Describe how chemistry is a part of your morning routine?

Answers

Answer 1

Answer:

Explanation:

There are many examples of chemistry in daily life showing how important chemistry is. For example digestion is based on chemical reaction. In our morning routine we brush our teeth by paste that is a chemical, the soap or shampoo we use is also a chemical. The process of making food is also chemistry that involve chemical reaction.

Answer 2

Answer: brushing your teeth uses a chemical to dissolve bacteria, the milk you drink or eat with your cereal is treated with a series of chemical reactions in order for it to sit in tour frindge

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Which property is true for metals

Answers

The true property of metals is metals have low ionization energies.

(Option 3).

What are the characteristics of metals?

Metals are characterized by their ability to conduct electricity and heat, malleability, and ductility.

These properties are primarily due to the behavior of their electrons. In a metal, the valence electrons are not tightly held by the individual atoms but rather form a "sea" of delocalized electrons that can move freely throughout the metallic lattice.

One of the key factors that contribute to the delocalization of electrons in metals is their low ionization energies.

Ionization energy is the amount of energy required to remove an electron from an atom, specifically from the outermost shell.

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The complete question is below:

Which property is true for metals?

1. localized electrons

2. high electronegativity

3. low ionization energies

4. tightly held valence electrons

metals are solid, shiny, and good conductors of electricity and heat
hope this helps :)

How many valence electrons are in an atom of phosphorus?a. 2
c. 4
b. 3
d. 5 Please select the best answer from the choices provided A B C D

Answers

How many valence electrons are in an atom of phosphorus?

a. 2
c. 4
b. 3
d. 5 Please select the best answer from the choices provided A B C D

There are five valence electrons are in an atom of phosphorus. The answer is letter D.

A scientist heats a flexible container full of neon gas. What will most likely happen to the container as the gas absorbs heat?It will shrink, because the neon atoms will break apart into smaller pieces.

It will expand, because the neon atoms will get larger.

It will expand, because the neon atoms will move more quickly and get farther apart.

It will shrink, because the neon atoms will lose energy as heat, and move closer together.

Answers

As you heat gas up, the molecules move more rapidly. This pushes harder on the outside of the container, forcing it to expand. Atoms do not change in size.
So, the answer to the second question is C. It will expand because the neon atoms will move more quickly and get farther apart.

Answer: It will expand, because the neon atoms will move more quickly and get farther apart.

Explanation: This can be explained based on Charle's law.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

$V\propto T$ (At constant pressure and number of moles)

Thus if a gas absorbs heat at constant pressure and no of moles, the temperature of the gas increases and thus the volume also increases and thus it expands by gaining kinetic energy and moving far apart.

Of the choices below, which is true for the relationship shown? a. It is Ka for the acid H3P2O72−. b. It is Kb for the acid H3P2O72−. c. It is Ka for the acid H2P2O72−. d. It is Kb for the acid H2P2O7

Answers

The expression for the Ka for the given acid is:

Ka = [H2P2O7^2-] [H3O+] /[H3P2O7^2-]

Ka is the acid dissociation constant or the acidity constant. It is a measure of the acid strength when in solution. It is an equilibrium constant for the dissociation of the acid.

Answer:

It is Ka for the acid H3P2O72−.

Explanation:

Chlorine and element X have similar chemical properties. An atom of element X could have an electron configuration of(1) 2-2 (2) 2-8-1 (3) 2-8-8 (4) 2-8-18-7

Answers

An atom of element X will have an electron configuration of 2-8-18-7. Therefore, option (4) is correct.

What kinds of elements have similar chemical properties?

Those chemical elements present in the same group of the periodic table have similar chemical properties. Elements are placed in vertical columns that have the same number of electrons in their valence shell and identical chemical properties.

On the periodic table, the vertical columns are known as groups because of their identical chemical behavior. All the chemical elements of a group (1 to 18) have similar chemical properties.

The atomic number of chlorine is 17 and the distribution of electrons in its shells is 2, 8, 7. So, chlorine exhibits seven electrons in its outermost shell. Therefore, the atom which will carry seven electrons in its outermost shell will have identical chemical properties as that of chlorine.

Hence, out of the four options, the atom with electronic configuration 2-8-18-7 will have similar chemical properties as those of chlorine.

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Answer: Option (4) is the correct answer.

Explanation:

Chemical properties depend on the number of electrons present in the valence shell.

Atomic number of chlorine is 17 and electrons present in its shells are distributed as 2, 8, 7. So, there are 7 electrons present in the outermost shell.

Therefore, the atom which will also have 7 electrons present in its outermost shell or valence shell will have similar chemical properties as that of chlorine.

Hence, out of the given options atom with electronic configuration 2-8-18-7 will have similar chemical properties.

What is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl?

Answers

3.72/30.97=0.120/0.120=1
21.28/35.45=0.600/0.120=5

PCl5

Answer:

PCI5

Explanation:

Other Questions

The element carbon is present in all organic compounds. Which reason would explain why there are so many different types of organic compounds? A) Carbon is a nonmetal. B) Carbon has an atomic number of six. C) Carbon can form four covalent bonds. D) Carbon has a total of six electrons.

All the elements of a family in the periodic table have what feature in common? A) They all have similar chemical properties. B) They all have the same number of protons in the nucleus. C) They are all located in the same horizontal row or period. Eliminate D) They all have the same number of electrons in the electron cloud.

The age of the solar system is estimated by the dating of rocks?

The bacteria that causes a disease is called a(n)A. PathogenB. PandemicC. EpidemiologyD. Toxicology