Which is TRUE of the reactants in this displacement reaction? Fe + 2HCI --> FeCI2 + H2 A. The reactants are located to the left of the arrow in the chemical equation.

B. The reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom.

C. The reactants are the atoms, molecules, or compounds formed in the reaction.

D. The reactants have the same physical and chemical properties as the products.

Answers

Answer 1

I would go with C, because you would always start with products and end with reactants.

Answer 2

I tried c I'm sorry but its wrong.

Related Questions

In a particular breed of cattle a black coat is dominant over a red coat if a cow with the red coat is crossed with the black ball that is heterozygous for a cut color what percentage of their offspring would you expect to be black?? A.25%
B.50%
C.75%
Or D.100%

Answers

It's D because a dominant Gene will take over a recessive

Which element is composed of molecule that each contain a multiple covalent bond? A.chlorine
B.fluorine
C.hydrogen
D.nitrogen

Answers

Nitrogen is the answer

Which compound contains both ionic and covalent bonds A. KI
B. CaCl2
C. CH2Br2
D.NaCN

Answers

Answer : The correct option is, (D) NaCN

Explanation :

Ionic compound : Ionic compound are the compounds in which atoms are bonded through ionic bond.

Ionic bonds are formed by the complete transfer of electrons. The atom which looses the electron is considered as electropositive atom and the atom which gains the electron is known as electronegative atom. These bonds are formed between one metal and one non-metal.

Covalent compound : Covalent compound are the compounds in which atoms are covalently bonded.

Covalent bonds are formed by the equal sharing of electrons. These bonds are commonly formed between two non-metals.

As per given options, and are the ionic compounds in which 'K' and 'Ca' are the metals and 'I' and 'Cl' are the non-metals that are bonded through the ionic bond.

The option is a covalent compound in which the carbon, hydrogen and bromine atoms are non-metal that are bonded through the covalent bond.

While the option, is the compound that contains both ionic and covalent bonds. In NaCN compound, ion and ion combines to form an ionic bond and in ion, carbon and nitrogen combine to form a covalent bond.

Hence, the correct option is, (D) NaCN

D.NaCN contains both ionic and covalent bonds

Further explanation

Elements based on electrical conductivity can be divided into two elements, namely metal elements (conductors) and non-metals (non-conductors / insulators)

In modern periodic systems, the metal element is generally located on the left while the non-metal is on the right.

The formation of electron configurations such as noble gases can be done by sharing electrons with covalent bonds or hand over electrons with ionic bonds

1. ionic bonding

Bonding that occurs due to electron handover. Can occur in metal and non-metal atoms. To get stability, atoms release or bind electrons to get stable electron regulation from noble gases

2. covalent bonding

Bonding that occurs due to shared use of electron pairs

The two bound atoms contribute their electrons to produce bonds

Generally occurs in non-metallic elements

The small difference in electronegativity between two nonmetal elements results in a non-polar covalent bond. Whereas the greater electronegativity difference makes the compound ionic

So if the electronegativity difference between the atoms is greater than 1.7, the compounds formed are ionic.

A. KI

An ionic bond occurs between metal K⁺ (group 1A) and non-metal I⁻ (group 7A)

B. CaCl₂

An ionic bond occurs between the Ca²⁺ metal (group 2A) and the non-metal Cl⁻ (group 7A)

C. CH₂Br₂

A covalent bond occurs between C, H and Br (all non-metal)

D.NaCN

An ionic bond occurs between the Na + metal (group 1A) and CN- (cyanide) and the CN covalent bond between nonmetal C (class 4A) and nonmetal N (VA group)

Learn more

ionic bonding

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type of chemical bond

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Lewis structures

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You discover a bottle of aqueous sodium chloride of unknown molarity. However, the bottle says that there are 0.75 moles of NaCl dissolved and the total volume of the solution is 500.0 ml. What is the molarity of this solution? Note which type of calculation you need to perform, and then perform the calculation.

Answers

To calculate the molarity you only need to know the number of moles in the solution and the volume of that solution. This exercise gives both and with that you divide moles by volume(usually in liters).

500 ml equals 0,5 L
molarity= number of moles/ volume
molarity=0,75 x 0,5
= 0,375 mol/L

Answer:

Necessary calculation: a

0.75 moles/0.500 L = 1.5 M

Explanation:

plato

Suzy's science class is studying changes in particle motion during phase changes. Suzy is asked to add a few pieces of dry ice to a flask and cover it with a balloon. After a few minutes she observed the balloon starting to inflate. How can she explain this?

Answers

Answer: This happens because dry ice sublimates.

Explanation:

Dry ice is the solid phase of carbon dioxide and it is a sublimating substance.

Sublimating substance is a substance which undergoes the process of sublimation.

Sublimation is defined as the physical process in which a substance directly changes its state from solid state to gas state.

Dry ice directly changes its state from solid (dry ice) to Gas [tex(CO_2)[/tex]. As, carbon dioxide releases, it inflates the balloon.

Hence, dry ice sublimates into carbon dioxide gas and thus inflating the balloon.

The dry ice is so cold it turns directly into carbon dioxide gas rather than a liquid so the balloon starts to get blown up

What comes before winter in the southern hemisphere

Answers

I believe it's Autumn. :)

The seasons in the southern hemisphere are summer, fall(autumn), winter, and spring.

So the season before winter is fall(autumn)

Which of the following best explains the polarity of water (H2O)? A.

Protons are more attracted to the hydrogen atoms, so the hydrogen atoms become positively charged.

B.

Since the oxygen atom has more electrons than the hydrogen atoms, it is negatively charged.

C.

Electrons are more attracted to the oxygen atom, so there is a partial negative charge on the oxygen atom.

D.

Since there are two positive hydrogen atoms and only one negative oxygen atom, the water molecule is positively charged.

Answers

Answer: Option (C) is the correct answer.

Explanation:

The chemical formula of water is . This shows that there are two hydrogen atoms and one oxygen atom.

As oxygen is being more electronegative in nature as compared to hydrogen atom. So, oxygen atom will tend to attract the electrons more towards itself.

As a result, a partial negative charge will develop on oxygen atom and a partial positive charge will develop on hydrogen atom.

This development of charges will make a molecule of water polar in nature.

Thus, we can conclude that the statement electrons are more attracted to the oxygen atom, so there is a partial negative charge on the oxygen atom, best explains the polarity of water.

I would say letter C.
"the oxygen atom attracts electrons a bit more strongly than the hydrogen atoms. The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms." (middleschoolchemistry.com)

Vertebrates that live in both land and the water, are exothermic, and have permeable skin to intake oxygen are called Question A Amphibians Question B Fish Question C Mollusks Question D Cnidarians

Answers

The answer is amphibians

WILL MARK BRAINLIEST!! Which of the following is the best definition of a diatomic molecule?
A. Molecule made from the covalent bond of 2 atoms of the same type
B. Ionic compounds with a net charge of 2
C. Cation with 2 positive charges
D. Compound made of 2 different elements

Answers

A. Molecules made from the covalent bond if 2 atoms of the same type. For example Hydrogen gas always comes in H2.

WILL MARK AS BRAINLIEST!!! HELP!! Consider the compound CaCl2. What type of compound does it represent?
A. Organic
B. Covalent
C. Ionic
D. Diatomic

Answers

This type of compound represents ionic because there is a metal and a non-metal elements

Ionic: only because there are metal and non metal

Which of the following is a renewable resource: copper, aluminum, peanut oil, natural gas?

Answers

Natural gas. It can be any gas, oxygen included

Natural gas. It can be any gas, oxygen includedIs your answer I think:D

What is the difference between an atom and a compound?

Answers

An atom cannot be broken down any smaller whereas a compound is made up of atoms and can be broken down into smaller pieces (the individual atoms that make it up)
Hope this helps!

A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compound. The smallest bit of each of these substances would be referred to as a molecule.

WILL MARK BRAINLIEST!!

List the names and numbers of an atom in ammonia, NH3 ______

Answers

In NH3 there is...
One nitrogen atom
Three hydrogen atoms
Hope this helps!

Nitrogen: 1
Hydrogen: 3

Lee dissolved 8 grams of a salt in a certain amount of water to obtain 608 grams of salt solution. What was the mass of the water used to make the solution?

Answers

Answer: 600 g of the water was used to make the salt solution.

Explanation:

In a salt solution ,salt is present as a solute and water as a solvent.

Mass of salt present in the solution = 8 g

Mass of the salt solution = 608 g

Solution = Solvent + Solute

608 g = solvent + 8 g

Mass of water = 608 g - 8 g= 600 g

600 g of the water was used to make the salt solution.

600 Grams
I'm Pretty sure at least

Which of the following statements is true? A.To be classified as living, an organism must be made of two or more cells.
B.During mitosis, a parent cells splits into two identical daughter cells.
C.Sexual reproduction results in only one identical daughter cell.
D.The growth of an organism is usually unpredictable and random.

Answers

B is the correct answer, mitosis creates and splits into two identical daughter cells

Answer:

B. During mitosis, a parent cells splits into two identical daughter cells.

Which of the following most completely describes an object's motion? A car travels 25 miles.

The rain falls at a rate of one inch per hour.

A marble rolls 10 m to the left.

The baby crawls 10 feet in 15 seconds toward the door.

Answers

The statement which completely describes the motion of an object is option D baby crawls 10 feet in 15 seconds towards the door.

What is motion?

Motion is the state of an object where it undergoes a displacement from its initial position with a velocity and with help of some force or energy.

The displacement of the object is described with some physical quantities namely distance, speed, time and direction of movement. The distance it moved is represented in meter, kilometer , miles etc.

Speed of the motion is the measure of the distance covered by an object in unit time. Thus it is the ratio of distance to the time. Speed is indicated in m/s or Km/h.

Here, the statement which describes a motion with distance, time and direction and from which the speed can also be calculated is the crowl of the baby. Hence, option D is correct.

To find more on motion, refer here:

brainly.com/question/22810476

#SPJ2

Hello!

This is a difficultly easy question, mostly because it seems like all of the answers would be right, but if I had to choose one, I would say (D) because this option gives the most detail.

Option A only tells us how fast a car was moving
Option B only tells us the rate the water falls and how fast it is going
Option C only tells how far and not the speed or destination
Option D is correct, it tells us the speed/rate, the destination, and what is moving

Therefore, Option (D) is correct

If this helps, please mark brainliest, have a great day!!

What is different about the secondary, tertiary, and quaternary structure of each protein?

Answers

Primary structure is the order in which what amino acid bound the other with a peptide bond. This is coded for by the order of codons in a gene

secondary structure is how the chains on amino acids interact with each other to form beta barrels and alpha helixes. This structure is determined by hydrogen bonds between the different amino acids

Tertiary structure is when the secondary structures interact with each other through disulphide bonds, hydrogen bonds hydrophobic/ hydrophilic interactions etc. This is all determined by the placement of certain anino acids within the proteins secondary structure

hope this helped you!!!!

PLEASEEE HELP MEEEEE!!A non-native organism that is released into a new ecosystem, such as Kudzu in the southeastern United States is called a A) pioneer species.
B) threatened species.
C) endangered species.
D) non-indigenous species.

Answers

Your answer is D) non-indigenous species

As you move from what to what on the periodic table, the atomic radius of the atoms increase

Answers

As you move down vertically the radius increases, and as you move right to left the radius increases. However, since the table is split in three parts (metals, transition, and non-metals), it is more complicated when referring to size going right to left. The metals tend to be bigger and as you move right they become smaller, but when you get to the non-metals they increase in size again and then become smaller. But in general, as you move right and down they become smaller.

Match each word to it's correct meaning. 1. chain reaction 2. critical mass 3. fission 4. fusion

A spontaneous or induced reaction that continues to feed itself and keep itself going.

Nuclear reaction producing lighter elements and energy by splitting.

Mass of a nuclear substance that, if combined into one piece, would result in a spontaneous nuclear reaction.
Nuclear reaction producing heavier elements and energy by synthesis.

Answers

1 is The first one
2 is the third one
3 is the second one
4 is the 4th one

Answer:

Fission: 1

Chain Reaction: 3

Fusion: 2

Critical Mass: 4

Explanation:

I hope this helps! Good Luck! Please give me the brainliest!

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