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
Firlakuza [10]
3 years ago
5

Which is a sign of a chemical change? A) Ice cream left at room temperature melts. B) Calcium chloride is dissolved in H2O and d

isappears. C) Paint on a freshly painted wall dries and is no longer sticky. D) When H2S gas is bubbled into a lead acetate solution, a precipitate forms.
Physics
2 answers:
Eduardwww [97]3 years ago
7 0

D, because a physical change is when something changes but doesn't change into a new substance. A chemical change is when something changes into a new substance.

Katarina [22]3 years ago
5 0
Chemical change is any change that results in the formation of new chemical substances. (Thanks to google)

This the answer is D
You might be interested in
Are we real?Should we believe in hell and heaven?Should we take life seriously?Why do we feel like we are being pulled down from
nlexa [21]
Uhhhhh just sleep? Are you ok?
7 0
2 years ago
Read 2 more answers
A ball is being rolled by a normal push of 180N. It is opposed by friction which has a force of 61N and air resistance which has
Nina [5.8K]

Resultant force is basically the force left after everything is added.

if a ball is being pushed one one side with 180N, and being pushed on teh opposite side with 84N (I added friction and air resistance since they're acting on the same side), then the resultant force would be:

180N - 84N =<u> 96N</u>   (you can determine whether it's positive or negative based on the direction of the vector)

7 0
3 years ago
Help plzzzzzzzzzzzzzzzz!
aksik [14]
 

concave <span>ray diagrams were constructed in order to determine the general location, size, orientation, and type of image formed by concave mirrors. Perhaps you noticed that there is a definite relationship between the image characteristics and the location where an object placed in front of a concave mirror. but, convex</span><span>ray diagrams were constructed in order to determine the location, size, orientation, and type of image formed by concave mirrors. The ray diagram constructed earlier for a convex mirror revealed that the image of the object was virtual, upright, reduced in size and located behind the mirror. </span>
3 0
3 years ago
Atoms in a molecule held together through sharing ______. (points 3)
Wittaler [7]
Covalent and ionic bonds
8 0
3 years ago
Read 2 more answers
How many football fields (including the 10 yards in each end zone) would it take to make a mile?
Inessa05 [86]

Answer:

Explanation:

1760 yd/mi / 120 yd/field = 14⅔ fields/mi

4 0
3 years ago
Other questions:
  • An 8.0 m, 240 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground
    8·1 answer
  • 1. Say whether the following statements are true or false and explain why:
    9·1 answer
  • Why is it important for scientist to use the international system of units
    15·1 answer
  • Which type of experiment involves changing only one variable at a time
    14·2 answers
  • Why has the model of the atom changed over time?
    11·1 answer
  • DEFINE HEAT CAPACITY
    5·2 answers
  • Do not have definite size and always take the shape of their container,
    5·2 answers
  • Answer all of these questions and you will get the brainlist
    14·1 answer
  • What is the error in this representation of the steps involved in gene therapy?
    15·2 answers
  • A wire is joined to points X and Y in the circuit diagram shown. A diagram of a circuit with a power source on the left. Directl
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!