All categories

1 year ago

Assuming the substance is one of those listed in the table presented in this lesson, what is the identity of the substance?

Chemistry

2 answers:

zepelin [54]1 year ago

8 0

The identity of the substance is Iron.

<h3>Properties of Iron</h3><h3>Chemical properties</h3>

The element iron has the atomic number 26 and the symbol Fe
Electronic configuration of Fe is [AR] 3d6 4s2
The atomic weight of Iron is 55.847
The element iron belong to the group VIII of the periodic table

It is the fourth most prevalent element in the crust of the world
It is a highly reactive element as it gets rusted readily in the moisture of air

<h3>Physical properties</h3>

It is a heavy metal in the first transition series
The color of iron is silvery grey
High malleability and ductility
It has a strong electrical conductivity.

Learn more about periodic table on

brainly.com/question/2140373

#SPJ1

hodyreva [135]1 year ago

8 0

Answer: Iron

Explanation: IRON : Iron is an element with symbol Fe and atomic number 26 2) it is the fourth most common element in earth's crust 3) It is a heavy silvery grey metal belongs to the first transition series. 4) High ductility and malleability 5) It is a good conductor.

You might be interested in

Assuming that both cases describe hydrogen‑like atoms with one electron, for which case is more energy emitted or absorbed?

Nana76 [90]

Assuming that both cases describe hydrogen‑like atoms with one electron, More energy is emitted or absorbed for case 2. The correct option is D.

<h3>What is emitting of energy, by electron?</h3>

The energy of the electron decreases as it changes levels, and emission of photons happens in the atom.

With the electron moving from a higher to a lower energy level, the photon is emitted. The photon's energy is the same as the energy lost by an electron moving to a lower energy level.

Thus, the correct option is D, More energy is emitted or absorbed for case 2.

Learn more about emitting of energy

brainly.com/question/14350185

#SPJ4

5 0

1 year ago

How many electrons are there in carbonate ion, CO3^-2?

NISA [10]

It should be 24 electrons

3 0

2 years ago

DirectionsAnswer each question in the spaceQuestion1. Why does a neutral atom haveno overall charge?2. What determines the charg

mart [117]

1. An atom has an equel number of protons and electrons. Since protons are positive and electrons are negative, they are balanced out and there is no charge.

7 0

2 years ago

What would happen to the sup- ply of ATP in your cells if you did not eat enough carbohydrates? How would this affect your cells

harina [27]

Answer:

ATP supply will reduced or decrease drastically

Explanation:

ATP will reduced because carbohydrates are energy given food. Chemical energy are in carbohydrates, therefore when the undergo digestion i.e breakdown of larger pieces into smaller pieces, it is broken down into glucose i.e energy is released. Therefore, if there is now carbohydrates, ATP supply will reduced and there won't be energy needed for different cellular metabolic activities. The breakdown of carbohydrate supply energy.

3 0

2 years ago

How does the composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and o

IrinaK [193]

Chemical compounds have chemically bonded molecules so that they exhibit different properties (i.e. chemical) compared to the individual molecules comprising the compound. Mixtures are simply the combinations of different molecules and compounds that are not chemically bonded together, and can therefore be separated by physical means. Mixtures usually retain the properties of its components.

The hydrogen and oxygen molecules in a mixture do not form strong bonds between each other. The molecules of both gases are only contained in the same space or volume and the individual molecules retain their chemical properties.

A compound containing hydrogen and oxygen molecules exhibit different chemical (and even physical) properties compared to the individual molecules themselves.

Water for example, is a compound with 2 hydrogen atoms and 1 oxygen atom, chemically-bonded together. Hydrogen gas is highly flammable, water is not. Oxygen gas is an essential reagent for combustion (or burning) reactions, water is not.

Thus, throwing a lighted match to a gaseous mixture of hydrogen $(H_{2})$ and oxygen $(O_{2})$ would create fire, or even an explosion (since hydrogen is flammable and oxygen feeds the reaction). Throwing a match to water vapor $(H_{2}O)$ would not create fire.

5 0

3 years ago