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
gogolik [260]
3 years ago
11

What is a compound in chemistry

Chemistry
1 answer:
nignag [31]3 years ago
7 0
A compound is a substance formed when two or more chemical elements are chemically bonded together. In mixtures, the substances present are not chemically bonded together.
You might be interested in
A substance undergoes a change. Which of the following indicates that the change was a chemical change?
hoa [83]
The answer is A. <span>The substance changed shape.

There you go!</span>
4 0
3 years ago
Write the fraction of the mass of kcl produced from 1 g of k2c03​
Minchanka [31]

Mass of KCl= 1.08 g

<h3>Further explanation</h3>

Given

1 g of K₂CO₃

Required

Mass of KCl

Solution

Reaction

K₂CO₃ +2HCl ⇒ 2KCl +H₂O + CO₂

mol of K₂CO₃(MW=138 g/mol) :

= 1 g : 138 g/mol

= 0.00725

From the equation, mol ratio K₂CO₃ : KCl = 1 : 2, so mol KCl :

= 2/1 x mol K₂CO₃

= 2/1 x 0.00725

= 0.0145

Mass of KCl(MW=74.5 g/mol) :

= mol x MW

= 0.0145 x 74.5

= 1.08 g

6 0
3 years ago
What is the mass of an electron?
Lesechka [4]

Answer:

the answer is 0 amu I hope it helps

6 0
3 years ago
The half of the moon facing the sun is always lit, but the different phases happen because:
zvonat [6]

Answer:

we only see parts of the lit side as the moon goes around the earth

Explanation:

Unlike the sun, the moon orbits the Earth. This is the reason why we see the <em>different phases of the moon.</em> The reflection of the moon is being illuminated back to us with the help of the sun. So, as the moon circles the Earth, we only see parts of the lit side. Such changes helps us see the moon in different phases such as<em> </em>the <em>Third Quarter, Crescent, New Moon, Full Moon, etc.</em>

For example, during "Full Moon," <em>the moon's entire face is lit up by the sun</em>. Thus, we see the entire moon's lit portion.

Thus, this explains the answer.

7 0
3 years ago
What is landform? please help
KATRIN_1 [288]

Answer:

A landform is a natural or artificial feature of the solid surface of the Earth or other planetary body.

Explanation:

For example, valleys, plateaus, mountains, plains, hills etc.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the [h3o+] in a solution with a poh = 5.20?
    7·1 answer
  • How many liters of oxygen are required to burn 3.86 l of carbon monoxide?
    13·2 answers
  • Heart cells require a certain balance of sodium and potassium ions to function. The blood, which is approximately 83% water, car
    8·1 answer
  • At a certain temperature this reaction follows first-order Kinetics with a rate constant of 0.0660
    13·1 answer
  • What causes gas particles to collide with the walls of their containers?
    9·1 answer
  • Calculate the standard cell potential at 25 ∘c for the reaction x(s)+2y+(aq)→x2+(aq)+2y(s) where δh∘ = -793 kj and δs∘ = -319 j/
    11·1 answer
  • Be sure to answer all parts. The percent by mass of bicarbonate (HCO3−) in a certain Alka-Seltzer product is 32.5 percent. Calcu
    5·1 answer
  • When 2.35 g of potassium reacts with excess water, what mass of hydrogen gas is formed?
    14·1 answer
  • HELP QUICK!!!!!!!!!!
    9·1 answer
  • Rules for naming ionic compounds wiht transition metal
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!