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
irina1246 [14]
4 years ago
14

Many scientists say, “There is no such thing as a closed system in the universe.” For example, even an unopened can of soda is a

n open system.
example explains why an unopened can of soda is an open system?
A.The unopened can of soda can become cold if placed in a refrigerator, allowing for heat to transfer between two systems.
B.The mass of the unopened can will eventually disappear.
C.Over time, chemical components of the unopened can of soda will change.
D.The unopened can of soda will become an open system If the can is opened.
Chemistry
1 answer:
tankabanditka [31]4 years ago
7 0
I believe the answer is "A."
You might be interested in
Find the number of moles of water that can be formed if you have 210 mol of hydrogen gas and 100 mol of oxygen gas.
liraira [26]
<span>200 moles The balanced equation for creating water from hydrogen and oxygen gas is 2H2 + O2 => 2H2O So for every mole of oxygen gas, you need two moles of hydrogen. So looking that the amount of oxygen and hydrogen you have, it's obvious that oxygen is the limiting reactant since 100 moles of oxygen will consume 200 moles of hydrogen. While 210 moles of hydrogen requires 105 moles of oxygen. Now for each mole of oxygen gas you use, you create 2 moles of water. So 100 mol * 2 = 200 mol So you can create 200 moles of water from the given amounts of reactants.</span>
6 0
4 years ago
1. What is the name of the covalent compound CCl4?2. What is the name of the covalent compound N2O5?
mr_godi [17]

Answer:

It's carbon tetrachloride.

It's Dinitrogen Pentoxide.

Hope this helped!!!

5 0
3 years ago
Read 2 more answers
A. List the potential acute health effects.
AleksandrR [38]

When we handle chemical substances we must be very careful because they can put our:

  • Physical integrity.
  • Health
  • Life at risk.

<h3>What is a chemical?</h3>

A chemical substance is a chemical compound resulting from the union of two or more chemical elements. Compounds have different uses depending on their properties. However, some can be harmful and life-threatening to humans.

<h3>Potential acute effects.</h3>

The potential acute effects of some compounds may be related to skin contact causing:

  • Inflammation
  • Redness
  • Rash
  • Burns
  • Dry
  • Among other.

On the other hand, the chronic effects of chemical compounds can be:

  • Diseases in the central nervous system.
  • Respiratory diseases.
  • Skin diseases.
  • Degenerative diseases of the bone system.

<h3>What to do when a chemical is ingested?</h3>

There are a large number of chemical substances and each one has different properties. Therefore, it is very difficult to generalize about a treatment in case of ingestion. What must be done is to know the level of risk of the substance that is being handled and avoid ingesting it at all costs. However, if it is ingested, go to the emergency room.

<h3>Product flammability</h3>

Not all chemical compounds have the same flammable response to fire. Due to the above, it is necessary to identify if the substance that we are handling is highly or slightly flammable, for this we can consult the manual of the substance or the label of its packaging.

<h3>3 Chemical that produces a potentially dangerous reaction with hydrochloric acid.</h3>

According to some studies and the hydrochloric acid safety data sheet, it can have dangerous reactions with:

  • Reacts violently with water.
  • Gives off hydrogen in reaction with metals.
  • Keep away from strong bases.

<h3>How to handle small spills?</h3>
  • Contain the spill.
  • Soak up with inert absorbent material.
  • Prevent the product from entering the sewage system.
  • Keep in suitable, closed containers for disposal.

<h3>Personal Protection</h3>

When we handle chemical substances we are facing a potential risk. Due to the above, protocols have been developed for its handling, which include the use of protection elements such as:

  • Gloves
  • Glasses
  • Helmet
  • Mask
  • Boots
  • Special suit.
  • Among others.

Learn more about chemical compounds in: brainly.com/question/14498747

5 0
3 years ago
How many electrons and how many protons <br> Al3+
NemiM [27]
Al+3is the third electron ionization level of the atom Al. Al has an atomic number of 13, thus it has 13 protons and electrons. By shooting a photon with a certain amount of energy (the energy in kj/mol) the atom will be ionized and lose the electrons. 13-3 = 10 The total amount of electrons in Al3+ is 10 <span>*The energy required to ''detach'' 3 electrons from the 3s and 3p orbital.</span>
8 0
4 years ago
Plants make their own food and are not required to consume food for energy. Into which category does this characteristic cause p
shepuryov [24]

Answer:

Autotrophic or Producers

Explanation:

They are often called producers because they make their own food.

7 0
3 years ago
Other questions:
  • How do you preform water displacement
    15·1 answer
  • What are the units of measurement for molarity?
    7·2 answers
  • urgent please help!!!!!! Which factors add to the greenhouse effect and are caused by human activities? Select two options. a de
    15·1 answer
  • Which cell organelle is where proteins are made? A. nucleus B. ribosome C. vacuole D. mitochondrion
    15·2 answers
  • 0.7 moles of uranium to grams of uranium​
    13·1 answer
  • Which branch of chemistry would be used by physicians when deciding
    12·1 answer
  • You are a NASCAR pit crew member. Your employer is leading the race with 20 laps to go. He just finished a pit stop and has 5.0
    9·1 answer
  • Which of the following object has the LESS momentum?
    12·1 answer
  • a space probe identifies a new element in a sample collected from an asteroid. successive ionization energies, in attojoules per
    5·1 answer
  • What is difference between liquid steel and molten steel
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!