Which analyte test result will be adversely affected by chilling? Ammonia Lactic acid Potassium Renin
Why is it important to use demineralized water? a) Because demineralized water has a lower density than regular tap-water b) Because demineralized water doesn't contain minerals c) Because demineralized water poses less of a health hazard in chemical laboratories d) Because demineralized water has a higher boiling point than regular tap-water
30. __ bonds create molecules of water while __ bonds form between water molecules. None of these are correct covalent, hydrogen ionic, hydrogen hydrogen, covalent hydrogen, hydrogen
What is the degree of unsaturation for the following compound? C_(10)H_(14)N_(2) square
A 40.00 mL sample of 0 .1000 M diprotic malonic acid is , titrated with @.071 M KOH. What volume KOH must be added to give a pH of 5.62? K_(a1)=1.42times 10^-3 and K_(a2)=2.01times 10^-6 Show all of your work on your scratch paper and upload it as a comment to this quiz assignment.
Identify the name of the carboxylic acid shown below. CH_(3) 0 CH_(3)-CH-CH-C-OH CH_(2)-CH_(2)-CH_(3) Select the correct answer below: 3-propyl-2-methylbutanoi cacid 4-isopropylpentanoic acid 2-ethyl-3-methylbutanoic acid 2-isopropylpentanoic acid
Calculate the percentage by mass of lead fly Pb(NO_(3))_(2) 336 MS 6503 The
Question 19 (0.5 points) Gases behave ideally under what conditions? High Temperature and Low Pressure High Temperature and High Pressure Low Temperature and Low pressure Low Temperature and High Pressure Question 20 (0.5 points) Gases deviate from Ideal behavior under what conditions? High Temperature and Low Pressure High Temperature and High Pressure Low Temperature and Low pressure Low Temperature and High Pressure
Question Give the chemical formula of the alcohol that results from the reduction of n-pentanoic acid. Provide your answer below:
What is the correct formula that would result from the combination of the two ionic species? NH_(4)^+ and SO_(4)^2- SO_(4)(NH_(4))_(2) NH_(4)SO_(4) (NH_(4))_(2)SO_(4) NH_(4)(SO_(4))_(2)
Intermolecular forces hold atoms and molecules in place in a solid. True False
What did Boyle discover about fire? It transforms one chemical into another. It creates good conditions for chemical experiments. It needs air to exist. Its temperature is determined by the substances being burned.
Outer electrons are referred to as __ electrons. scatter free roaming target
Phosphorus reacts with iodine as shown in the chemical reaction below.What is the percent yield of the reaction if 28.2 g $Pl_{3}$ is obtained from the reaction of 48.0 g of 12 with excess phosphorus? $2P(s)+3I_{2}(s)\rightarrow 2PI_{3}(s)$ 51.7 g 51.48 51.5 g None of the above 51.98
Select the pair that has the larger atom or ion listed first. $Br^{-},Se^{2-}$ $S,S^{2-}$ $Cl,Cl^{-}$ $F^{-},Ne$ $P,P^{3-}$
What information do you need to look at on the SDS? There is 1 correct answer. Look at Section 2 - Hazards Look at Section 3 Composition / Information on Ingredients Look at Section 4 - First Aid Measures Look at Section 5 - Fire-Fighting Measures Look at Section 6 - Accidental Release Measures
Breaking bonds is hydrolysis. is dehydration synthesis. stores energy. is endergonic.
Which statements are true regarding reaction rates'[Select all that apply.] Larger activation energies are associated with faster reaction rates. Higher reactant concentrations are associated with faster reaction rates. Reducing the activation energy for a reaction increases its reaction rate. Reaction rates depend on how likely molecules are to collide in the correct orientation to react. Reactions that give off heat occur rapidly. Reactions that absorb heat occur rapidly. Large changes in enthalpy are associated with fast reaction rates. At high temperatures molecules are more likely to collide with enough energy to initiate a reaction. Two molecules must collide with one another to react.
If 5.00 g of gray iron powder reacts with 2.38 g of red phosphorus powder, what is the mass of the iron phosphide product? $\square $
How many oxygen molecules do we need to produce four molecules of water? a) 4 b) 2 C) 3 d) 1
