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
liraira [26]
3 years ago
6

Write a description of how you know a chemical reaction is occurring.

Chemistry
1 answer:
Sladkaya [172]3 years ago
4 0

Answer:

See explanation

Explanation:

Chemical reactions are also referred to as chemical change. A chemical change often leads to the formation of new substances and is not easily reversible.

A chemical reaction may be accompanied by the emission of heat and light, formation of a precipitate, evolution of gas, or a color change.

These observable physical effects may tell us weather a chemical reaction has taken place or not so we have to observe the system closely for any of these effects stated above.

You might be interested in
How many kJ of heat are required to melt 35.0 g of ice?
Verizon [17]
The awnser is d bc cause
5 0
3 years ago
An iron nail with a mass of 12 grams absorbs 12 Joules of heat. If the nail was initially at 25°C, what is the final temperature
elena-s [515]
The answer to “An iron nail with a mass of 12 g absorbs 15 J of heat. If the nail was initially at 28 °C, what is its final temperature?” is broken down into a number of easy to follow steps, and 27 words. Since the solution to 81P from 3 chapter was answered, more than 4841 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 81P from chapter: 3 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. This full solution covers the following key subjects: nail, iron, heat, initially, final. This expansive textbook survival guide covers 19 chapters, and 2045 solutions.
8 0
3 years ago
Draw the lewis structure for the polyatomic trisulfide s−23 anion. be sure to include all resonance structures that satisfy the
mezya [45]

The following are the steps involved in drawing Lewis structure of the polyatomic trisulfide anion S_{3}^{2-}:

Total number of valence electrons = (3 * 6) + 2 = 20 electrons

Resonance is not possible in this ion. The molecular geometry of the ion will be bent as there are two lone pairs and two bond pairs on the central atom.



3 0
3 years ago
Why is creativity important in constructing scientific explanations?
poizon [28]

D. Sometimes it is necessary to put forth new theories to explain  experimental results,

Explanation:

Creativity is important to science because sometimes, it is necessary to put forth new theories to explain experimental results.

Theories are explanation of scientific observations.

  • Most scientists are critical and creative thinkers.
  • They must be able to come up with a wide range of possible explanation to explain their findings.
  • The explanations must be scientific in nature and not fall out of the basic tenets of this way of thinking.
  • Therefore, scientists draw from their wealth of deductive reasoning to give explanations into an observed phenomenon.

learn more:

Purpose of conducting experiments brainly.com/question/5096428

#learnwithBrainly

6 0
3 years ago
A sample of the alloy “electrum” is 62% silver and 38% gold by mass; mass of part/
Tanzania [10]

Answer:

c

Explanation:

edge 2022

5 0
2 years ago
Other questions:
  • Science
    11·1 answer
  • Which substance acts as the anode in the lead-acid automobile battery?
    15·1 answer
  • **will mark brainliest**
    11·1 answer
  • Phosphine, PH₃, is a colorless, toxic gas that is used in the production of semiconductors as well as in the farming industry. W
    10·1 answer
  • Which of these is common to all chemical changes?
    12·1 answer
  • Two closed vessels contain chlorine gas at the same conditions of temperature and
    13·1 answer
  • Balancing equations help!!
    11·1 answer
  • propose a synthetic route for the synthesis of a named alkanal starting with ethyl formate and grignard reagent. ​
    6·1 answer
  • Your friend looks at a piece of ice and says “Solids, like ice, have a fixed shape because the particles are not moving.” Is you
    11·2 answers
  • What is the unit of measurement for the amount of electrical energy consumed during work?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!