Answer:
The valency of B will be 5
Baking soda contains one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms
Explanation:
Hope it will help you:)
Answer:The valency of B will be 5
Baking soda contains one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms
Explanation:
In July, the average temperature in one US city was 29°C. By December, the average temperature had fallen by 29°C. Explain why the average temperature in December was 0°C.
Which statement is NOT true regarding natural vs. synthetic materials?
A) An example of a natural material is sand.
B) An example of a synthetic material is nylon.
C) Synthetic materials are made from natural resources.
D) Synthetic materials only have a negative impact on society.
Answer:
Option C
Explanation:
Answer:
Option C
Explanation:
what is an interesting fact about the first 10 atoms in the periodic table??? Please answer..
Answer:
Although Dmitri Mendeleev is most often cited as the inventor of the modern periodic table, his table was just the first to gain scientific credibility. It wasn't the first table that organized the elements according to periodic properties.
There are about 94 elements on the periodic table that occur in nature. All of the other elements are strictly human-made. Some sources state more elements occur naturally because heavy elements may transition between elements as they undergo radioactive decay.
Technetium was the first element to be made artificially. It is the lightest element that has only radioactive isotopes (none are stable).
The International Union of Pure Applied Chemistry, IUPAC, revises the periodic table as new data becomes available. At the time of this writing, the most recent version of the periodic table was approved in December 2018.
The rows of the periodic table are called periods. An element's period number is the highest unexcited energy level for an electron of that element.
Columns of elements help to distinguish groups in the periodic table. Elements within a group share several common properties and often have the same outer electron arrangement.
Most of the elements on the periodic table are metals. The alkali metals, alkaline earths, basic metals, transition metals, lanthanides, and actinides all are groups of metals.
The present periodic table has room for 118 elements. Elements aren't discovered or created in order of atomic number. Scientists are working on creating and verifying elements 119 and 120, which will change the appearance of the table, though they were working on element 120 before element 119. Most likely, element 119 will be positioned directly below francium and element 120 directly below radium. Chemists may create much heavier elements that may be more stable because of the special properties of certain combinations of proton and neutron numbers.
Although you might expect atoms of an element to get larger as their atomic number increases, this does not always occur because the size of an atom is determined by the diameter of its electron shell. In fact, element atoms usually decrease in size as you move from left to right across a row.
The main difference between the modern periodic table and Mendeleev's periodic table is that Mendeleev's table arranged the elements in order of increasing atomic weight, while the modern table orders the elements by increasing atomic number. For the most part, the order of the elements is the same between both tables, though there are exceptions.
please answer this questions!!!
Which is an example of how the body maintains homeostasis? by increasing thirst when cells are low on water by decreasing thirst when cells are low on water by shivering when it is hot by sweating when it is cold
Answer:
increasing thirst when cells need water
Explanation:
hope this helps
Answer:
By increasing thirst when cells are low on water
Explanation:
Because your body needs more water so homeostasis kicks in to balance.
Lewis is running in a race. His muscles need oxygen. Which best describes how multiple systems interact to bring him into homeostasis? The circulatory stem brings oxygen to the respiratory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system. The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
the respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system
How do Solids, Liquids and Gasses differ?
Answer:
A solid is the hardest state of matter and require a liquid to freeze and is firm and stable in shape. A liquid is a a substance that flows freely but is of constant volume and can form when gas is cooled down. A gas is a state of matter that has no fixed shape and no fixed volume.
Explanation:
Answer:
The first person is right.
1. Freedom of motion of their particles
2. How strongly particles attract each other
solid-----Constant shape and constant volume
liquid-----variable shape, constant volume
gas--------variable shape, variable volume
Fill in the blanks with the word that best completes each statement. Scientists develop knowledge by making ------------about the natural world that may lead to a scientific question. A scientific question may lead to a(n) -------------which can be tested. The results of ------------can lead to changes in scientific knowledge.
Answer:
1. observations
2. hypothesis
3. experimentation
Explanation:
Observations are made, Hypothesies are formed from observations, and experimnets help alter and comfirm hypothesis.
Answerobservations
2. hypothesis
3. experimentation
Explanation:
Observations are made, Hypothesies are formed from observations, and experimnets help alter and comfirm hypothesis.
:
Explanation:
To know the ratio of different atoms present within the compound where we have to look at
Answer:
You can look that atoms in a form of liquid as you can't see the atoms
Explanation:
You will have to open that books where the ratio is written.And secondly you will go to the chemical store and buy which atoms which you want to look then you can see it