Questions by Serban Teodorescu

Questions by Serban Teodorescu

Calculate the pZn of a solution prepared by mixing 25.0 mL of 0.0100 M EDTA with 50.0 mL of 0.00500 M Zn2 . Assume that both the Zn2 and EDTA solutions are buffered with 0.100 M NH3 and 0.176 M NH4Cl.

asked Apr 22, 2021

1 answer

5 votes

10.6k views

PLEASE HELP! D: The expression on the left side of an equation is shown below. 3(x+1) +9=_ If the equation has no solution, which expression can be written in the box on the other side of the equation?

asked Mar 3, 2021

2 answers

3 votes

80.4k views

A utility pole is 40 ft tall. The pole creates a 50 ft shadow. What is the angle of elevation of the sun? Round your answer to the nearest degree. Draw the triangle. Show your work.

asked Nov 14, 2020

1 answer

2 votes

75.3k views

Three entries for how you can evaluate whether scientific information is reliable

asked Jul 23, 2020

1 answer

4 votes

72.5k views

Liu deposited $3,500 into a savings account 2 years ago. The simple interest rate is 4%. How much money did Liu earn in interest? What would the account earn in 10 years?

asked Feb 18, 2020

2 answers

3 votes

63.0k views

Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they weighed 3.8 pounds, and cost $5.84. How many pounds of apples and how many

asked Jan 24, 2020

1 answer

5 votes

203k views

URGENT! ANSWER IN THE NEXT 5 MIN PLZ! BEING TIMED!!! A trophy consists of 3 right rectangular prisms. The prisms are turned lengthwise and stacked so that the bottom face of each of the top two prisms

asked Oct 24, 2019

2 answers

1 vote

63.3k views

A cell biologist carefully measured the quantity of dna in grasshopper cells growing in cell culture. cells examined during the g2 phase of the cell cycle each contained 200 units of dna. what would be

asked Nov 10, 2018

1 answer

5 votes

230k views

What were the opportunities for females in Rome?

asked Mar 6, 2018

2 answers

2 votes

121k views

The dogs instinct can most accurately be contrasted to

asked Aug 8, 2017

1 answer

2 votes

216k views

Were the Egyptians monotheistic or polytheistic?

asked Jan 6, 2017

1 answer

4 votes

185k views

Jonathan's parents told him that for every 5 hours of homework or reading he completes, he will be able to play 3 hours of video games. His friend Lucas's parents told their son that he can play 30 minutes

asked Dec 15, 2016

2 answers

0 votes

60.9k views

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