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Bekah
Questions (15)
A 1000 kg car traveling at a speed of 40 m/s skids to a halt on wet concrete where mk = 0.60. How long are the skid marks?
0 answers
174 views
Two workers are sliding a 300 kg crate across the floor. One worker pushes forward on the crate with a force of 380 N while the
1 answer
284 views
a man's age today is 2 years more than three times the age his son will be 5 years from now. let a represent the son's age
4 answers
1,510 views
is this true:Introductory participial phrases and adverb clauses are set off from main clauses by commas.
1 answer
1,614 views
when a 0.702g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 4287 J/C, the
2 answers
1,343 views
Write formation reactions for the following. (You must include the states of matter for each atom or compound)
A. Ca(NO3)2 (s) B.
2 answers
7,323 views
How many milliliters of 0.100 M HNO3 are needed to neutralize the following solutions?
A. 45.0 mL of 0.667 M KOH B. 58.5 mL of
5 answers
8,661 views
Calculate the concentrations of the following solutions, assuming the volumes are exact measurements:
a. 18.64g of sodium
1 answer
580 views
Zinc, copper, lead, and mercury ions are toxic to Atlantic salmon at concentrations of 6.42 times 10 to the -2 mM, 7.16 times 10
1 answer
688 views
How many grams of solute are needed to prepare each of the following solutions?
A. 1.000 L of 0.180 M NaCl B. 250.0 mL of 0.150 M
1 answer
1,540 views
Iron (II) ions can be precipitated from the following reaction:
4Fe(OH)+(aq) + 4OH-(aq) + O2(g) + 2H2O(l) --> 4Fe(OH)3(s) How
1 answer
555 views
What is the concentration, in units of molarity, of a 350 mL solution containing 0.298 moles of sodium chloride in water?
2 answers
531 views
A 8.00 M solution of hydrochloric acid is provided. You need to make 25.0 mL of a 0.490 M HCl solution. What volume, in mL, of
1 answer
436 views
The number of trophic levels that can be maintained in an ecosystem is limited by:
a. a gain in population size b. the loss of
1 answer
888 views
What is the variable being tested in an experiment called?
2 answers
1,012 views
Answers (14)
I already did this and the correct answer is C.
What in the world...
The correct answers are: 1.) C 2.) A 3.) C 4.) D 5.) A 6.) B 7.) A 8.) B
144/24 = 6
A trick is to just look for the element in the equation that is paired on one side, but not on the other. This being said, the following answers are correct. Redox: 2CO+O2 = 2CO2 Zn+CuCl2 = ZnCl2+Cu Non-Redox: SO3+H2O = H2SO4 HCl+NaOH = H2O +NaCl
They cannot explode like a nuclear bomb, that's for sure.
A and D are right.
A is the correct answer.
Solubility and Precipitation: 1. Alkali Metal Cations, ammonium cations= Soluble. 2. Nitrate Anions, Acetate Anions= Soluble. 3. Halogen anions= Soluble...except: Ag+, Cu+, Hg2 +2, and Pb+2. 4. Sulfate Anions= Soluble...except: Ba +2, Ca+2, Hg2 +2, Pb+2,
Step 1: Eric = 1/2 of Dans; Eric + Dan = 18 Step 2: 12 + 6 = 18 Step 3: Eric has to be 6 because half of 12 is 6 and when you add them together you 18. Step 4: Equation- Part A: D = 12; E = 1/2D; T= 18. Equation- Part B: E + D = T so... 1/2D + D = 18!!!!
R because the others all have set limitations. R is the only one that makes sense! Since numbers can go on forever that means numbers greater than 18 would be infinite!
-72/14*14/-72 (cross multiply) ?
the info of about the circle is irrelevent. Since the triangel is isosceles than that means another side of it is 4r. Find the missing side then use the area of a triangle formula!
First off, it is one thing to ask for assistance because you do not understand something. It is a completely different thing for someone to give you all of the answers. It really is your loss though, because instead of getting the reasoning why and
