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
Makovka662 [10]
3 years ago
10

Two chemicals are mixed together and a gas is produced. *chemical change physical change ​

Chemistry
1 answer:
givi [52]3 years ago
3 0

Answer:

chemical change

Explanation:

chemical change is when a substance combine with another substance to form a new substance.

You might be interested in
How many valence electrons does the Lewis structure for a chlorine atom show
ohaa [14]

Answer: D

Explanation:

Chlorine is in group 7 or (VII) in Roman numerals, which means it has 7 balance electrons. It only needs one electron to become stable, hence it is next to the noble gases

6 0
3 years ago
Read 2 more answers
What is the name of the following chemical compound?
Lynna [10]

Answer: Dinitrogen pentoxide

Explanation:

5 0
3 years ago
Read 2 more answers
Calculate the mass (in g) of 2.1 x 1024 atoms of W.
Monica [59]
Atomic mass W = 183.84 u.m.a

183.84 g ----------- 6.02x10²⁴ atoms
?? g ---------------- 2.1x10²⁴ atoms

2.1x10²⁴ x 183.84 / 6.02x10²⁴ =

3.860x10²⁶ / 6.02x10²⁴ = 641.30 g

hope this helps!
4 0
3 years ago
A carpenter uses sandpaper on a piece of wood. Before, the wood felt rough. After, the wood felt smooth. Did the friction betwee
frosja888 [35]

Answer:

<em>Friction between the hand and the wood decreased.</em>

Explanation:

The texture of the wood went from rough → smooth! This means friction between the hand and the wood was notably decreased.

According to this prompt, the carpenter used <em>sandpaper </em>against the wood. Sandpaper just so happens to be a very abrasive substance. The sandpaper polished and leveled out the wood which wore all the jutting bits away.- overall, making it much smoother and more pleasant to touch!

<em>Hope I was of assistance! </em><u><em>Have a nice day and Spread the Love! <3</em></u>

4 0
3 years ago
17. D i don’t know if i’m writing it wrong or don’t know how to balance but ye
leva [86]

Answer:

2 KL + Pb(NO3)2 = 2 KNO3 + PbL2

Explanation:

KL + Pb(NO3)2 = KNO3 + PbL2 is unballanced equation, just balance from there :)

8 0
3 years ago
Other questions:
  • Which of the following is not a method of heat transfer?
    9·1 answer
  • What substance is given off when salt is heated gently?​
    5·1 answer
  • 30 POINTS!!!!!! PLEASE HURRY!!!! Four boxes of increasing size and weight must be pushed up a ramp. To push the boxes at the sam
    9·2 answers
  • As the sun heats the surface of the ocean, two layers of water result. What separates the layers.
    7·1 answer
  • What important processes in your body depend on mitosis
    12·1 answer
  • Following a volcanic eruption which event is usualy the last one to be observed
    13·2 answers
  • When drawing a covalent lewis dot diagram its important to ensure that:
    15·1 answer
  • Which atom in the O-F bond has a partial positive charge (δ⁺)?
    5·1 answer
  • The amount of matter in a given amount of volume is referred to as
    12·1 answer
  • What is the molarity of a solution if 0.529 moles of LiCl is dissolved in 687 mL of water?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!