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x - 3x - 4 if x =-2
1. 1 answer
2. 183 views
what is the real name for Ascaris lumbricodoe
1. 2 answers
2. 278 views
The 10th and 15th term of an Ap are -5 and -7½ respectively, what is the sum of the first 20 term
1. 4 answers
2. 2,189 views
why are you came late for school
1. 1 answer
2. 333 views
A parabola f intersect the x-axis at B and C and the y-axis at E.The axis of symmetry of the parabola has equation x=3.The line
1. 1 answer
2. 1,651 views
John and Kathleen are fertilizing their 13,000 square foot lawn,One bag of fertilizer covers 5,000 square feet.What is the
1. 1 answer
2. 554 views
How much higher will mercury stand in the open arm in a J-Tube manometer, if air column in the closed arm is reduced to 4 cm,
1. 0 answers
2. 583 views
Every Saturday,mother and Claire go to the market.On each marketing day,they spend 3 hours including the travel time.What
1. 1 answer
2. 538 views
lf the first of an AP is 7 and 80th term is 393,find the sum of the first 80 terms
1. 1 answer
2. 502 views
45% of a class are girls if these are 40 chidren in the class how many are boys?
1. 1 answer
2. 339 views
a mass of 15kg was suspended from a ceiling is pulled aside with a horizontal force,F, calculate the value of tension, T.
1. 2 answers
2. 1,580 views
evaluate the extent to wich the service delivery protest met?
1. 1 answer
2. 608 views
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.87 g of C6H6 is added to 5.69 kg of
1. 0 answers
2. 649 views
Francine can read 24 pages in 30 minutes.How can you mentally calculate the number of pages she can read in 45 minutes
1. 1 answer
2. 575 views
Three environmental health hazards that cause ill health
1. 1 answer
2. 896 views
what value of k makes the given expression a perfect square?M square -8m+k
1. 2 answers
2. 2,236 views
find the 8th term of an A.P -3,-1,1
1. 3 answers
2. 1,531 views
what is the boiling poinj of cs2,naf andco2
1. 1 answer
2. 393 views
If an albumin solution replaces starch inside the dialysis tube, would it be detected in the liquid outside the dialysis tube
1. 0 answers
2. 475 views
What is the density of 57g and a volume of 6mL
1. 0 answers
2. 672 views
Topic:the practice of high-risk sexual behaviour amongst the adolescence. Describe the life style behaviour and explain 5
1. 3 answers
2. 863 views
how many milliliters of 0.250M KOH will react with 15.0mL of 0.305 M H2SO4?
1. 0 answers
2. 518 views
a 15.00mL sample of NaOH was titrated to the stoichiometric point with 17.40mL of 0.2340M HCl.a) what is the molar concentration
1. 2 answers
2. 1,121 views
calculate the theoretical number of moles of HCl equivalent to 1 mole ofa) NaHCO3 b)CaCO3 c)Al2O3
1. 5 answers
2. 1,483 views
How many milligrams of NaHCO3 are in a 500mg tablet if 40.0 mL of 0.120M HCL is required to neutralize the sample?
1. 6 answers
2. 934 views
How to find the molarity of NaOH when the given is 0.1803 grams of KHPg/mol molecular w. of KHP is 204.2 9.7 ml NaOH
1. 1 answer
2. 467 views
Explain how Hershey's uses flexible manufacturing to meet customer demands
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2. 446 views
how do you find the diameter of a circle if you don't have the radius? the circumference is 628 cm.Divide the circumference by
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2. 805 views
. in one of the periodic publications of the country, whose language is studied, you read article about the liquidation of zoos
1. 2 answers
2. 593 views

Answers (18)

I need explicit answer of the question
wich fraction is less than 5/8
shoe full work
i need answer
3 log 2 + log 20 - log 1.6
report violation to international violation
3.5g
i think of 3 positive numbers. the greatest number is twice a perfect square. the least of them is 1 less than half the greatest number. the average of the 3 numbers is 12.
geography,tourism and maths literacy
Let l = measure of the parallel side of the highway in meters w = measure of the perpendicular side of the highway in meters l + w = 3000 l = 3000 - w length = 3000 - w width = w A= lw **since we will only use 1 side of the length, we will use: A=
oh, you used the molarity to get the mole.. but i don't know what will i do with the 500mg and how to relate (3)and(4) to get the mass of NaHCO3.
thank you. i'm just confused what to use to find the number of moles, when there's mass and other given. thanks for the help.
i didn't round it off, because in our class we have a rule that we should not round off until we get the final answer. NaHCO3 + HCl -> NaCl + H2O + o2 0.040 L / 0.120 mole L = 0.33..
oh! is it right? i need to multiply the number of HCl to 1mol/6.022x10^(23)?
oh, i'm sorry, i was not able to see your answer on my previous question right away. i was posting my questions first, hoping to have answers right a away even with just one of my posts. i'm sorry. and thank you, i'm now using what you told me. :)
i got 0.01371516348 moles of HCl and then the molecular mass of NaHCO3 is 84.008.. how am i going to use these 2 to find the mass of NaHCO3? (sorry, i'm just confused)
a)HCl + NaHCO3 -> NaCl + H2O + CO2 b)2HCl + CaCO3 -> CaCl2 + H2CO3 -> CaCl2 + H2O + CO2 c) Al2O3 + HCl -> AlCl3 + H2O + O2 hmmm a) 1mole b) 2moles 3) 1 ??
write an equation to explain the interaction of the compound,RNH3Cl with NaOH

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