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Licemer1 [7]
2 years ago
14

When an acid and a base react, a particular type of salt is formed. This is an example of what type of reaction?

Chemistry
2 answers:
Anika [276]2 years ago
6 0

Answer:

B)chemical only

Explanation:

Now, it is important to understand that the reaction described in question is a neutralization reaction which is type of double displacement reaction. It is definitely a chemical reaction.

Now there is a difference between physical and chemical reaction. A physical reaction is one in which matter undergoes a physical change for example melting. In melting, a substance change its form but no change in the structure and composition of molecules occur.

On the other hand, in chemical reaction, change occur on molecular level. Old molecules convert into new molecular compositions. If you take example of Sodium Hydroxide and Hydrochloric acid here

NaOH + HCl → NaCl + H2O

Now you can see that both NaOH and HCl molecules decomposed into new molecules of H2O and NaCl.

Please notice that in physical reaction, no new substance is formed, but only physical appearance changes, that is why, we have to exclude third option "both physical and chemical".

kramer2 years ago
5 0
Physical and chemical
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1
zzz [600]

Answer:

i think kinetic energy sorry if I'm wrong.

6 0
3 years ago
The s orbitals are said to be non directional what does it mean
ser-zykov [4K]

s - orbitals have a spherical symmetry and the probability of finding an electron in an s orbital is equal for equal distance in x, y or z direction. i mean the probability of lets say an electron found at a distance 10 units from nuclues, its value will be same for x, y and z when u go 10 units distnace from nucleus in these directions. then the value at 5 units would be some value which also would be same for x,y and z.

Easier explanation is that if u place a ball, can u tell towards which axis it is oriented? no, its equally in all directions. So, non- directional.

However, if you have p- orbitals like dumb bells, a dumb bell can be oriented in  three different directions, either x or y or z. see the pics.

3 0
3 years ago
Which is the dependent variable in an experiment? 1.what I observe. 2. what I keep the same 3.What I change in the experiment. H
shtirl [24]

Answer:

1.what I observe.

Explanation:

The dependent variable in an experiment is what is being observed in the experimental procedure.

This variable is the one that is closely tied to the effects originating from changing the independent variables.

  • Independent variables are the ones that cause the observation being studied.
  • The effects produced and then studied are the dependent variables.
3 0
3 years ago
Q2. Which formula represents a homogeneous mixture?
bija089 [108]

Answer:

D) HCl(aq)

Explanation:

A homogeneous mixture can be defined as any liquid, solid or gaseous mixture which has an identical or uniform composition and properties throughout any given sample of the mixture. In Chemistry, all solutions are considered to be a homogeneous mixture.

In this scenario, the chemical formula which represents a homogeneous mixture is aqueous hydrogen chloride, HCl(aq). The aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride. This ultimately implies that, aqueous hydrogen chloride HCl(aq) is a solution of hydrogen chloride in water and it is commonly referred to as Hydrochloric acid.

Given by the chemical equation;

HCl(aq) + H_{2}O(l)  →  H_{3}O^{+} (aq) + Cl_{−}(aq)

8 0
3 years ago
Hello can you help???
MrRissso [65]
64: C
65: D because weathering is defined as rock being eroded/changed
hope i could help
6 0
3 years ago
Read 2 more answers
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