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Jeffery
Questions (18)
1.00 kg of water that is initially at 100.0°C, what mass of this water can be vaporized?
0 answers
201 views
A metal bolt in a calorimeter gives up 3.6 x103J of energy as heat to the surrounding water. The bolt has a mass of 0.25 kg and
0 answers
660 views
I'm not sure how to do this one
At 22 °C an excess amount of a generic metal hydroxide M(OH)2 is mixed with pure water. The
1 answer
516 views
A geologist measured the amount of 40K in a rock; she determined that there was about 10 grams of 40K and 10 grams of 40Ar.
What
1 answer
895 views
How do I make an electron dot diagram for MgO? (
1 answer
752 views
In a bag there are 2 red marbles 3 white marbles and 5 blue marbles. Once a marbel is picked it is not replaced. Find the
6 answers
2,864 views
Write "3 times the sum of x and 5 is 90" as an equation. You don't have to solve. Thank you in advance!
3 answers
562 views
A seed needs to grow 3 in. in one week. the seed grows 1 7/8 in. one day and 1/2 in. another day. how many more inches does the
1 answer
276 views
On Monday, thirty percent of the pies sold at the pie store were apple. If 24 apple pies were sold on Monday, how many of the
4 answers
1,065 views
Felix used a scale factor of 1 inch = 2.5 feet to draw model of his backyard, as shown below. He is planning to build a fence
6 answers
1,301 views
On Saturday, Alberto filled his right rear tire with air at the gas station around the block from where he lives. Three days
4 answers
673 views
Please Check = is the answer I selected.
1. In _____ countries, a single authoritarian party usually controls the political
7 answers
865 views
calculate the momentum of 2.5 kg puppy that is running with a velocity of 4.8 m/s south
6 answers
4,513 views
An electrochemical cell is created using gold and magnesium half-cells.
a. Determine which half-cell will undergo oxidation and
1 answer
1,066 views
WO3 (s) + 3 H2 (g) -> W (s) + 3 H20 (g)
Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the
1 answer
1,425 views
Calculate te calue of Ksp for Ca(NO3)2 using the data below.
Ba(aq) delta G0f= -561 kJ/mol NO3 (aq) delta G0f= -109 kJ/mol BaNO3
7 answers
1,516 views
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular
5 answers
794 views
Can some one please explain these stanzas to me? I have read them over and over and am still so confused.
Take up the White Man's
1 answer
601 views
Answers (21)
a) We start by adding the first row of the grid. We set $S$ as $1+a+a^2+a^3...$ Then we set $a(S)$ as $a+a^2+a^3+a^4...$ because $a$ is the common ratio. From this we can get $(a-1)S = -1$ which becomes $S = \frac{-1}{a-1}.$ Changing the top part to $1$ we
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the answer is idk im doing this now lol
A circle is 360 degrees, this circle has 9 equal section. Therefore, take 9/360 which equals 40. The measure of each angle for each section is 40.
Better transportation systems
7/35 = .2 Average change = .2
But how would you solve the other 3 then
Thank you.
Thank you!
On Monday, thirty percent of the pies sold at the pie store were apple. If 24 apple pies were sold on Monday, how many of the other types of pies were sold that day? I think I should start with 30/100 and 24/x but I am not sure. =80 80-24 = 56
Thank you!
It is a picture of a square. So maybe I should double the numbers since I need to account for the other 2 sides. 10x2=20 20x$3.50 = $70.00 Is this right?
The numbers are right. I just double checked.
I am still having difficulty finding the expression
Alberto filled his tire on a Saturday. Three days later the tire pressure in the tire measured 26 psi. On the following day one week after he had originally filled the tire, the tire pressure measured 18 psi. I'm to to find b in y=-2x+b I'm trying to solve
the area of the original square piece of paper are 169
ok thank you so much!
Great! Thanks for your help
Oh ok, do you think its just a typo? My teacher said that it is realatively soluble, but more insoluble than other nitrate salts
Sorry, I meant Ba(NO3)2 in the question
sorry but yes it is college algebra
