1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kondaur [170]
3 years ago
13

Physical or Chemical change?

Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

Answer:   Chemical Change

Explanation:

because it probably doesnt change the physical anatomy of the object only the atoms/ molecule relations

You might be interested in
Select the keyword or phrase that will best complete each sentence. must undergo addition because they have easily broken tt bon
STatiana [176]

Alkenes must undergo addition because they have easily broken tt bonds.

Markonikov's rule states in the addition of HX to an unsymmetrical alkene, the H atom bonds to the less substituted carbon atom.

alkenes are unsaturated hydrocarbons because they have fewer than the maximum number of hydrogen atoms per carbon.

Alkyl halides have good leaving groups and therefore readily undergo substitution and elimination reactions.

In hydroboration, the boron atom bonds to the substituted carbon.

Hydroxides, amines and alcoxides undergo substitution and elimination, but can do so only when the heteroatom is made into a good leaving group.

8 0
3 years ago
An earthquake’s magnitude is a measure of the
marissa [1.9K]
An earthquake's magnitude is a measure of how much energy an earthquake releases. Typically, the richter scale is used.
8 0
3 years ago
Read 2 more answers
Lewis dot structure for N3-
labwork [276]

Answer :

The steps involved in the electron dot structure of N^{3-} are :

First we have to determine the total number of valence electron in N^{3-}.

Number of valence electrons in N = 5

The charge on N is (-3). So, we add 3 electrons.

Total number of valence electrons = 5 + 3 = 8 electrons

The image is shown below.

4 0
3 years ago
Read 2 more answers
The solubility of kcl in ethanol is 0.25 g / 100 ml at 25 oc. how does this compare to the solubility of kcl in water?
Furkat [3]
Solubility data of a certain solute with a certain solvent is empirical. There are constant values for this at varying temperatures. For KCl in water at 25°C, the solubility is 35.7 g/100 mL of water. When you compare this with the solubility data of KCl with ethanol, this means that KCl is more soluble in water than in ethanol. This is true because KCl is an ionic salt which is very soluble in water.
8 0
3 years ago
(a) Calculate the total volume (in liters) of air an adult breathes in a day. (b) In a city with heavy traffic, the air contains
Furkat [3]

Answer:

a) V air/day = 8640 L air  an adult breaths / day

b) 0.0181 L CO intake a person / day

Explanation:

a) one average person has 12 breaths for min:

  • P = 12 breath/min

in each breath it take an average  of 500 mL on air.

  • 1 breath ≅ 500 mL air

⇒ 12 breath / min * 500mL air / breath = 6000 mL air / min

the average air volume per day of a person is:

⇒ Vair/day = 6000 mL air / min * (60 min / h) * ( 24 h / day ) = 8640000 mLair / day * ( L / 1000 mL)

⇒ V air / day = 8640 L / day

b) 2.1 E-6 L CO / L air * 8640 L air / day = 0.0181 L CO / day

4 0
3 years ago
Other questions:
  • Which processes represent one chemical change in one physical change
    11·2 answers
  • PLZ HELP
    12·1 answer
  • Using the periodic table, choose the more reactive nonmetal. Si or S
    8·2 answers
  • Choose the pieces of evidence that supported the existence of Pangaea and continental drift theory.
    10·2 answers
  • Which common mineral is most resistant to both chemical and mechanical weathering?
    11·1 answer
  • As much as 25% of the fruits and vegetables grown in Chinese agricultural regions rot before they can be brought to market. Whic
    5·2 answers
  • a skateboarder wants to skate down the ramp at a skate park he will want the forces acting on him to be
    11·1 answer
  • Europium orbital diagram
    14·1 answer
  • Which scientist is credited with developing the fist scientific atomic theory
    13·1 answer
  • ASAP PLEASEE
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!