Help

SOS

IM SUPER CONFUSED

Answer:

C. group 4 .................

Answer:

Trends on the Periodic Table have a vertical component and a horizontal component. Vertical trend: as more “shells” are added to the electron cloud, it expands. Horizontal trend: if atoms have the same number of “shells”, atoms with more protons will draw the electron cloud in tighter.

Explanation:

Hydrogen sometimes is missing an electron and sometimes it has an extra electron.

Helium (He) and hydrogen (H) are unique elements. Hydrogen has the abilities and electrons of two groups, one and seven, and occasionally has more electrons than it does.

Electrons are defined as a subatomic particle with a negative charge that makes up the nucleus of an atom along with protons and neutrons. For scientists, it can be challenging to monitor them because of how quickly they spin. The tiniest particles in an atom, you can put 2000 of them into a proton, they are drawn to the positive charge of the protons.

Because it has no neutrons in its nucleus, hydrogen (particularly hydrogen -1) is unusual. There is only one proton in the nucleus of hydrogen. The only element without neutrons is this one. Although it has a single electron orbiting its nucleus as well, hydrogen typically contributes this electron to form a single, positively charged proton instead.

Thus, Helium (He) and hydrogen (H) are unique elements. Hydrogen has the abilities and electrons of two groups, one and seven, and occasionally has more electrons than it does.

To learn more about electrons, refer to the link below:

https://brainly.com/question/1255220

#SPJ6

Answer:

A. Kinetic energy

Explanation:

Kinetic energy is stored in the bonds between atoms.

Answer:

23

Explanation:

we do not care about electrons, so 11 + 12 = 23

Answer:

There are two aluminum ions and three sulfate ions; or two aluminum, three sulfur, and twelve oxygen atoms.

Explanation:

In 5 molecules of Al₂( SO₄ ) there are 20 oxygen atoms are present. In  one molecule of aluminum sulphate there are 4 oxygen atoms present and in 5 molecules of  Al₂( SO₄ )  20 oxygen atoms present.

According to the environment, the word may or may not include ions that meet this requirement. A molecule is a collection of two or more atoms bound together by the attractive forces known as chemical bonds.

There are three different kinds of molecules: atom-sized molecules, element-sized molecules, and compound-sized molecules.

A molecule is the smallest unit of any material that is composed of one or more elements and is capable of existing independently while maintaining all the substance's physical and chemical characteristics. Further atom division occurs within molecules.

Thus, In 5 molecules of Al₂( SO₄ ) there are 20 oxygen atoms are present.

To learn more about the molecule, follow the link;

https://brainly.com/question/19556990

#SPJ2

Answer:

Hennig Brand

Explanation:

Answer:

D

Explanation:

Most of the fluids have some resistance to their movement due to viscosity. The gases also exhibit viscosity. The molecules that make up olive oil are larger as compared to alcohol. So olive oil has high viscosity. The correct option is D.

The viscosity of a fluid can be defined as the measure of a fluid's resistance to flow. It can also be known as the measure of a fluid's thickness or its resistance to the objects passing through it.

A fluid with high viscosity resists motion because of its strong intermolecular forces which gives high internal friction. The fluids can flow easily if they have very little intermolecular force of attraction. The SI unit of viscosity is poiseiulle (PI).

Here the molecules which make up the olive oil are found to be shorter than those which make up alcohol. So the oilve oil molecules have more resistance to sliding past one another.

Thus the correct option is D.

To know more about viscosity, visit;

https://brainly.com/question/30759211

#SPJ3

The question is incomplete, the complete question is;

Dr. Murray's science class recently read about an experiment that had surprising results. They decided to perform the experiment in their class, but they used more advanced methods. Their results

must be completely different, but they are more reliable.

could be the same as before, or they could be completely different.

must be the same as the recorded results, but they are more reliable.

could be the same as the recorded results, or they must be inconclusive.

Answer:

could be the same as before, or they could be completely different.

Explanation:

Now we know that in carrying out a scientific research, there is such a thing as replication.

Replication means that other scientists in other places carry out the same experiments previously done and expect to obtain the same results as the first time the experiment was done.

However, this is not a case of replication because a different and more advanced method was used in the experiment. Once the methodology of the experiment has been changed, then the results could be the same or different. Hence the answer above.

Answer:

To persuade at any means necessary. Ex. I bribed a man with money.

Answer:

the underlined word is "bribes" which means you try to temp the gaurds to take money and in return you get something back. for example, i bribe someone with money to bring me a zebra from africa because its illiegal but you get persuaded with money to do it

Explanation:

Answer:

C7H6O2+C8H17OH=C15H22O2+H2O

Explanation:

by reacting alcohol and acid we get ester and water

Answer:

weathering

Explanation:

the rocks due to rain generate cracks . heat and wind helps the rock to break into smaller chunks .

this process continuous till the rock is converted into sand. and is called weathering

Answer:

C

Explanation:

The statement which is true about non-metal elements is as follows:

Thus, the correct option for this question is C.

Non-metals may be defined as those chemical elements that significantly lack the attributes of metals. They generally range from colorless gases to shiny and high melting point solids. Some examples of non-metals include boron, carbon, nitrogen, etc.

Non-metals are not stronger than metals because the arrangement of bonds in metals is highly compacted. Non-metals are very frequently utilized in the manufacture of computers, laptops, and other electronic devices along with metals. But most of the time non-metals are cheaper to synthesize.

Therefore, non-metal elements are sometimes cheaper to make is a statement that is true about non-metal elements. Thus, the correct option for this question is C.

To learn more about Non-metals, refer to the link:

https://brainly.com/question/23938148

#SPJ2

Answer:

No observable change, unless dry hydrogen Chloride reacted in presence of a peroxide (ROOR)

Answer:

Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.

Explanation:

Answer:

The answer is 78

Explanation:

133 - 55 = 78

Answer:

75 Newton

Explanation:

In order to find the force of the object, you must remember that the equation N = (mass x acceleration). Therefore meaning you would divide 300 kilograms, the mass, by 4 meters per second (squared), the acceleration.

Answer:

d. skeletal and muscular

Explanation:

it helps to provide the energy which is necessary to hold two different atoms together as part of chemical compound.

Answer:

2.5

Explanation:

Answer:

oxygen and Hydrogen

Explanation:

Oxygen and Hydrogen causes rusting on metals after combining with moisture

Answer:

Because they are both of the same functional groups (alkane)

Answer:

c

Explanation:

I think that's the answer

Answer:

Product packaging design refers to the production of a product's exterior. Develop an organization. All these specifics allow one to consider what the sealed substance is about how to use it, who can use it, and maybe, What do you sell? For your product, there are several different packaging forms available.

Explanation: