the empirical formula of a compound is NO2. it's molecular mass is 92g/mol. What is its molecular formula?
Answers
The molecular formula is N₂O₄.
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What happens when a magnet is passed through a wire loop
Describe the difference between polar covalent bonds and nonpolar covalent bonds using these two molecules - H2 and HCl. Which molecule contains a polar covalent bond and which molecule contains a nonpolar covalent bond? Explain your reasoning alongside describing the differences between the types of bonds.
A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H2O(l) ⟶ 2NaOH(aq) + H2(g) The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 246 mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction. (Vapor pressure of water at 25°C = 0.0313 atm.)
True
False
Answers
Answer:
It's true I got it wrong.
Explanation:
Kp = 5.7, 1200K
Calcualte the total pressure at equilibrium when 4.45g CO2 is introduced into a 10.0L container and heated to 1200K in the presence of 2.00g of graphite
Answers
At first you have to find n1 =moles of CO2 and n2 which are moles of C
The you go :
n1 n2 0
-x -x +2x
After that you have to use the formula
Then you have to solve x, and for that you have to use RT/V
And to find total values:
I am absolutely sure that this would be helpful for you.
b. oxidation
c. decomposition
d. none of the above
Answers
Answer:
Option (A)
Explanation:
Radioactivity is defined as a process in which an unstable atomic nucleus decays continuously and after a specific period of time changes into a much more stable element. During this time of decay, the nucleus emits charged particles (energy) which are known as the α, β and γ particles. These are often emitted in the form of electromagnetic energy and are very dangerous to health.
The radioactive elements decay at a certain rate which is commonly known as the half-life. Half-life is basically defined as the time required by a radioactive substance to decay half of its initial composition.
Thus, the correct answer is option (A).
Answers
Specialized cells are generally found only in multicellular organisms.
What are multicellular organisms?
A multicellular organism can be described as an organism that contains more than one cell, in contrast to a unicellular organism. Multicellularity has been independently at least 25 times in eukaryotes and in some prokaryotes, like myxobacteria, cyanobacteria, and actinomycetes.
All species of animals, plants, and most fungi are multicellular organisms, whereas a few organisms are partially uni- and partially multicellular, such as slime molds and social amoebae.
Multicellular organisms develop in many ways such as by cell division or by aggregation of many single cells. Colonial organisms can be defined as identical individuals joining together to form a colony.
Unicellular organisms are divided, and the daughter cells failed to separate which results in a conglomeration of identical cells in one organism, which could develop specialized tissues.
Learn more about Multicellular organisms, here:
#SPJ2
Answer:
Specialized cells are found only in multicellular organisms.
Explanation:
Or organisms are made up of more than one cell.
Answers
Hope that helped you.
It's a physical because you have to actually do the work by using your hand to give a haircut
4 faces
6 faces
8 faces
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The tetragonal crystal system below possesses two faces. The two axes are of equal length and are in the same plane, the main axis is either longer or shorter and all three intersect at right angles. The Crystal shapes include four-sided prisms and pyramids, hexacisochedron.