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
Elza [17]
3 years ago
5

Do all systems have energy?

Chemistry
1 answer:
svet-max [94.6K]3 years ago
6 0
Yes they do you are correct
You might be interested in
Which of the following contains a nonpolar covalent bond?
svet-max [94.6K]
I think the answer is C. 02
3 0
2 years ago
What interacted directly with the photographic plates to cause images in Becquerel’s experiment?
Anna [14]
Answer: A. uranium salt

Becquerel made a conclusion that it was the uranium that causes the images found in the photographic plates. Though his theory was disproved during the first time,he continued to develop it. Then, it is through this experiment that Becquerel discovered radioactivity.

7 0
3 years ago
Write an equation that shows the formation of a manganese(II) ion from a neutral manganese atom.
bixtya [17]

Answer:

Mg ---> Mg²⁺+ + 2e⁻

Explanation:

4 0
2 years ago
Read 2 more answers
Someone pls help me I will make you brain
Andreyy89

c-  i and iii

I hope this helps

6 0
2 years ago
Cuando el oxígeno reacciona con el calcio produce un sólido blanco muy utilizado en la preparación de cementos. ¿Cuál de las sig
8_murik_8 [283]

Answer:

2Ca + O₂ → 2CaO

Explanation:

Cuando el Calcio (Ca) reacciona con oxígeno (O₂) se produce cal (CaO). La cal es un sólido inodoro de color blanco a grisáceo. La cal es un óxido que se encuentra presente en el cemento y su cuantificación permite determinar la calidad y el tipo de cemento a utilizar.

La reacción que describe el proceso anterior es:

Ca + O₂ → CaO

Para balancear los oxígenos, se deben poner 2 CaO como producto:

Ca + O₂ → 2CaO

Para balancear los calcios, se pone como coeficiente del Ca un 2:

<h3>2Ca + O₂ → 2CaO</h3><h3 />

Esta última es la reacción que describe el proceso anterior

6 0
2 years ago
Other questions:
  • After Frank Palko was sentenced to death by the state of Connecticut, the Supreme Court ruled that
    15·2 answers
  • 1. The term _________<br> refers to the chemical potential of hydrogen.
    10·2 answers
  • We change a gas to liquid by ___ the temperature and ___the pressure
    15·1 answer
  • How to solve this: a small dog has consumed a dangerous amount of apap. the vet has ordered: rx acetylcysteine 150mg/kg/stat. yo
    7·1 answer
  • Which statements describe an element? Check all that apply.
    6·1 answer
  • Who arranged the first periodic table.
    12·1 answer
  • How many primary oxygen systems are there? One Five Three Ten
    11·1 answer
  • What is the muscle that when contracted, it allows the lungs to fill with air?
    8·2 answers
  • 2CO (g) + O2 (g) → CO2 (g)<br><br> How many grams of O2 are needed to react with 6.64 L of CO2?
    9·1 answer
  • 14
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!