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hannah
Questions and answers by visitors named
hannah
Questions (468)
The double displacement reaction of aluminum sulfate and calcium hydroxide.
5 answers
4,440 views
what is the name of the ion Ti2(CrO4)3
4 answers
946 views
Which of the following could be added to a solution of sodium acetate to produce a buffer? ?
A) acetic acid only B) acetic acid
3 answers
3,748 views
. A tile setter is joining the angles of two tiles, A and B, to make a 90-degree angle. The degree measure of Angle A can be
6 answers
1,454 views
The length of AB¯ is 5 units.
What is the length of the image of the line segment after a dilation with a scale factor of 5/2?
2 answers
708 views
please help me find the definition for
unit rate. It depends upon what kind of unit. Go to www.google.com and type in unit rate.
14 answers
2,385 views
what is the connection between arabs and electricity?
can not think of any relation but oil to generate energy.
1 answer
862 views
9+9=w
w= 18...right? ............18......dumb...math 9+9=18, you dumbos.
1 answer
402 views
why does a computer need a floopy drive as well as a hard drive
It doesn't . None of my computers have floppy drives. Floppy
1 answer
981 views
what are 4 differences between ionic and covalent bonding? plz help thanks!!
http://antoine.frostburg.edu/chem/senese/101/compoun
1 answer
873 views
It takes 5.28 J of work to stretch a Hookes Laq spring 9.82 cm from its unstressed length. How much extra work is required to
1 answer
580 views
what is an underwater plateau called?
5 answers
349 views
what is a control ,variable, independent variable, experimental variabale, dependent variable
4 answers
2,049 views
A 6 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 1 m/s2, find the force
3 answers
795 views
k-9(2+k)
1 answer
242 views
what art movement is william morris associated with
2 answers
845 views
Jenny's mom runs 3 miles 3 times a week . which number sentence can be used to find how many yards she will run in 1 day?
A 3 x 3
4 answers
643 views
please could someone help me . i need to write a front page newspaper article about queen mary 1 i need to include pictures and
1 answer
467 views
evaluate f(3/4) if f(x)= [1-2x]and identify the range of y=(x)-4 is either {y y > -4 or all are real numbers
1 answer
382 views
find f(-1) if (x)= x2 - 6x/ x plus 2 the multiple choices are -5, -5/3, 7/3, 7 which one is it
1 answer
429 views
the first equation of the system is muti plied by 2. by what number would you mutiply the second equation to elimi nate the x
2 answers
715 views
Imagine that you have a 7.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene
3 answers
908 views
How wide is North America from coast to coast?
1 answer
420 views
how does a saturated lipid differ from a polyunsaturated one?
Is a saturated covalently bonded to a protein molecule?
1 answer
394 views
Calculate the enthalpy of the reaction shown below using the following equations.
H2(g) + F2(g) 2 HF(g) (a) ΔH° = BE(reactants)
2 answers
549 views
For the reaction shown below complete the following calculations.
H2(g) + C2H4(g) --> C2H6(g) (a) Estimate the enthalpy of
4 answers
2,085 views
a lader is leaning against a jouse and is forming a 60 degree angle with the ground.
if the top of the ladder is 24 feet off of
2 answers
515 views
In triangle ABC, D is the centroid and M is the midpoint of segment AC. If BD=x+9 and DM=6, find MB.
2 answers
620 views
The vertices of triangle ABC are A(2,2), B(3,-1) and C(0,1). Find the coordinates of the circumcenter. Answer
1 answer
546 views
what is a factor
3 answers
289 views
is a monomial an expresion that dose not use addition and subtraction
2 answers
472 views
what is a prime factoization
1 answer
334 views
the gcf of :
40ccd,42c
4 answers
320 views
factor expresions:
2+16y and 4-16m
1 answer
330 views
how do u factor an expresion
1 answer
463 views
Fill in the blanks with homonyms:
Can you ___ a good authority to prove that the ____ of this ancient city was discovered by an
3 answers
476 views
The atmospheric pressure at the summit of Mt. McKinley is 554 mm Hg on a certain day. What is the pressure in atmospheres and in
3 answers
1,625 views
would the answer to this question be 0.004166667 meter per 1 minute?
the helepolis could move at a speed of 0.00025 kilometers
1 answer
428 views
my four factors add up to 48. I am a number between30 and 40. What number am I?
1 answer
244 views
what is the study of substances containing carbon?
1 answer
465 views
what i sused to cover toe nails and nails in ancient egypt?????PLZ HELP!
2 answers
481 views
The diameter of a neutral neon atom is about 1.4 multiplied by 102 pm. Suppose that we could line up neon atoms side by side in
2 answers
569 views
how to set up or approach these
1. Calculate the mass in grams of iodine (I2) that will react completely with 48.9 g of aluminum
3 answers
727 views
mary has a solution that is 60% alcohol and another that is 20% alcohol. how much of each should she use to make 100 milliliters
3 answers
1,300 views
what is the chemical formula for
cadmium phosphate?
4 answers
785 views
whats the correct formula for
1. rubidium selenide 2. potassium phosphate
5 answers
458 views
what does coast mean???
4 answers
342 views
is a pretzel topologically equivalent to a pencil, pipe,trophy or none of these?
3 answers
464 views
The inside lane in the track is 50m and the outside of the track is 100m
4 lanes are added around the outside of the track shown
4 answers
518 views
The formula b=34a is used in New England to estimate the minimum furnace output, b, in BTUs, for a modern house with a square
3 answers
822 views
what are the namesofthe six resources?
1 answer
271 views
if one elastic band holds 1800g, how many elastic bands would you need to suspend a 80kg adult?
3 answers
872 views
The hour hand on a certain clock is 8.3 cm long.
Find the tangential speed of the tip of this hand. v{t}= ???? {mm/s}
4 answers
1,338 views
which compounds below that have a vibration that is infrared inactive. and indicate the specfic vibration that is infrared
1 answer
359 views
how will you examine the relationship between acceleration and mass when you change the mass of an object while applying the
4 answers
819 views
what is the chemical formula for vanadium phosphate?
3 answers
838 views
A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that
5 answers
2,784 views
de quien es la casa mean?
1 answer
362 views
Grains of fine California beach sand are approximately spheres with an average radius of 50 and are made of silicon dioxide. A
1 answer
507 views
A room has dimensions 3.00 m (height) 3.70 m 4.30 m. A fly starting at one corner flies around, ending up at the diagonally
4 answers
2,958 views
spelling rule: for words ending in one vowel and one consonant, - - - - - - the final consonant before adding a,e,i,o,u, or y
2 answers
215 views
underline the base word for each word in the box. Then find and circle these base words in the puzzle. The answers will read
4 answers
1,082 views
In the product F = qB (vectors), take q = 2 (neglecting the units of charge, q) and v = 2.0 i + 4.0 j + 6.0 k and F = 4.0 i +
3 answers
1,286 views
A boat is traveling upstream in the positive direction of an x axis at 14 km/h with respect to the water of a river. The water
4 answers
1,383 views
How do the GCF, divisibility and LCM connect to fractions
3 answers
417 views
When dealing with GCF, LCM and divisiability do prime factorization help at all?
3 answers
413 views
Simplify
| –5| – |–3 – 3|
3 answers
249 views
Rewrite the expression in the simplest form without parentheses:
6(18 – y)
6 answers
627 views
Hello,
Can someone help me with my math problem? Does |k – n| = |k| – |n| for all integers k and n? If so, give 3 examples.If
1 answer
359 views
Can someone help me with my math problem? Thank you
Write the integer represented by each of the following: a. A collection of 9
1 answer
423 views
what is the answer to this riddle.
what should you say when u meet an angel
5 answers
820 views
How do people choose where to settle and live ?
3 answers
359 views
if the perimeter of a parallelogram is 132cm the longest possible length of a diagonal is less then ?
2 answers
616 views
True or false: If the human capital possessed by two workers is nearly the same, their wag rates will be nearly the same.
1 answer
315 views
what is the percent is 2/6
1 answer
251 views
how do you simplify 15/56?
1 answer
237 views
How do I do this 4x +3= 2x+11
1 answer
230 views
is the solution to 2x^2-4x+5...
1(+/-)((sqrt6)/2)i ??
1 answer
296 views
how do u do 18t +12r over 3?
1 answer
353 views
when Flour, water, sugar and other ingredients are combined and baked into a cakeis that a chemical change?
1 answer
395 views
a)339 Cal to kilowatt-hours
1 answer
326 views
3. Define proactive & retroactive inhibition. Create a memory strategy to help you remember & discriminate between them. Explain
2 answers
518 views
A 43 kg sample of water absorbs 343 kJ of heat. If the water was initially at 22.1°C, what is its final temperature?
I got 1.9
6 answers
1,439 views
ok so I did a radiation and distance lab: this is my results:
Distance(cm) Counts(30 sec) 0 1729 1 634 2 391 3 239 4 150 5 124 6
1 answer
364 views
what is the equation for gamma decay?
1 answer
408 views
how can you use rounding to estimate 331+193
3 answers
638 views
Determine the mass(in grams) of each of the following compounds.
a) 0.709 mol magnesium fluoride i got 30.7grams but it was
6 answers
402 views
How many moles of O are in 13.5 mol Fe(NO3)3?
i got 7.32e25 but soon realized that is totally wrong.
3 answers
444 views
so i posted this question yesturday and got some help. which is the stuff below. can you look at the last thing i said which was
7 answers
944 views
A 4.91 g sample of aluminum completely reacts with oxygen to form 6.85 g of aluminum oxide. Use this data to calculate the mass
3 answers
615 views
Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride in grams required to
7 answers
6,711 views
suppose you had two samples of the same radioactive isotope. one sample had a mass of 25 grams. the other had a mass of 50
4 answers
1,933 views
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide.
1
3 answers
3,920 views
Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H,
4 answers
2,539 views
you measure the period of a 2.0m pendulum and find it is 2.8s. what is the value of g at your location?
4 answers
503 views
What length pendulum will produce a period of 1.0s?
2 answers
640 views
For english i need to write a paper of the the slang words used during the civil war. I already have many examples but i cant
3 answers
734 views
i had posted this question about a week ago and had gotten help from bobpursley(thank you so much btw) but i was showed how to
3 answers
560 views
The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 1.1 kg of
1 answer
433 views
Find the value of sec theta for angle theta in standard position if the point at (–2, –4) lies on its terminal side.
If 0°
3 answers
1,821 views
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