more energy is released from a system, than absorbed, an ___ reaction has occurred
andrew-mc [135]
An exothermic reaction has occurred. You can remember that EXothermic means that energy is EXiting the system. If energy enters the system, it’s endothermic.
3 0
3 years ago
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