mateo
Most popular questions and responses by mateo
Chemistry
What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water bottle? HCl(aq)+NaHCO3(aq)=>NaCl(aq)+CO2(g)+H2O(l)
asked on April 13, 2011 
math
One batch of fruit salad has equal amounts of which kinds of fruit?Explain how you decided.
asked on March 25, 2013 
Physics
The generator at a power plant produces AC at 24,000 V. A transformer steps this up to 345,000 V for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?
asked on April 28, 2011 
Social Studies
Why did Rome became a republic? A. The king's broad powers allowed him to mistreat his people. B. The established monarchy wasn’t powerful enough. C. The aristocrats misused their power. D. The poor formed a rebellion against the aristocrats.
asked on March 7, 2019 
physics
What is the frequency of the EM wave emitted most strongly by a glowing element on a stove with temperature 1,500 K
asked on April 28, 2011 
Chemistry Assignment Followup
Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury mineral complex. The first step in processing these ores involves “roasting” the ore in air to produce the metal or metal oxide, along with nonmetal
asked on November 6, 2017 
physics
The wavelength of an electromagnetic wave is measured to be 600 m. What is the frequency of the wave?
asked on April 28, 2011 
space
gowing 10,00 miles per hour how long will it take to get to jupiter from earth with earth the sun and jupiter alined like a straight line or just an estimation
asked on November 14, 2010 
space
traveling 10,000 miles per hour how long will it take to get to jupiter from earth
asked on November 14, 2010 
math
two trains leave at the same time from stations 284 miles apart, traveling toward each other at 33mph and 38 mph respectively. how long will it take them to meet?
asked on October 16, 2010 
fractions
Eric and frank want to share 1and 1/3 feet of rope . What length of rope should each friend get?
asked on March 6, 2013 
Math
Sally bought a sweater for $46.75 that originally cost $85.00. What was the percent of decrease from the original to the sale price?
asked on January 15, 2013 
Math
bills' trail mix has 6 cups of walnuts and 10 cups of cranberries. using the same recipe, how many cups of walnuts go with 15 cups of cranberries
asked on April 27, 2014 
math
What is mental math?
asked on September 30, 2013 
physics
What is the wavelength of the peak of the blackbody radiation curve for the human body (T = 310 K)?
asked on April 28, 2011 
space
what is the day and nigh time temp. on jupiter
asked on November 14, 2010 
Chemistry Repost?
Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury mineral complex. The first step in processing these ores involves “roasting” the ore in air to produce the metal or metal oxide, along with nonmetal
asked on November 8, 2017 
Physics
A ball is thrown upwards with an initial velocity of 70 m/s 1. What is the velocity after 3 seconds? 2. What is the acceleration at the top of its path? 3. How many seconds does it take the ball to go up? 4. How many seconds does it take to hit the ground?
asked on January 28, 2016 
math
Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizz.marty ate more pizza than luis.how is that possible?
asked on March 18, 2013 
math
How can you order 3 fractions by using a number line?
asked on March 25, 2013 
math
How can you order 3 fractions by using a number line?
asked on March 25, 2013 
social studies
How many regions does the United States have?
asked on March 19, 2013 
math
Why is 1/8 greater than 1/10 but less than 1/3?
asked on March 18, 2013 
unkown
How many people have 91% of vitiamans?
asked on March 7, 2013 
math
28 kids were waiting at a bus stop.19 kids went to play.How many kids are waiting at the bus stop?
asked on March 6, 2013 
science
need a science project for 7th grade using toy train.
asked on January 29, 2011

Math
You're so stupid!!!
posted on July 9, 2019 
Math
thanks big help
posted on July 9, 2019 
Chemistry Repost?
Bobpursley?
posted on November 8, 2017 
Math
Ya
posted on April 6, 2017 
3rd grade math
You can say a yard is 3 ft and you say it like 3 times table
posted on December 11, 2016 
math
Me too
posted on December 11, 2016 
math
The first answer is 1 and 1/2 so you divide 3/2*2/1=1 1/2
posted on December 11, 2016 
Math
THE LOAN ARRANGER
posted on November 16, 2015 
physics
R1 and R2 are both the radius of the circles at the bottom and top respectively. I don't know the answer, I'm looking into that as well. At least you know that it's a radius now! :D
posted on November 18, 2014 
math
8 ducks and 4 cows D + C = 12 8 + 4 = 12 2 D + 4 C = 32 2(8)+ 4(4)= 32 16 + 16 = 32 32 = 32
posted on September 21, 2014 
algebra
I think the green creatures had about 12 and for the amount of blue creatures is 32 and the exception of the leader of the aliens which states that it had 3 heads and 4 feet to complete the solution of this problem.
posted on November 20, 2013 
math
Might be subtraction.so I don't know this.
posted on March 7, 2013 
3rd grade math
7/10 is greater
posted on March 6, 2013 
physics
Acceleration is Delta V, over Delta T which equals V2V1, over Delta T Delta referring to the change in velocity and change in time
posted on October 18, 2012 
chemistry
Thanks Dr.Bob!
posted on April 13, 2011 
space
thanks i know that its not an exast answer did a hole project on it... but the teacher asked so an estimated answer is all i need... as i said thanks any way ...
posted on November 14, 2010 
space
yes i know ... say at opposie sides of the sun.
posted on November 14, 2010