Calculate the number of grams of sulfur in 4.52 mol of sulfur.

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Answer 1
The answer is 1.27 grams. 4.52 mol = 1.27 g

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Answer:

hhhhdhabbjdksdalitkslhbdlqhbdndnvlirladiksha pokgjwnfkfdiksha pokhrel shhddhhgkd

Please help! Is hot tea with lemon juice a heterogeneous, homogeneous, or pure substance? Will award brainliest!

Answers

Answer:

Homogeneous

Explanation:

Pure substances are untouched substances.

Homogeneous mixtures are in uniform.

Heterogeneous mixtures are un-uniform.

Freezing and thawing water can cause a rock to break down into smaller pieces. Which part of the rock cycle is this an example of?

melting
weathering
subsidence
deposition

Answers

Answer:

Deposition

Explanation:

It’s breaking down the rock :]

Answer:

deposition

Explanation:

Ap3x

What temperature does neon condensate?

Answers

Answer and Explanation:

I believe −246.048 C or −411 F

I feel sad when all the flowers

Answers

Answer:

find happy things to think about, stay strong xx

Answer:    sorry u feel sad. y u feel sad?

Explanation:

We can talk if u want..

Which of the following could be an empirical formula? a C6H12O6 b H2O2 c CH2O d C6H6

Answers

Answer:

A C6H12O6 will be the empirical formulae.

I dont know i just want help thats why im answering to get 1 help as i have to help to get help

word equation for Na2O+H2O → NaOH

Answers

Answer:

Sodium oxide + Water - - - > Sodium Hydroxide.

How many moles of I2 are in 8.23 moles of NaI ?

Answers

Answer: 4.12

Explanation:

we know that the given mol is 8.23 mol and they are 2NaI and I2 so we will write the equation like this.

8.23mol NaI x 1mol of I2 ÷ 2molNaI = 4.115≅ 4.12 mol of I2

we placed NaI at the bottom to cancel out with the 8.23 mol of NaI

Show work please ?...........

Answers

Answer:

NO

Explanation:

NO NO NO

i am way to much of an idiot for this (hope i made you laugh (and mad cuz i did not answer) :3)

How many total atoms in 5 mg(NO3)2

Answers

Answer:

5 Mg (magnesium), 2 N (nitrogen), and 6 O (oxygen) -- total of 13 atoms

There are 45 as 1 mg(NO3)2 = 9 atoms.

Please help pretty please

Answers

Answer: Its is a field generated by any two objects touching each other.

                                                         OR

Answer: Its is a field generated by any object with any mass.

Explanation: I AM SOOOO SORRY if i get it wrong i pretty sure the first one is right i mean like My first ansewr i typed in......... :/ :/

The answer is B it has to be !

A 1500 N force gives an object an acceleration of 3 m/s2.

What is the mass of the object?

Answers

Answer:

500kg.

Explanation:

Newton's Second Law relates force, mass and acceleration to one another through the equation:

F = ma

We can rearrange this equation algebraically to solve for mass:

m = F/a

Substituting our known values for the variables, we get:

m = 1500N/3m/s2

So mass of the object is 500kg.

We know it's kg because Newtons (N) are a unit defined as 1 kg/m/s2, so m/s2 cancels out when we divide :)

True or False: The reactants and the products of a chemical equation always have the same number of atoms.

Answers

Answer: True

Explanation: It always has the same number because the both have or are using the same product.

C7H6O3+ C4H6O3=C9H8O4+H20
- Balance the above equation.​

Answers

Answer:

2C7H6O3 + C4H6O3 - - - > 2C9H8O4 + H2O

Explanation:

Reactants:

2C7H6O3 + C4H6O3

C = 18

H = 18

O = 9

Products:

2C9H8O4 + H2O

C = 18

H = 18

O = 9

Which of the following chemical reactions produces water via a
synthesis reaction?
a 2H2 + O2 + 2H2O
b NaOH + HCI - NaCl + H2O
C CuO + H2 - Cu + H2O
d H2CO3 → CO2 + H2O

Answers

Answer:

Should be A, but also I think there should be an arrow between O2 and 2H2O

What is the charge on an atom after it gains two electrons during the formation of a bond?
One negative charge
One positive charge
Two negative charges
Two positive charges

Answers

two negative charges because electrons have a negative charge

Nitrogen gas reacts with hydrogen gas to produce ammonia according to the following equation.

N2(g)+3H2(g) → 2NH3(g)
What is the mole of ammonia produced from 7.23 x 10−4 moles of the hydrogen reactant, assuming there is sufficient nitrogen to react?


7.23 x 10−47.23 x 10−4

8.42 x 10−38.42 x 10−3

4.82 x 10−44.82 x 10−4

4.83 x 10−3

Answers

Answer:

4.82 x 10^-4

Explanation:

7.23 x 10^-4 mol H2   l    2 mol NH3

------------------------------------------------------- =  

                                   l    3 mol H2

(7.23 x 10^-4) x 2   /  3 =

4.82 x 10^-4

Hope this helped! ;)

The mole of ammonia produced from 7.23 x 10⁻⁴ moles of the hydrogen reactant when there is sufficient nitrogen to react is 4.82×10⁻⁴.

What is moles?

Moles is a unit which is used to estimate the amount of any substance and it is represented as:
n = W/M , where

W = given mass

M = molar mass

Given chemical reaction is:
N₂(g) + 3H₂(g) → 2NH₃(g)

In the question it is given that sufficient moles of N₂ is present, so the formation of product depends on the moles of H₂. From the stoichiometry of the reaction, it is clear that:

3 moles of H₂ = produce 2 moles of NH₃

7.23×10⁻⁴ moles of H₂ = produce 2/3 × 7.23×10⁻⁴=4.82×10⁻⁴ moles of NH₃

Hence, option (C) is correct i.e. 4.82×10⁻⁴.

To know more about moles, visit the below link:
https://brainly.com/question/1464305

True or false: Equal but opposite forces pushing on the same object produce a net force of zero on the object.

Answers

Answer:

true.................

Answer:

the answer is true hope it helps

I need help with energy

Answers

Answer:

Explanation:

The correct answer is

energy resulting from the flow of charged particles , such as electrons or ions.

hope it helps :)

Which of the following is a true statement about bacteria, based on what Tim and Moby explained??

A: Bacteria exist in only a few environments on Earth.
B: Bacteria can grow to extremely large sizes.
C: Mast bacteria are harmful to humans
D: Bacteria can be both harmful and helpful to humans.

Extra points for help

Answers

I believe it’s D

There is good and bad bacteria that can be both harmful and good for humans

Answer:

D: Bacteria can be both harmful and helpful to humans.

Explanation:

Hope this helps

the following punnett square shows a cross between two hybrid flowers. if the flowers show incomplete dominance, what fraction are pure red? I NEED HELP PLZ!

Answers

Answer:

1/4

Explanation:

Incomplete dominance is when the dominant ("R") gene is not completely dominant and cannot fully mask or cover the recessive ("r") gene. This means that it will result in both genes expressing and a mix of traits appearing. In the case of a flower with "R" genes for red and "r" genes for white, the following possibly combinations exist:

RR = all red, no white "r" gene

Rr = pink, as both the "R" and "r" genes are expressed

rr = white, no red "R" gene

The Punnett Square shows that only one of the four phenotypes is RR and red.

I think it’s 1/4!!!!

How many grams of Sulfur are there in 2.05 x 10^25 molecules of Calcium Sulfate?

Answers

Answer:

1090 grams Sulfur (3 sig-figs)

Explanation:

Given 2.05 x 10²⁵ molecules CaSO₄ => 2.05 x 10²⁵ Sulfur atoms (subscript = 1 mole).

Converting 2.05 x 10²⁵ sulfur atoms to moles, divide by Avogadro's Number

(= 6.023 x 10²³ sulfur atoms / mole sulfur) => 2.05 x 10²⁵ sulfur atoms/6.023 x 10²³ sulfur atoms/mole sulfur atoms = 34.036 moles sulfur atoms.

Converting 34.036 moles sulfur to grams sulfur multiply by formula wt. of sulfur (=32g/mole S)

=> 34.036moles S x 32g/mole S = 1089.158 grams S ≅ 1090 g S (3 sig-figs)

2. Hydrocarbons consist of carbon and hydrogen. 5.7 g of a hydrocarbon contains 4.8 g of carbon.
If the relative molecular mass of the hydrocarbon is 114, determine its molecular formula.​

Answers

Answer:

The molecular formula of the hydrocarbon compound is C₈H₁₈

Explanation:

The type of chemical substance in the question = Hydrocarbon

The mass of the hydrocarbon = 5.7 g

The mass of carbon in the given hydrocarbon (sample) = 4.8 g

The relative molecular mas of the hydrocarbon = 114 g

Therefore, the mass of hydrogen in the sample, H = 5.7 g - 4.8 g = 0.9 g

The ratio of the mass of carbon in the sample = 4.8/5.7

The ratio of the mass of hydrogen in the sample = 0.9/5.7

By the law of constant composition, we have;

The mass of carbon in a mole of the hydrocarbon = (4.8/5.7) × 114 g = 96 g

The molar mass of carbon, C = 12 g/mol

The number of moles of carbon in a mole of the hydrocarbon, 'n₁', is given as follows;

n₁ = 96 g/12 g = 8 moles

The mass of hydrogen in a mole of the hydrocarbon = (0.9/5.7) × 114 g = 18 g

The molar mass of hydrogen, H ≈ 1 g/mol

The number of moles of hydrogen in a mole of the hydrocarbon, 'n₂', is given as follows;

n₂ = 48 g/1 g = 18 moles

Therefore, in each each molecule of the compound, we have have 8 atoms of carbon, 'C', and 18 atoms of hydrogen, 'H'

Therefore, we get;

The molecular formula of the hydrocarbon compound is C₈H₁₈ which is the chemical formula for the hydrocarbon also known as octane

How can changing the reaction conditions influence the yield of a chemical reaction?
please explain in detail

Answers

I’m not sure if this is what you’re looking for, but if the environmental conditions change, it can be impacted. If it’s humid, for example, the reaction can be subdued and you can have a lower percent yield. (In this situation, a chemical not being stored too well could cause it to react a bit with some water in the air before the experiment)

Answer:

I found this on the web hope this helps.  

Explanation:

Le Châtelier's Principle states that a change in pressure, temperature, or concentration will push the equilibrium to one side of the chemical equation. So, if you manipulate the conditions to favor the product side, you increase the yield and vice versa.

Which of the following BEST describes what DNA looks like?

Answers

Answer:

You didn't provide any options but from this, choose the answer in your options.

DNA has a double helix structure. It creates an extremely thin spiral that can not be seen to the naked human eye. It contains sugar and phosphate molecules. The spiral contains colored nitrogenous bases.

I need helps plss!!!!

Answers

Answer:

Copper = 2 Boron = 12 (copper and boron combined = 14)

Explanation:

the number after the element is the amount of atoms there is

A small cart with a mass of 3.0 kg is accelerated from rest and obtains a final velocity of 24 m/s, East in 8.0 s. If friction is neglected, what net force is applied.

a
24 N
b
8.0 N
c
72 N
d
9.0 N

Answers

Answer:

A.

Explanation:

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100 point and brainlist answer the question below

Answers

Answer:

a

Explanation:

because am pro

Which statement best describes the effects chemicals may have on the
environment?
A. The effects of chemicals on the environment are easy to observe.
B. Some chemicals may help the environment.
C. All chemicals harm the environment.
D. Chemicals must be released in large amounts to affect the
environment.

Answers

The answer is B. So yeah

9. What does C12 (g) represents?
A. Chlorine ions
B. Chlorine liquid
C. Chlorine gas
D. Chlorine atom​

Answers

Answer:

chlorine gas since it exists as a diatomic molecule

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