Indicate whether the following statement is true or false- According t.docx

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This document contains 3 chemistry questions with explanations of the answers: 1) A question about collision theory being true or false that the answer is false because not all particle collisions result in reactions. 2) A question about the pH of ammonium nitrate that is acidic because it is a salt of a weak base and strong acid. 3) A question identifying a chemical equation as a decomposition reaction because nitrogen pentoxide breaks down into nitrogen dioxide and oxygen gas.

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Indicate whether the following statement is true or false. According to collision theory, a
reaction will occur anytime there is a collision between reactant particles .
a) true
b) false
23
The pH of an aqueous solution of the salt NH 4 NO 3 (ammonium nitrate) will _________.
a) be basic (because it is a weak acid-strong base salt)
b) be acidic (because it is a strong acid-weak base salt)
c) be neutral (because it is a strong acid-strong base salt)
d) not be known (because it is a weak acid-weak base salt)
e) no correct response
Consider the following balanced chemical reaction:
2 N 2 O 5 ------------> 4 NO 2 + O 2
This chemical reaction is a __________.
a) synthesis reaction
b) combustion reaction
c) single-replacement reaction
d) double-replacement reaction
e) decomposition reaction

Solution
Q22)
The answer is FALSE
The reaction will only occur if the colliding particles collide in a proper orientation and
energy which is required for breaking of older bonds and formation of new bonds, hence
all collision won't lead to formation of molecules
Q23)
The correct answer is Option B
Reason: Since it is salt of weak base (NH4OH) and strong acid (HNO3), hence the salt will
be acidic in nature
Q24)
Correct answer is Option E
It is a decomposition reaction, since N2O5 decomposes to form NO2 and O2 gas

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Is it time for IPI to reconsider its salesforce organization by product line? Solution During the period from August 2, 1989, (date of incorporation) through March 1990, the Company was largely inactive. Since that time, the Company has been engaged principally in research and drug discovery programs and clinical development of a drug compound. On July 25, 1994, the Company acquired all of the outstanding Common Stock of ImmunoPharmaceutics, Inc. (\"IPI\") (now discontinued), a San Diego, California based company, in exchange for Common Stock of the Company. TBC consolidated the IPI operation into TBC in the first half of 1996 The Company is presently working on a number of long-term development projects which involve experimental and unproven technology, which may require many years and substantial expenditures to complete, and which may be unsuccessful. To date, other than small amounts of monoclonal antibody compounds and services produced and sold by ImmunoPharmaceutics, Inc. (\"IPI\") (now discontinued), the Company has not developed or sold any products, and no assurance can be given that the Company will be able to develop, manufacture or market any products in the future. In addition, no assurance exists that future revenues will be significant, that any sales will be profitable, or that the Company will have sufficient funds available to complete its research and development programs or market any products which it may develop. Accordingly, the Company is considered to be in the development stage as it has not to date derived significant revenue from its planned principal operations. .

Is it time for IPI to reconsider its salesforce organization by produc.docx

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INITIALS: 22. Which of the following represents a combustion reaction? A) 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g) B) 2011(g) + 702(g) ? 4CO2(g) + 6H2O(l) C) N2(g) +3H(g) 2NH3(g) D) LiOH(aq) +HNO,(aq)LiNOs(aq) + HO0) E) 2Al(s)+3H SO4(aq)Al:(SO) (aq)+3H:(g) The common constituent in all acid solutions is A) CI B) OH C) H D) H2SO E) H2 23. 24. Which of these properties is/are characteristic(s) of gases? A) High compressibility B) Relatively large distances between molecules C) Formation of homogeneous mixtures regardless of the nature of gases D) A and B. E) A, B, and C. 25. Heat is a measure of thermal energy transferred between two bodies at different temperature. a measure of the change in temperature. a measure of temperature. a measure of thermal energy. A) B) C) D) 26. Thermal energy is A) B) C) D) the energy stored within the structural units of chemical substances. the energy associated with the random motion of atoms and molecules. solar energy, i.e. energy that comes from the sun. energy available by virtue of an object\'s position. 27. An exothermic reaction causes the surroundings to A) decrease its temperature. B) warm up. C) expand. D) become acidic. E) release CO2. Solution 22) in combustion reaction, a compound reacts with O2 to form CO2 and H2O This is correct for option B Answer: B 23) All acid have H+ Answer: C 24) All 3 statements are correct Gas occupy the volume of container. So, there is large distance between molecules Due to this it can be compressed a lot Also gas and gas mixture will always be homogeneous Answer: E Only 1 question at a time please .

INITIALS- 22- Which of the following represents a combustion reaction-.docx

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