Questions in Chemistry

how many meters per second is the speed of light

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 45 persons

The speed of light is 1.86×10^5 miles per second.how many meters will light travel in 1.0 seconds

what is the molar mass of iron ii sulfate feso4

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 46 persons

What mass of FeSO4^2- x 6H20 (Molar Mass=260g/mol) is required to produce 500 mL of a .10M iron (II) sulfate solution. A.) 9g B.) 13g C.) 36g D.) 72g

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combustion of gasoline in a car engine exothermic or endothermic

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 37 persons

The burning of gasoline in an automobile engine is an example of a(n) _____. Select one: a. reversible reaction b. photosynthesis reaction c. endothermic reaction d. exothermic reaction

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an acid that ionizes almost completely in solution is a

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 39 persons

Strong acids are those that ionizes almost completely in water. to be considered a strong acid, an acid must have an acid ionization constant ka > 55. the strong acid hcl …

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isotopes of the same element have the same mass number

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 35 persons

All isotopes of an element have the same number of neutrons. have the same number of protons. have the same atomic number. have the same mass number. have different chemical …

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which planet takes the longest time to orbit the sun

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 34 persons

Which planet will take the longest amount of time to orbit the sun? A. Jupiter B. Mars C. Mercury D. Uranus

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what determines the intensity of the color of a solution

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 36 persons

g What happens to the intensity of the solution's color as the concentration of the solute changes? The intensity of the color directly changes in response to the concentration. The …

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temperature as the average kinetic energy of a gas increases

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 30 persons

the average kinetic energy of the particles in a gas increases as the temperature of the gas increases. explain

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what is the mass of 1 mole of fluorine gas

Questioned by administrator @ 04/12/2021 in Chemistry viewed by 36 persons

Fluorine gas consists of diatomic molecules of fluorine (F2). How many molecules of fluorine are in one mole of fluorine?

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one of the main disadvantages of being an endotherm is

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 32 persons

This rabbit lives where it gets very cold in the winter. It does this easily because it is an endotherm. Being an endotherm or warm-blooded has its advantages and disadvantages. …

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solve the following problems express your answers in scientific notation

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 32 persons

4. Express the answers to the following problems in scientific notation. Hint: Use the subtraction example to solve the addition problem. A. (1.8 X 1020) X (2.5 X 10^16) C. …

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how does the muscular system interact with the digestive system

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 35 persons

How do the muscular system and digestive system relate to one another? Question 1 options: If your body needs more food, and you cannot eat. the muscular system helps the …

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of the following which atom has the smallest atomic radius

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 33 persons

Choose the atom that has the smallest atomic radius. Na Li K Rb

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which of the following molecules has the highest boiling point

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 33 persons

Using what you know about intermolecular forces, determine which of the following molecules has the highest boiling point. Using what you know about intermolecular forces, determine which of the following …

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what are the four basic needs of all living things

Questioned by administrator @ 03/12/2021 in Chemistry viewed by 36 persons

All living things have four basic needs to live and function. List these four needs. HELP ASAP

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an insoluble solid produced by a chemical reaction in solution

Questioned by administrator @ 02/12/2021 in Chemistry viewed by 35 persons

An insoluble solid produced by a chemical reaction in solution is called

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the electromagnetic waves that have the lowest frequencies are called

Questioned by administrator @ 02/12/2021 in Chemistry viewed by 28 persons

The electromagnetic waves that have the lowest frequencies are called a. radio waves. c. ultraviolet waves. b. microwaves. d. x-rays.

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what do isotopes of the same element have in common

Questioned by administrator @ 02/12/2021 in Chemistry viewed by 29 persons

What do all isotopes of the same element have in common? atomic mass chemical stability number of neutrons number of protons

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what happens when a ray of light hits a mirror

Questioned by administrator @ 02/12/2021 in Chemistry viewed by 31 persons

Which explanation is true about what happens to a ray of light when it strikes a mirror? A. A light ray is transmitted toward a mirror at a certain angle. …

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how to find the amount of neutrons in an element

Questioned by administrator @ 02/12/2021 in Chemistry viewed by 33 persons

How can you calculate the number of neutrons in an atom?

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Questions in Chemistry

how many meters per second is the speed of light

what is the molar mass of iron ii sulfate feso4

combustion of gasoline in a car engine exothermic or endothermic

an acid that ionizes almost completely in solution is a

isotopes of the same element have the same mass number

which planet takes the longest time to orbit the sun

what determines the intensity of the color of a solution

temperature as the average kinetic energy of a gas increases

what is the mass of 1 mole of fluorine gas

one of the main disadvantages of being an endotherm is

solve the following problems express your answers in scientific notation

how does the muscular system interact with the digestive system

of the following which atom has the smallest atomic radius

which of the following molecules has the highest boiling point

what are the four basic needs of all living things

an insoluble solid produced by a chemical reaction in solution

the electromagnetic waves that have the lowest frequencies are called

what do isotopes of the same element have in common

what happens when a ray of light hits a mirror

how to find the amount of neutrons in an element

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