How many meters per second is the speed of light
Asked by wiki @ in Chemistry viewed by 144 persons
The speed of light is 1.86×10^5 miles per second.how many meters will light travel in 1.0 seconds
Questions in Chemistry
What is the molar mass of iron ii sulfate feso4
Asked by wiki @ in Chemistry viewed by 166 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
Combustion of gasoline in a car engine exothermic or endothermic
Asked by wiki @ in Chemistry viewed by 114 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
An acid that ionizes almost completely in solution is a
Asked by wiki @ in Chemistry viewed by 100 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 …
Isotopes of the same element have the same mass number
Asked by wiki @ in Chemistry viewed by 122 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 …
Which planet takes the longest time to orbit the sun
Asked by wiki @ in Chemistry viewed by 185 persons
Which planet will take the longest amount of time to orbit the sun?
A. Jupiter
B. Mars
C. Mercury
D. Uranus
What determines the intensity of the color of a solution
Asked by wiki @ in Chemistry viewed by 90 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 …
Temperature as the average kinetic energy of a gas increases
Asked by wiki @ in Chemistry viewed by 160 persons
the average kinetic energy of the particles in a gas increases as the temperature of the gas increases. explain
What is the mass of 1 mole of fluorine gas
Asked by wiki @ in Chemistry viewed by 99 persons
Fluorine gas consists of diatomic molecules of fluorine (F2). How many molecules of fluorine are in one mole of fluorine?
One of the main disadvantages of being an endotherm is
Asked by wiki @ in Chemistry viewed by 118 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. …
Solve the following problems express your answers in scientific notation
Asked by wiki @ in Chemistry viewed by 104 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. …
How does the muscular system interact with the digestive system
Asked by wiki @ in Chemistry viewed by 116 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 …
Of the following which atom has the smallest atomic radius
Asked by wiki @ in Chemistry viewed by 74 persons
Choose the atom that has the smallest atomic radius. Na Li K Rb
Which of the following molecules has the highest boiling point
Asked by wiki @ in Chemistry viewed by 295 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 …
What are the four basic needs of all living things
Asked by wiki @ in Chemistry viewed by 137 persons
All living things have four basic needs to live and function. List these four needs.
HELP ASAP
An insoluble solid produced by a chemical reaction in solution
Asked by wiki @ in Chemistry viewed by 110 persons
An insoluble solid produced by a chemical reaction in solution is called
The electromagnetic waves that have the lowest frequencies are called
Asked by wiki @ in Chemistry viewed by 148 persons
The electromagnetic waves that have the lowest frequencies are called
a. radio waves.
c. ultraviolet waves.
b. microwaves.
d. x-rays.
What do isotopes of the same element have in common
Asked by wiki @ in Chemistry viewed by 138 persons
What do all isotopes of the same element have in common?
atomic mass
chemical stability
number of neutrons
number of protons
What happens when a ray of light hits a mirror
Asked by wiki @ in Chemistry viewed by 126 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. …
How to find the amount of neutrons in an element
Asked by wiki @ in Chemistry viewed by 151 persons
How can you calculate the number of neutrons in an atom?
Most viewed questions in Chemistry
Which of the following is true about subatomic particles
Asked by wiki @ in Chemistry viewed by 507 persons
What is the difference between a white and red reaction
Asked by wiki @ in Chemistry viewed by 505 persons
An oxidation reduction reaction that is also a synthesis reaction
Asked by wiki @ in Chemistry viewed by 487 persons
Determine the minimum mass of hydrogen gas required to produce
Asked by wiki @ in Chemistry viewed by 441 persons
Which of the following statements regarding electrical safety is correct
Asked by wiki @ in Chemistry viewed by 430 persons
Calculate the molality of a 20 by mass ammonium sulfate
Asked by wiki @ in Chemistry viewed by 408 persons
What is the uncertainty of a 50 ml graduated cylinder
Asked by wiki @ in Chemistry viewed by 406 persons
Arrange the following elements in order of decreasing ionization energy
Asked by wiki @ in Chemistry viewed by 389 persons
A vitamin c tablet containing 250 mg of ascorbic acid
Asked by wiki @ in Chemistry viewed by 381 persons
Write the mechanism for the reaction of cyclohexane with bromine
Asked by wiki @ in Chemistry viewed by 372 persons
The mass of 1.21 x10 20 atoms of sulfur is
Asked by wiki @ in Chemistry viewed by 366 persons