the number of girl’s in the band is 6 more than twice the number of boys. there are 88 girls in the band. how many boys are there?
money word problem
sugar addict #1 paid $40.25 for 4 bags of chocolate kisses and 5 packages of gummi bears. Sugar addict #2 paid $21 for 3 bags of chocolate kisses and 2 packages of gummi bears.a] how much did each... more
How many MOLES of disulfur decafluoride are present in 7.19×1022 molecules of this compound ?
How many MOLECULES of disulfur decafluoride are present in 1.58 moles of this compound ?
please help!!!drawing a reaction equation (use the structural formulae for the compounds and products) 1. benzoic acid + diethyl ester reaction2. 2-naphthol + diethyl ester reaction3. Sodium... more
How many GRAMS of chlorine are present in 4.22×1022 molecules of phosphorus pentachloride ?
How many ATOMS of phosphorus are present in 2.48 grams of phosphorus pentachloride
How long would the smaller one take, working alone, to fill the tank?
Two pipes are connected to the same tank. When working together, they can fill the tank in 8 hrs. The larger pipe, working alone, can fill the tank in 12 hrs less time than the smaller one. How... more
Find the bicyclist's average speed on each part of the trip.
During the first part of a trip, a bicyclist travels 51 miles at a certain speed. The return trip is made at a speed that is 6 mph slower. Total time for the round trip is 15 hr. Find the... more
What was the speed on each part of the trip?
During the first part of a trip, a canoeist travels 26 miles at a certain speed. The canoeist travels 8 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is... more
Write the balanced net ionic equation for the precipitation of magnesium hydroxide from aqueous solution:
Write the balanced net ionic equation for the precipitation of iron(III) phosphate from aqueous solution:
A 0.312 mol sample of an unknown gas contained in a 8.00 L flask is found to have a density of 1.78 g/L. The molecular weight of the unknown gas is ?? g/mol.
What percentage of the students missed the field trip because they had the flu?
Six students from a class of 37 and 7 students from a class of 34 missed a field trip because they were sick with the flu. Another 3 students missed the trip because they were late for the bus.... more
Pete has just made a batch of Rice Krispies marshmallow treat.
1. Pete has just made a batch of Rice Krispies marshmallow treat. The baking pan measure 13 inches by 9 inches. He has decided that each treat will be 1 1/2 𝑖𝑛𝑐ℎ 𝑏𝑦 1 𝑖𝑛𝑐ℎ.a. First, estimate how... more
You want the volume of the box to be 2 cubic inches
What are the possible side lengths of the box? How many solutions did the equation have? Were all the solutions a possible side length of the box? Explain.
Write the balanced net ionic equation for the precipitation of aluminum sulfide from aqueous solution:
When aqueous solutions of sodium carbonate and cobalt(II) sulfate are combined, solid cobalt(II) carbonate and a solution of sodium sulfate are formed. The net ionic equation for this reaction is:
Write the balanced net ionic equation for the precipitation of zinc carbonate from aqueous solution:
How many milliliters of an aqueous solution of 0.147 M copper(II) bromide is needed to obtain 13.9 grams of the salt?
question written below
An aqueous solution of hydrobromic acid is standardized by titration with a 0.119 M solution of barium hydroxide. If 24.1 mL of base are required to neutralize 26.8 mL of the acid, what is the... more
In the laboratory you dilute 5.09 mL of a concentrated 12.0 M perchloric acid solution to a total volume of 150 mL. What is the concentration of the dilute solution?
Please answer quickly
In my bag 1/3 of the quarters is the same as 2/5 of the dimes. I have 8 more quarters than dimes. How many coins do i have
If 128 grams of calcium carbide, CaC2, is combined with 108 g of water, is there a limiting reagent? If so which reagent is the limiting reagent?
Calcium carbide (CaC2) reacts with water to produce acetylene (C2H2):CaC2 (s) + 2H2O (g) produces Ca (OH)2 (s) +C2H2 (g)If 128 grams of calcium carbide, CaC2, is combined with 108 g of water, is... more