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
Nutka1998 [239]
4 years ago
7

Identify common signs that a chemical reaction has occurred

Chemistry
1 answer:
creativ13 [48]4 years ago
6 0

Answer:

The five conditions of chemical change are color change, the formation of a precipitate, formation of a gas, odor change, temperature change.

You might be interested in
Calculate the number of grams of C2H6 in 4.6 miles of C2H6
Bezzdna [24]
M (C2H6) = n × M = 4.6 × 30 = 13.8 g.
3 0
3 years ago
The elements that touch the zigzag line are classified as
svp [43]

On the periodic table everything to the right of the line is a non metal

Everything to the left is a metal. So the line crosses to the right is NM to left is M

5 0
3 years ago
What is “the process in which electrons are rearranged without direct contact”???
Anastasy [175]

Answer:

Induction

Explanation:

When a body is brought in contact with another, electrons are rearranged by contact.

When a body is rubbed against one another, charging by friction occurs.

The process whereby electrons are rearranged without direct contact with one another is called induction.

By induction electrons can get charged without them having to be in contact with one another.

  • When a charged body is brought to the vicinity of the electrons, either an attraction or repulsion force is set up.
  • Similar charges causes repulsion
  • If a negatively charged body is brought near the electrons, there would be heavy repulsion and the electrons would be forced to rearranged.
  • This effect is product as a result of a force field.
7 0
3 years ago
The lewis structure of pf3 shows that the central phosphorus atom has ________ nonbonding and ________ bonding electron pair(s)
vfiekz [6]
The Lewis structure of PF3 shows that the central phosphorus atom has one non bonding and three bonding electron pairs. In this compound each Phosphorus atom contributes 5 valence electrons while each fluoride contributes 7 valence electrons making a total of 26 valence electrons. The central Phosphorus atom forms single bonds with each of the fluoride atoms. Phosphorus, therefore ends up with a non-bonding pair since the fluoride atoms already have 8 electrons around them. <span />
6 0
3 years ago
Read 2 more answers
As the temperature of a gas increases with the volume remaining constant, the pressure of the gas A) decreases B) increases C )
Bess [88]

Answer:

B) increases

higher temperature = higher pressure

8 0
3 years ago
Other questions:
  • Choose all the answers that apply. Lakes are recharged by _____. 1.evaporation 2.precipitation 3.rivers 4.transpiration 5.ground
    12·2 answers
  • Smallpox is a virus with a fatality rate of about 30%, and those that survive the disease have terrible scarring and lingering p
    14·2 answers
  • What profession is responsible for providing short term care for people being transorted to the hospital?
    11·1 answer
  • a mole of carbon dioxide (co2) has 12.0 grams of carbon (c) and 32.0 grams of oxygen (o). what is the percent composition of car
    11·1 answer
  • Which of the quadratic functions has the narrowest graph? (1 point) y = –x^2 y = 1/4x^2 y = 4x^2 y = 1/9x^2
    13·2 answers
  • 1. How is the modern periodic table organized?
    11·1 answer
  • What is the total pressure in units of kPa in a 7.85 L container that contains 4.45 moles of N2 and 2.45 moles of O2 at a temper
    9·1 answer
  • The __________ system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli. *
    11·2 answers
  • Identify a human activity that impacts the land negatively then describe a positive action that can help rude effects caused by
    7·1 answer
  • Who developed the concept that the total pressure of a mixture of gases is the sum of their partial pressures?.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!