How many moles of water are there in 45 g of water?
a) 1.0 moles
b) 1.5 moles
c) 2.0 moles
d) 2.5 moles

Answers

Answer 1

Answer:

d

Explanation:

can you help me with my question In the extended simile of the underlined passage from Paragraph 15 of "A Wagner Matinee," the narrator makes an observation about the soul that aring rokol been A. it is like a strange moss on a dusty shelf that, with excruciating suffering, can wither and die y for I the be B though after excruciating suffering it may seem to wither, the soul never dies, C. excruciating, interminable suffering that goes on for half a century can kill the soul.

Answer 2
D because the molar mass of H2O is 18.02 g/mol. You do this by adding the AMU of each element. 45/18.02 = approx. 2.5 moles.

Related Questions

In an ecosystem, which of the fcHlowing is NOT a trait of living organisms?

Contains DNA

Can reproduce

Made of cells with membrane

Responds to stimuli

Answers

Answer:

responds to a stimuli or made of cells with membrane

Explanation

Can skin help animals see?

Answers

To be honest No not at all

Answer:

Explanation:

Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other animal coverings, such as the arthropod exoskeleton, have different developmental origin, structure and chemical composition.

What is the chemical reaction taking place?

Answers

Answer: Synthesis (of phosphorous and oxygen to form tetraphosphorous decaoxide)

Explanation:

I could swear all of these are nobles gases but here’s the question.

Which one of these is NOT a Noble Gas
A) Argon
B) Helium
C) Xenon
D) Neon

Answers

The answer is B because helium is In a group of zero the list neon (Ne) , argon (Ar) , xenon (xe) all have noble gasses based on there number name on the periodic table
B) Helium is not a noble gas because it doesn’t have 8 valence electrons like Argon, Xenon and Neon.

What is the formula for silicon tetrabromide?

Answers

Answer:

SiBr4

Explanation:

Answer:

SiBr4

hope this helps!

Which is an energy source for a coyote?

Answers

Answer:

The coyotes are both a plant and meat eaters whose common food is 90% of their diet, is small animals. Rabbits, hares, birds, snakes, fish, crustaceans, and insects are all on the menu.

hopefully this is right :))

Answer:

sun

Explanation:

Help I will give brainlest

Answers

Answer:

grasslands ia the answer!

enzyme, fat, sugar. Classify them into the group of organic compounds to which they belong to

Answers

Answer:

Enzyme: speed up chemical reactions

- protein

Fat: give us energy

- lipid

Sugar: give us energy

- carbohydrate

GIVE BRAINLEST PLEASE

If 0.525 moles of O2 are produced, how many moles of KClO3 are decomposed?

Answers

Answer:

B. 0.35mol KClO3

Explanation:

The balanced equation in this question is given as follows:

2KClO3 → 2KCl + 3O2

Based on the chemical reaction;

2 moles of KClO3 decomposes into 3 moles of O2

If 0.525 moles of O2 are produced, then:

= 0.525 × 2/3

= 1.05/3

= 0.35mol of KClO3 is decomposed.

How many grams of carbon dioxide would 6.0E25 molecules be?

Answers

Answer:

4383.28 g

Explanation:

First we'll need to convert molecules into moles, we can do so using Avogadro's number:

6.0x10²⁵ molecules ÷ 6.023x10²³ molecules/mol = 99.62 moles

Then we will convert 99.62 moles of carbon dioxide (CO₂) into grams, using its molar mass:

99.62 moles CO₂ * 44 g/mol = 4383.28 g

how do i get my skin perfect without expensive products? I'm asking bc my face and neck have been massively breaking out with pimples and sweat bumbs. i can go out in public its so bad plsss help

Answers

Answer:

if you are a teen then its pretty normal as during the age of adolescent sweat gland become active and pimples take place on you face , no need to worry at this your face will become beautiful again .

but if you are above 25 then it is a time to worry , you should consult a doctor or you can use alovera jel or any other home remedies. :)

HELLP PLEASE
_ Na+Cl 2 -> _NaCl
reactant side number of atoms?
Na = ?
Cl = ?
Product side number of atoms?
Na = ?
Cl = ?
what is the final equation?
_ Na+Cl 2 -> _NaCl

Answers

Answer:

2Na+Cl2 -> 2NaCl

Explanation:

1Na+1Cl 2 -> 1NaCl (i'm assuming they want you to balance it so ill start with 1)

Na = 1

Cl = 2 (it is 2 because it is Cl2, meaning that there are 2; but remember that you cannot change this number only coefficients)

Na = 1

Cl = 1

We need to have 2 Cl on the product side

1Na+1Cl 2 -> 2NaCl

Now we need 2 Na on the reactants side

The final equation is

2Na+Cl2 -> 2NaCl

Now it is balanced

Na = 2

Cl = 2

--

Na = 2

Cl = 2

Determine the number of molecules present in 1.53 mol of carbon monoxide

Answers

Answer:

hi

Explanation:

this is my first time on this app so what do i do

What is the name of this nuclear process ?

Answers

Answer:

Fission

Explanation:

Reproductions is the process by which organisms CANNOT make one or more organisms

True
False

Answers

false, reproduction is the process by which organisms are able to make one or more organisms

Which term describes living things? abiotic biotic​

Answers

Answer:

biotic

Explanation:

What is the molecular geometry of BCl3
a. otriginal planar
b. trigonal pyraminad
c. tetrahedral
d. liner

Answers

BCl3 has a trigonal planar molecular geometry.

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help :) ..

Answers

Answer:

Explanation:the best guess I will go with is H but I might be wrong

Equilibrium constant Kp for the reaction P4(s) + 6Cl2(g) 4PCl3(l) Kp = 1/ P6Cl2 Kp = P4Cl3/ P6P4 Kp = P4Cl3/ (P6P4) (P6Cl2) Kp = 1/ (P6P4) (P6Cl2)

Answers

Answer: [tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressuure of reactants each raised to the power their stoichiometric ratios. It is expressed as [tex]K_p[/tex]  

For the given chemical reaction:

[tex]P_4(s)+6Cl_2(g)\rightarrow 4PCl_3(l)[/tex]

The expression for [tex]K_p[/tex] in terms of gaseous is written as:

[tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]

Which of the following is not an example for electroplating? A Tin cans for storing food
B Chromium used on bath taps to get shiny appearance
C Copper used for making electrical wires
D To protect iron objects used in machineries, from corrosion
If you answer you will get brainiest
Please answer and thank

Answers

Answer:

C. Copper used for making electrical wires

Explanation:

When a coating of a particular metal is applied on another metal, the process is termed as electroplating. The process is carried by the process of electro-deposition. This process is carried on in order to enhance the quality of the objects manufactured. The coating helps in resistance and provides an attractive appearance to the object.  

Option C. is not an example of electrocoating because on the copper wires no other metal coating is done. In all the other three options, coating has been done on the object.

What does the poitof incidence mean?​

Answers

Answer:

Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.

Explanation:

Search

true or false, when something heats up, new energy is created, and when something cools down, energy is destroyed.​

Answers

FALSE energy cannot be destroyed or created

I need help ASAP please
I will give thanks with Brainlist for correct answer

True or false
(Question on the pic)

Answers

Plastic rod and cloth

Answer:

yes true

Explanation:

based off my common sense as if you were to rub your hands together to warm up, it creates friction creating heat

Buoyancy, density, ductility and solubility describe the ________ of matter​

Answers

Answer:

the answer is physical properties

I am wondering how to find out the blood type of my grandson...my daughter is A+..father is in question...she is stressed to the max on the father of this baby boy.

Answers

Answer:

A person can identify their blood type at home using a rapid blood typing kit. Using the kit requires a person to pierce a finger with a needle. The kit comes with a card that contains chemicals known as reagents. These test for the presence of the antibodies and Rh factor.

Explanation:

Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.

a car motor running as a car travels down the road.
Kinetic Energy
Potential Energy

Answers

Answer:

kinetic energy

Explanation:

force is used

Which change in pH represents a hundredfold increase in the concentration of hydronium ions

in a solution?

(1) pH 1 to 2

(2) pH 1 to 3

(3) pH 2 to 1

(4) pH 3 to 1

Answers

Answer:(4) pH 3 to 1

Explanation:

im 95% sure its the right answer

PLSSS HELP I AM STUCK ON THIS PROBLEM!!!

Answers

Answer:

i can't read it.. maybe upload a visible picture?

Where could you find hydrocarbon chains?

Answers

Answer: Most Hydrocarbon chains are found in petroleum, coal, and natural gas. First of all, a hydrocarbon chain is a molecule that consist of entirely hydrogen and carbon.

Explanation: There are many types of hydrocarbon chains, which can be found in alkanes, alkynes, arenes, alkenes, and cycloalkanes. Natural rubber for instance is a hydrocarbon that primarily consists of alternating single and double bonded carbons.

If the moon is full on January 16, on approximately what date will it be full in February?
A. February 10
B. February 22
C. February 1
D. February 12​

Answers

Answer:

February 12th.

Explanation:

Trust me.

the correct answer is c
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