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
Simora [160]
3 years ago
9

What does chemistry mean

Chemistry
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

<em>The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alternations in the constitution of their molecules is chemistry.</em>

Explanation:

You might be interested in
(a) What human activity is responsible for the formation of smog and acid rain? (b) What kinds of harm does photochemical smog c
Lunna [17]

but u have a good person to talk about that is a bit of an act like I swear to God that

Explanation:

can you send the invoice to the b account on your website so I just put in a sec and I can send it here and send you the info for my credit card

6 0
3 years ago
2 moles of substance A contains 12.04 × 1023 atoms.
professor190 [17]

Answer:

2 moles of Substance B

Explanation:

Because 1 mole of any substance contains 6.02× 10²³ particles either atoms, molecules, ions or even electron(Avogardo Constant)

Therefore 12.04 × 10²³/ 6.02× 10²³  =  2 mole of Substance B

7 0
3 years ago
Round off the following to three significant figures 0.032000000cg
tino4ka555 [31]
<span>0.032000000 cg

Rounding off  ........>

0.0320 cg

The last zero means the measurement is accurate to that digit
</span>
6 0
3 years ago
Potassium chlorate is a white, crystalline solid. It can be broken down into potassium chloride (a salt)
lions [1.4K]

Answer:

Notice that the number of atoms of

K

and

Cl

are the same on both sides, but the numbers of

O

atoms are not. There are 3

O

atoms on the the left side and 2 on the right. 3 and 2 are factors of 6, so add coefficients so that there are 6

O

atoms on both sides.

2KClO

3

(

s

)

+ heat

→

KCl(s)

+

3O

2

(

g

)

Now the

K

and

Cl

atoms are not balanced. There are 2 of each on the left and 1 of each on the right. Add a coefficient of 2 in front of

KCl

.

2KClO

3

(

s

)

+ heat

→

2KCl(s)

+

3O

2

(

g

)

The equation is now balanced with 2

K

atoms,

7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLIEST
Phoenix [80]

Answer:

Coefficients represents no of moles while subscripts represent no of atoms.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The first table was arranged by atomic mass, but later Mosely improved it by arranging by _______________.
    8·2 answers
  • What is the molar mass of a substance
    5·2 answers
  • An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or
    14·1 answer
  • Which of the following is a farming method that helps reduce the effects of wind erosion?
    14·2 answers
  • Write the complete balanced equation for Manganese &amp; sulfuric acid --&gt; Manganese (II) sulfate &amp; water &amp; sulfur di
    6·1 answer
  • Number 16 pls answer
    6·1 answer
  • Iodine is an elemnt, but is Iodide an element or it is a compound?
    9·2 answers
  • How many valence electrons are found in a neutral atom of arsenic?
    9·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    8·1 answer
  • How many grams are in 3.4 moles of Lead (IV) Sulfate (Pb(SO4)2)? ) Molar mass: 303.26 g/mol 131.0840​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!