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Peach
How many times will a clock display three or more of the same number in a row over the course of one day?
Example- 3:33, 10:00
The number i'm looking for is according to a 12 hour scale not on military time.
3 AnswersMathematics1 decade agoAssign an oxidation number to each atom in the following compound.?
(NH4)2Ce(SO4)3
Answer Format:
For KMnO4 the correct answer would be +1 +7 -2 for the elements K Mn and O respectivley.
2 AnswersChemistry1 decade agoWhich of the following are true statements for the given compound in aqueous solution ?
a) NH3 : A Bronsted base, but not a Lewis base
b) OH - : A Bronsted base and a Lewis base
c) CH3CH2CH2COOH : A Lewis acid, but not a Bronsted acid
d) Fe 3+(aq) : A Lewis acid, but not a Bronsted acid
e) CH3CH2CH2CH3 : Both a Bronsted acid and a Lewis acid
1 AnswerChemistry1 decade agoWhich of the following are conjugate acid-base pairs ?
a) NH3 and NH2-
b) HNO3 and CN -
c) NaF and F -
d) HI and I -
e) HNO3 and NO3-
3 AnswersChemistry1 decade agoWhich of the following are oxidizing agents ?
a) H2
b) Cl2
c) Al
d) Cr
e) C
3 AnswersChemistry1 decade agoA 9.40-g sample of barium hydroxide is dissolved and diluted to the mark in 275.0-ml volumetric flask.?
It was found that 13.60 mL of this solution was needed to reach the stoichiometric point in a titration of 27.04 mL of a solution of HNO3. What is the molarity of the HNO3 solution (before titration) ?
1 AnswerChemistry1 decade agoA 15.60-mL sample of aqueous sodium hydroxide is titrated to the stoichiometric point with 18.00 mL?
A 15.60-mL sample of aqueous sodium hydroxide is titrated to the stoichiometric point with 18.00 mL of 0.256 M HNO3(aq).
What is the molarity of the basic solution (sodium hydroxide) BEFORE it is titrated ? what is the mass of sodium hydroxide in the basic solution?
2 AnswersChemistry1 decade agoFor the reaction AgNO3 (aq) + KBr AgBr precipitates out.?
For the reaction AgNO3 (aq) + KBr AgBr precipitates out.
Calculate the percent yield (%) if 10.217 g of AgBr precipitates when 1.400 L of 0.0600 M AgNO3 (aq) and 1.100 L of 0.0587 M KBr are mixed.
1 AnswerChemistry1 decade agoHow many mL of 14.00 M sulfuric acid?
How many mL of 14.00 M sulfuric acid must be diluted with water to prepare 2.20 L
of a 0.120 M H2SO4 solution?
1 AnswerChemistry1 decade ago6.50 g of solid NaOH are dissolved in water to give a final solution of 25.0 mL .?
6.50 g of solid NaOH are dissolved in water to give a final solution of 25.0 mL .
What is the molarity of this solution ?
1 AnswerChemistry1 decade ago