What will happen as an object receives energy due to heat flow? The molecules will move faster. The molecules will move more slowly.

Answers

Answer 1

Answer: The correct answer is the first option. If an object receives energy from heat flow, the molecules of that object will move faster because temperature and kinetic energy is directly proportional. As the heat is added, the temperature increases therefore increasing the kinetic energy of the molecules resulting to a faster motion.

Answer 2

Answer:

The molecules will move faster

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Several substances are labeled on the pH scale below.A p H scale is shown ranging from 0 the top to 14 at the bottom. The approximate locations of substances are: gastric fluid, 1.2; lemon juice, 2.2; milk, 6.5; blood, 7.5; seawater, 8; milk of magnesia, upper M g (upper O upper H) subscript 2 solution, 10.5; household lye, upper N a upper O upper H solution, 13.5.

Which substance has the lowest [H+] concentration but is still considered an acid?

Answers

Answer:

(A) - Milk

Explanation:

Acids cannot go below the 7 mark, and milk is the last one right before 7

How many grams of oxygen are required to react with 10.0 grams of octane (C8H18) in the combustion of octane in gasoline?

Answers

Oh fun, stoichiometry. So the equation for this is C8H18+O2----> CO2+H2O, or
2C8H18+25O2----> 16CO2+18H2O when balanced. 10/114.229 g/mol = .087543... mol, converting to moles by dividing by molar mass. The ratio is 25/2, using the integers in front of the molecules in the balanced equation. so you just multiply .087543... by the ratio. That's 1.09429, which you multiply by the molar mass of O2, 31.9988 g/mol. The answer is 35.02 g O2

35.2 grams of oxygen are required to react with 10.0 grams of octane

$\boxed{\boxed{\bold{Further~explanation}}}$

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O

Hydrocarbon combustion reactions (specifically alkanes)

$\large{\boxed {\bold {C_nH _ (_2_n _ + _ 2_) + \frac {3n + 1} {2} O_2 ----> nCO_2 + (n + 1) H_2O}}}$

For gas combustion reaction which is a reaction of hydrocarbons with oxygen produces CO₂ and H₂O (water vapor). can use steps:

Balancing C atoms, H and last atoms O atoms

Octane combustion reaction

C₈H₁₈ + O₂ ---> CO₂ + H₂O

To equalize the reaction equation we give the reaction coefficients with variables a, b and c while the most complex compounds, namely Octane, we give the number 1

So the reaction becomes

C₈H₁₈ + aO₂ ---> bCO₂ + cH₂O

C atom on the left 8, right b, so b = 8

left H atom = 18, right 2c so 2c = 18 ---> c = 9

Atom O on the left 2a, right 2b + 2c, so 2a = 2b + 2c

2a = 2.8 + 9

2a = 16 + 9

2a = 25

a = 25/2

The equation becomes:

C₈H₁₈ + 25/2O₂ ---> 8CO₂ + 9H₂O or be

2C₈H₁₈ + 25O₂ ---> 16CO₂ + 18H₂O

To find the mass O2, we find the mole first from the mole ratio with Octane

1. We are looking for the octane mole

Mr. octane = 8.Ar C + 18.Ar H

Mr. octane = 8.12 + 18.1

Mr octane = 96 + 18

Mr octane = 114

known octane mass: 10 grams then the mole:

mol = gram / Mr

mol = 10/ 114

mol = 0.088

2. We look for the O₂ mole

because of the ratio of the reaction coefficient between O2 and octane = 25: 2 then the mole of O₂ =

25/2 x 0.088 = 1,1

So that the mass O₂ =

mole. Mr = 1.1 32

mass = 35.2 grams

$\boxed{\boxed{\bold{Learn~more}}}$

a combustion reaction

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the type of chemical reaction

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The combustion of alkanes, alkenes, and alkynes

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Complete combustion of a sample of a hydrocarbon

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Keywords: Complete combustion of Hydrocarbons, alkanes, equalize the reaction equation

A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. How many grams of N2 must react to form 1.7 grams of ammonia, NH3? 0.0058 g .052 g 1.4 g 2.8 g

Answers

Since the percent yield of the reaction is 98%, that means that 1.7g of ammonia is 98% of the theoretical yield so you need to find what the theoretical yield is by dividing 1.7 by .98 to get 1.735g. Since you know that the theoretical yield is 1.735g you can use stoichiometry to figure out how much N₂ is required in order to produce 1.735g of ammonia.

To do that you first need to find the balanced chemical equation for the reaction which is N₂+3H₂⇒2NH₃. Then you need to find how many moles of ammonia are in 1.735g by dividing 1.735 by the molar mass of ammonia (17g/mol) to get 0.1021mol of ammonia. After that you can find the number of moles of N₂ required to make 0.1021mol of ammonia by using the fact that 1mol N₂ is used to make 2mol NH₃ so you divide 0.1021 by 2 to get 0.05103mol N₂. lastly you can find the number of grams of N₂ by multiplying 0.05103 by the molar mass of N₂ (28g/mol) to get 1.42g of N₂. Therefore 1.4g of N₂ is required to make 1.7g of ammonia.

I hope this helps. Let me know in the comments if anything is unclear.

Which of the following products is petroleum based? A) steel B) maglev C) plastic D) iron E) Internet

Answers

The product that is petroleum based is the plastic. The answer is letter B. Steel, iron and maglev are metals derived from coals. Internet is also not a petroleum based product

petroleum based is materiel's that contains different kinds of oil and fuel. "which are used in chemical processes to produce plastics".

Doing another onee! 50 points for answering thiss!

Answers

Answer:

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Answer:

are you increasing your followers

Explanation:

if yes then I will follow you

Which of these statements best describes the similarity between the two events shown in the diagram?Select one:
a. Both may result in eclipses of the sun or moon.
b. Both may cause the moon's shadow to fall on Earth.
c. Both may cause Earth's shadow to fall on the moon.

Answers

Answer:

Both may result in eclipses of the sun or moon

Explanation:

Got it right on the test

Other Questions

Consider the following reaction: 2Mg(s)+O2(g)-->2MgO(s) delta H=-1204kJa) Is this reaction exothermic or endothermic? exothermic endothermicb) Calculate the amount of heat transferred when 3.55 g of Mg(s) reacts at constant pressure. delta H = -87.9 kJc) How many grams of MgO are produced during an enthalpy change of -238 kJ ? m = ?gd) How many kilojoules of heat are absorbed when 40.5 g of MgO(s) is decomposed into Mg(s) and O2(g) at constant pressure? delta H =? kJ

Calculate the mass of HCl required to prepare 2.5 liters of a 0.08 molar solution of HCl. 1 H 1.01 Hydrogen 17 Cl 35.45 Chlorine

What is the solute and the solvent in a carbonated drink?

In a chemical change, the same atoms are recombined into a new substances,TrueOr False