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
Lady bird [3.3K]
3 years ago
5

Which is a sign of a chemical change?

Chemistry
1 answer:
Igoryamba3 years ago
7 0
The correct answer for the question it is option  

>>>>D<<<<

%100 sure 

if you need another answer welcome to come

You might be interested in
What role does chlorophyll play in photosynthesis?
Elina [12.6K]
Chlorophyll captures the sun's energy and is used as energy to complete the photosynthesis process
4 0
2 years ago
How many atoms are in 3.05 grams of copper?
vfiekz [6]

6.02 x10^23 atom  

3.5g x 1mol/63.55g Cu x 6.02 x 10^23/ 1mol=

3.32 x 10^22 atoms

5 0
3 years ago
Which word equation represents a neutralization reaction
Vlad1618 [11]
Base+salt > acid +alkali > neutralization i think this is the reaction
8 0
2 years ago
Read 2 more answers
What is the concentration of a potassium iodate solution after you complete the following porcedure? Pipette 10 mL of a 0.31 M p
zubka84 [21]

<u>Given:</u>

Initial concentration of potassium iodate (KIO3) M1 = 0.31 M

Initial volume of KIO3 (stock solution) V1 = 10 ml

Final volume of KIO3 V2 = 100 ml

<u>To determine:</u>

The final concentration of KIO3 i.e. M2

<u>Explanation:</u>

Use the relation-

M1V1 = M2V2

M2 = M1V1/V2 = 0.31 M * 10 ml/100 ml = 0.031 M

Ans: The concentration of KIO3 after dilution is 0.031 M

4 0
2 years ago
Identify the correct descriptions of beta particles.
FrozenT [24]

Answer:

a. A beta particle has a negative charge. d. A beta particle is a high-energy electron.

Explanation:

Identify the correct descriptions of beta particles.

a. A beta particle has a negative charge. YES. A beta particle is originated in the following nuclear reaction: ¹₀n ⇒ ¹₁H + ⁰₋₁e (beta particle.)

b. A beta particle contains neutrons. NO. It is a electron originated in the nucleus.

c. A beta particle is less massive than a gamma ray. NO. Gamma rays don't have mass while a beta particle has a mass which is half of one thousandth of the mass of a proton.

d. A beta particle is a high-energy electron. YES. Beta particles are nuclear originated hig-energy electrons.

6 0
2 years ago
Other questions:
  • Are the particles in a solid motionless ?
    9·1 answer
  • What do u know about a gas's molecules
    6·2 answers
  • An oxybromate compound, kbrox, where x is unknown, is analyzed and found to contain 43.66 % br.
    8·1 answer
  • How many moles are in 155 grams of aluminum
    9·1 answer
  • If a hydrate of the formula
    12·1 answer
  • 2H2 + O2 --&gt; 2H2O can be classified as what type of reaction?
    6·2 answers
  • How many atoms of Oxygen (O) are there in the products of the following equation:
    6·1 answer
  • How many products might be formed on chlorination of o-xylene (o-dimethylbenzene), m-xylene, and p-xylene
    14·1 answer
  • 2
    14·1 answer
  • Help would be much appreciated! i'll mark brainliest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!