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
Vlada [557]
3 years ago
14

Rusting of nail are chemical change or physical change and say why

Chemistry
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

the rusting of iron is a chemical change because it is two substance reacting together to make a new substance.

Explanation:

Svetach [21]3 years ago
7 0

Answer:

Explanation:

‘it’s a chemical change because this may seem like a decomposition reaction because it seems like the nail is decomposing and falling apart.

You might be interested in
What does the term division of labor mean as it relates to cells?
lidiya [134]

Answer:

what each cells job is divided

Explanation:

7 0
3 years ago
sample of atmospheric gas collected at an industrial site is stored in a 250 mL amber glass bottle that has a pressure of 1.02 a
Nady [450]

Answer:- New pressure is 0.942 atm.

Solution:- The volume of the glass bottle would remain constant here and the pressure will change with the temperature.

Pressure is directly proportional to the kelvin temperature. The equation used here is:

P_1T_2=P_2T_1

Where, T_1 and T_2 are initial and final temperatures, P_1 and P_2 are initial and final pressures.

T_1 = 20.3 + 273.15 = 293.45 K

T_2 = -2.0 + 273.15 = 271.15 K

P_1 = 1.02 atm

T_2  = ?

Let's plug in the values in the equation and solve it for final pressure.

1.02atm(271.15K)=P_2(293.45K)

P_2=\frac{1.02atm*271.15K}{293.45K}

P_2 = 0.942 atm

So, the new pressure of the jar is 0.942 atm.


5 0
4 years ago
CLIOT
zhuklara [117]
The many electron diamonds around the central carbon are 1689
6 0
3 years ago
Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is
enot [183]

The dissolution of borax in water is a temperature dependent reaction. With the higher temperature, the salt dissolve quickly.

<h3>What is borax?</h3>

Borax is the hydrate salt of boric acid. It is white and widely used in cleaning and in laundry  detergent.

Borax is a salt that will dissolve in water at almost any temperature, with the exception of steam and ice.

However, as with any salt, the higher the temperature, the faster the salt dissolves, so speed is dependent on temperature. It will dissolve in cold water, but it will take longer.

Thus, the dissolution of borax in water is a temperature dependent reaction.

Learn more about borax

brainly.com/question/14724418

#SPJ4

8 0
2 years ago
What is the name of an atom with 3 protons and 4 neutrons?
asambeis [7]

Answer:

Those with 3 protons and 3 neutrons are known as the isotope lithium-6. Those with 3 protons and 4 neutrons are known as the isotope lithium-7.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Two major discoveries of the gold foil experiment
    13·1 answer
  • 2.
    11·2 answers
  • A metabolic pathway that ___ (oxidizes or reduces) an energy-rich source to produce ATP from ADP. Electrons are transferred from
    5·2 answers
  • How do you dilute an acid with water?
    15·1 answer
  • PLEASE HELP <br> What is the element dot structure for Li+1? Really confused about the +1 part.
    14·1 answer
  • How did organic compounds get their name? Explain how the word is related to its meaning.
    10·1 answer
  • In this experiment, you were asked to calculate your percent yield of alum assuming that you started with pure aluminum. Actuall
    10·1 answer
  • A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 96.0kPa. T
    7·1 answer
  • If the nucleus was the size of a tennis ball the atom would be the size of....?
    15·2 answers
  • When gas molecules collide with other gas molecules or the walls of a container, does it affect their speed?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!