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A chemist must prepare of 800.0 ml potassium hydroxide solution with a pH of 13.00 at 25°. She will do this in three steps: Fill a 800 ml volumetric flask about halfway with distilled water. Weigh out
asked
Feb 27, 2021
Chemistry
college
1
answer
2
votes
111k
views
There are 36 students in Mr. Barrett's math class. If 25% of the students are boys, how many students are girls?
asked
Feb 22, 2021
Mathematics
college
1
answer
0
votes
214k
views
If the soviets had been true to karl Mars theory of communism,what would they have done?
asked
Jan 16, 2021
History
high-school
1
answer
2
votes
229k
views
The base of a right pyramid with apex V is a square ABCD of side 10cm. The length of each slant edge is 15cm. Calculate: a. the height of the pyramid b. the total surface area of the pyramid c. the volume
asked
Jan 9, 2021
Mathematics
high-school
1
answer
0
votes
92.2k
views
Charles buys 4 basketballs at a total cost of $36. What is the price per basketball?
asked
Jan 3, 2021
Mathematics
high-school
1
answer
1
vote
158k
views
A 80 ohms resistor, 0.2 H inductance and 0.1 mF capacitor are connected in series across a generator (60 Hz, V rms=120 V). Determine an impedance and current in the circuit.
asked
Sep 5, 2020
Physics
college
1
answer
2
votes
233k
views
What are the metrorail versus subway pros and cons for a city?
asked
Aug 5, 2020
Social Studies
college
1
answer
3
votes
205k
views
In order to become a government official during the Song Dynasty a person had to pass a mathematics and economics exam. T or f
asked
Dec 3, 2019
History
middle-school
2
answers
3
votes
221k
views
Pyridine (c5h5n) is a particularly foul-smelling substance used in manufacturing pesticides and plastic resins. calculate the ph of a 0.115 m solution of pyridine (kb = 1.4×10-9 ).
asked
Oct 27, 2019
Chemistry
college
1
answer
3
votes
126k
views
Write an equation for the parabola shown in the picture.
asked
Mar 5, 2019
Mathematics
high-school
2
answers
0
votes
189k
views
Which is the transfer of energy as waves moving through space?
asked
Feb 11, 2019
Physics
middle-school
2
answers
1
vote
81.0k
views
The Big Bike Shop has in line skates in sale for 15% off the regular price. A pair of in line skates usually cost $89. Find the amount of the discount and the sales price?
asked
Nov 24, 2018
Mathematics
middle-school
1
answer
5
votes
207k
views
Virginia purchased 3 packets of flower seeds to plant in her garden. if forty-five flowers bloomed, and each packet contained the same amount of seeds, what is the constant of proportionality?
asked
Jul 18, 2018
Mathematics
high-school
1
answer
2
votes
218k
views
Which system of the body does HIV infect? A.reproductive system B. immune system C.excretory system D.digestive system
asked
May 25, 2018
Health
college
2
answers
5
votes
96.9k
views
How do you know that the air you breathe is matter, even though you can’t see it?
asked
Feb 28, 2018
Chemistry
middle-school
1
answer
1
vote
149k
views
Customer support is a range of customer services to assist .. in making cost effective and correct use of a product Options product industry customers all
asked
Jan 4, 2017
Business
high-school
1
answer
4
votes
71.9k
views
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