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
IRISSAK [1]
3 years ago
9

Which identifies that a chemical reaction has occurred?

Physics
1 answer:
mixer [17]3 years ago
8 0
A change of colour, heat being released or fizzing (a gas being released)
You might be interested in
Rosný bod závisí od ?
WITCHER [35]

Answer:

what did u say and what language are you speaking in

8 0
3 years ago
How does charging by conduction work?
anzhelika [568]

Answer:

During charging by conduction, both objects acquire the same type of charge. If a negative object is used to charge a neutral object, then both objects become charged negatively. ... In this case, electrons are transferred from the neutral object to the positively charged rod and the sphere becomes charged positively.

6 0
3 years ago
A 45-gram object that has a volume of 9 mL has a density of
yanalaym [24]

Answer:

<h2>  The answer is </h2><h2>a. 5g/mL</h2>

Explanation:

Given data

mass m= 45g

volume v= 9mL

we know that density=m/v

substituting our given data we have

density=\frac{45}{9} =5g/mL

What is Density?

The Density of a body can be defined as the ratio of mass to volume,

or

Density, mass of a unit volume of a material substance. The formula for density is Density= \frac{mass}{volume},

where d is density,

M is mass, and

V is volume.

Density is commonly expressed in units of grams per cubic centimetre.

7 0
3 years ago
What is needed to give a large boulder a large acceleration?
jok3333 [9.3K]
More force needs to be applied
6 0
3 years ago
Read 2 more answers
Which statement is true about a polarized object?
8090 [49]

Answer: Option C: The number of positive and negative charges can be same.

A substance is said to be polarized when there is non-uniform distribution of electric charge. When there gain or loss of electrons, ions are formed. It is not necessary that polarized object is metal. For example, Water is polarized. The oxygen atoms have partial negative charge and hydrogen atoms have partial positive charge.

5 0
3 years ago
Other questions:
  • Now explore friction force. Set the piece of plastic or wood on the table and push it steadily across the tabletop using your fi
    6·1 answer
  • Which of these types of organisms is there more of on Earth? A. goat B. human C. dandelion D. bacterium
    10·1 answer
  • A blue ball is thrown upward with an initial speed of 21.8 m/s, from a height of 0.9 meters above the ground. 2.7 seconds after
    9·1 answer
  • What is the speed of an object at rest
    9·1 answer
  • How does deformation by drawing of a semicrystalline polymer affect its tensile strength?
    9·1 answer
  • A 4 kg box on the ground has a total of three horizontal forces on it as shown. The acceleration of the box is...
    8·1 answer
  • 10. At point A, a runner is jogging 5 m/s. Forty seconds later, at point B
    13·1 answer
  • What are the 3 ways to use friction?​
    8·1 answer
  • A TV set is pushed a distance of 2 m with a force of 20 N how much work is done on the set ​
    15·1 answer
  • 9) 25cm³ of a liquid x of density 1.2g/cm³ is mixed with liquid of volume 30 cm³ and 0.9g/cm³ without change in volume. Calculat
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!