sodium chloride is a compound that is stable because its constituent elements namely chlorine and sodium have formed ionic bonds with each other and their outer energy shells are filled with 8 electrons.
Sodium on its own has 11 electrons. Two of these are in the 1st energy level, eight in the 2nd energy level and one in the 3rd energy level. This arrangement is highly unstable rendering the element sodium highly unstable and reactive. It will burst into flames immediately on exposure to air and can burn through human flesh if it comes into contact with it.
Chlorine at room temperature is a poisonous gas. It has 17 electrons in the arrangement 2:8:7 . The outermost shell has 7 electrons and so this element is fairly stable but will readily react with human lungs with fatal consequences.
So each of these two elements on their own are deadly, but when the two react together, sodium gives up its single electron on the outer energy shell to chlorine which readily accepts it and fills its outer shell to make 8 forming ionic bonds and is thus the two are completely stable and cannot explode or react in any other way because the outer shell of each of them is now filled with 8 electrons.
Chemicals can enter the air, water, and soil when they are produced, used or disposed.
A chemical is any substance consisting of matter. This includes any liquid, solid, or gas. A chemical is any pure substance (an element) or any mixture (a solution, compound, or gas).
Chemicals are the basic building blocks that make up all living and non-living things on Earth.
Chemicals can enter the air, water, and soil when they are produced, used or disposed.
Their impact on the environment is determined by the amount of the chemical that is released, the type and concentration of the chemical, and where it is found.
Some chemicals are of concern as they can work their way into the food chain and accumulate and/or persist in the environment for many years.
Some chemicals are synthetic, and are used in every day products from medicines to computers to fabrics and fuels.
Other chemicals are not made deliberately but are by-products of chemical processes.
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Answer:
Many chemicals are used to improve the quality of our lives and most are not harmful toWhat are chemicals?
Chemicals are the basic building blocks that make up all living and non-living things on Earth. Many chemicals occur naturally in the environment, and may be found in our air, water, food, and homes. Some chemicals are synthetic, and are used in every day products from medicines to computers to fabrics and fuels. Other chemicals are not made deliberately but are by-products of chemical processes.
the environment or human health. However, some chemicals have the potential to cause harm, in certain amounts, and should only be used when the potential risks are appropriately managed.
How do chemicals affect the environment?
Chemicals can enter the air, water, and soil when they are produced, used or disposed. Their impact on the environment is determined by the amount of the chemical that is released, the type and concentration of the chemical, and where it is found. Some chemicals can be harmful if released to the environment even when there is not an immediate, visible impact. Some chemicals are of concern as they can work their way into the food chain and accumulate and/or persist in the environment for many years.
What is the Government doing to protect our environment?
The Government of Canada plays a key role in protecting the environment from harmful chemicals. In Canada, the manufacture, import and use of chemicals are regulated by a number of laws, including the Canadian Environmental Protection Act, 1999, the Hazardous Products Act, the Food and Drugs Act, and the Pest Control Products Act.
The Canadian Environmental Protection Act, 1999, is the primary piece of legislation used to protect the environment from harmful chemicals. At the federal level, the environment is also protected through other legislation such as the Fisheries Act, which can also be used to protect water and aquatic life. In total, the Government of Canada is responsible for over 25 different Acts covering environment and environmental health issues.
Under the Canadian Environmental Protection Act, 1999, Government of Canada scientists assess chemicals to determine potential risks posed to human health and the environment, and the ways in which humans or the environment can be exposed to them. Based on these findings, appropriate regulations and other risk management tools may be put in place to reduce or prevent risks.
In 2006, the Government of Canada launched the Chemicals Management Plan (CMP) to further enhance its role in protecting Canadians and their environment from exposure to harmful chemicals. The Chemicals Management Plan uses a number of Acts (such as the Canadian Environmental Protection Act, 1999, the Hazardous Products Act, the Pest Control Products Act, etc.) to identify harmful chemicals and enable the Government to take early action on substances so that they are managed before they enter the environment and become a problem for future generations. The Chemicals Management Plan includes observations of sensitive species through an ecological monitoring program which will also serve as an "early warning" system for harmful substances in the ecosystem.
The Government of Canada works closely with provinces and municipalities to help reduce the risks of harmful chemicals. In addition, because pollution does not stop at borders, the Government of Canada works with other countries to build a consistent international and regional approach to the safe management of chemicals.
What can I do to help the environment?
There are many things you can do to help protect the environment. Carefully read all of the information on product labels and use chemicals only as directed. Informed consumers can often find safe alternatives for many harmful chemicals that are found in products they use, which are better for the environment. It is also important to be familiar with municipal waste and recycling programs so that you can properly dispose of products such as batteries and plastics. Other actions to protect the environment can include walking short distances instead of driving and ensuring your car is running at peak efficiency to reduce gasoline consumption.
Explanation:
What are chemicals?
Chemicals are the basic building blocks that make up all living and non-living things on Earth. Many chemicals occur naturally in the environment, and may be found in our air, water, food, and homes. Some chemicals are synthetic, and are used in every day products from medicines to computers to fabrics and fuels. Other chemicals are not made deliberately but are by-products of chemical processes.
Answer:
your skin opens up
Explanation:
the pores i your skin opens up and let the water (sweat) out to help cool down your body.
The mould and cast fossil is Option B.
The carbon film fossil is Option C.
The Amber fossil is Option A.
The ice fossil is Option D.
Mould and cast fossils are formed when an organism or any organic object gets buried inside sediment and gets decomposed off, leaving an empty space between the sediments which are occupied by different minerals like carbon, calcium, silica etc. Thus, this mineral takes the shape of that decomposed object and stays for years.
The carbon film fossils are those fossils which take long time to form and are difficult to recover as well. They are formed when some organic substance gets very deep into Earth's surface and gets burned by the interior lava into only a thin layer of carbon.
The amber fossils are very common which are formed when the living organisms get stuck in plant resins and dies, which are enclosed into the plant's resin and are recovered thousands of years after.
The ice fossils aren't actually fossil because in very cold regions, the dead bodies often don't decompose but remain as it is for years. Thus the soft tissues are also recoverable after many years.
Answer:
20 kmp
Explanation:
because if you divide 50 with 2.5 you get the speed per hour
(2) gold (4) zinc
C. Vinyl or neoprene gloves provide protection against hazardous chemicals due to their resistance to chemical exposure. Latex gloves can be permeable, and padded cloth gloves are not designed for chemical protection.
C. Vinyl or neoprene gloves are the appropriate choice for protecting hands from hazardous chemicals. Here's why:
1. Chemical Resistance: Vinyl and neoprene gloves offer excellent resistance to a wide range of chemicals, including acids, bases, solvents, and oils. This resistance creates a barrier that prevents hazardous chemicals from coming into contact with your skin.
2. Latex Allergies: Latex gloves (option A) can cause allergic reactions in some individuals, which can be severe. It's important to avoid latex gloves when working with hazardous chemicals to prevent potential allergic responses.
3. Physical Protection: Padded cloth gloves (option B) are typically designed for physical protection and comfort, not for chemical resistance. They may not provide an effective barrier against chemical exposure, making them unsuitable for this purpose.
4. Versatility: Vinyl and neoprene gloves are versatile and can be used in various laboratory, industrial, and healthcare settings where protection against chemical hazards is necessary.
5. Durability: These gloves are known for their durability and resistance to wear and tear, ensuring that they maintain their protective properties even during prolonged use.
It's essential to choose the right type of gloves based on the specific chemicals you are handling and their compatibility with the glove material. Always consult safety guidelines and material compatibility charts to select the most appropriate gloves for your specific chemical-handling tasks, ensuring the safety of your hands and skin.
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the correct answer would be A. Latex Gloves. vinyl or neoprene gloves will be eaten by most highly toxic chemicals and some lower toxicity chemicals and padded cloth gloves will just soak up the chemical.
hope this helps:)