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
never [62]
3 years ago
12

Help please, please,please. ....​

Chemistry
1 answer:
Vaselesa [24]3 years ago
3 0

Answer:

the answer is nitrogen

Explanation:

u can right this for explain your answer-

( nitrogen is unreactive

nitrogen doesn't support burning )

orrrrr

(contains no oxygen

all the other jars contain oxygen)

You might be interested in
Explain examples of a physical and chemical change of matter
monitta

HEY DEAR..

<u>PHYSICAL</u><u> </u><u>CHANGE</u>

<em>Those</em><em> </em><em>Changes</em><em> </em><em>in</em><em> </em><em>which</em><em> </em><em>no</em><em> </em><em>new</em><em> </em><em>substances</em><em> </em><em>are</em><em> </em><em>formed</em><em> </em><em>are</em><em> </em><em>called</em><em> </em><em>physical</em><em> </em><em>changes</em><em>.</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>temporary</em><em> </em><em>changes</em><em> </em><em>which</em><em> </em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>reversed</em><em> </em><em>easily</em><em> </em><em>to</em><em> </em><em>form</em><em> </em><em>the</em><em> </em><em>original</em><em> </em><em>substance</em><em>.</em>

<u>Example</u><u>:</u><u>-</u> <em>Melting</em><em> </em><em>of</em><em> </em><em>ice</em><em> </em><em>,</em><em> </em><em>Making</em><em> </em><em>a</em><em> </em><em>solution</em><em>, </em><em> </em><em>Glowing</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>electric</em><em> </em><em>bulb</em><em> </em><em>,</em><em> </em><em>freezing</em><em> </em><em>of</em><em> </em><em>water</em><em> </em><em>etc</em><em>.</em>

<u>CHEMICAL</u><u> </u><u>CHANGE</u>

<em>Those</em><em> </em><em>changes</em><em> </em><em>in</em><em> </em><em>which</em><em> </em><em>new</em><em> </em><em>substances</em><em> </em><em>are</em><em> </em><em>formed</em><em> </em><em>are</em><em> </em><em>called</em><em> </em><em>chemical</em><em> </em><em>changes</em><em>. </em><em>it</em><em> </em><em>means</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>permanent</em><em> </em><em>changes</em><em> </em><em>which</em><em> </em><em>are</em><em> </em><em>usually</em><em> </em><em>irreversible</em><em>. </em>

Example:- <em>Burning</em><em> </em><em>of</em><em> </em><em>charcoal</em><em>,</em><em> </em><em>fuels</em><em> </em><em>and</em><em> </em><em>cutting</em><em> </em><em>of</em><em> </em><em>trees</em><em>, </em><em> </em><em>even</em><em> </em><em>digestion</em><em> </em><em>of</em><em> </em><em>food</em><em> </em><em>is</em><em> </em><em>in</em><em> </em><em>chemical</em><em> </em><em>change</em><em>. </em>

HOPE ITS HELPFULLL

BE BRAINLY.

6 0
3 years ago
A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 42 g of water (with an
kogti [31]

The piece of unknown metal is in thermal equilibrium with water such that Q of metal is equal to Q of the water. We write this equality as follows:

-Qm = Qw

Mass of metal (Cm)(ΔT) = Mass of water (Cw) (ΔT)

where C is the specific heat capacities of the materials.

We calculate as follows:

-(Mass of metal (Cm)(ΔT)) = Mass of water (Cw) (ΔT)

-68.6 (Cm)(52.1 - 100) = 42 (4.184) (52.1 - 20)

Cm = 1.717 -----> OPTION C

8 0
3 years ago
Which state of matter has particles that vibrate in a rigid structure
dedylja [7]

Explanation:

Solids have definite shape and distinct boundaries as such the intermolecular forces between them is maximum

4 0
3 years ago
In which position are the earth, moon, and sun during a new moon?
RSB [31]

Answer:

They are in this position

4 0
3 years ago
When the highest occupied energy level of an atom is completely full of electrons, the atom is _____________________________?
scoundrel [369]
The answer is a valence electron
4 0
3 years ago
Other questions:
  • Electrons and protons (attract/repel) each other
    11·1 answer
  • Would would it be like without geneticists
    12·1 answer
  • Lithium has one valence electron. Bromine has seven valence electrons.How might they form a covalent bond?
    8·2 answers
  • Can two atoms with the same mass number ever be isotopes of each other ?
    6·1 answer
  • For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydroge
    11·1 answer
  • What is the volume of 6.50g of gold if the density of gold is 19.3g/ml?
    6·1 answer
  • Write the name for the following compound NH3​
    13·1 answer
  • Please help me with this question, if you can! :)
    5·1 answer
  • The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as
    7·1 answer
  • How do atoms explain the pattern that the mass of the products always equals the mass of the reaction?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!