Question

1. 27 Zo + 72 AMvT3 = 27 Zo(MvT3)2 + ? MvT + 36 A2T Look...

1.

27 Zo + 72 AMvT3 = 27 Zo(MvT3)2 + ? MvT + 36 A2T

Look at the chemical equation shown above. What number should be used in place of the ? to balance the equation? show work

2. Megan and Mindy are trying to balance the following chemical reaction equation: H2 + O2 => H2O

What is the balanced equation? show work

3. Senem is trying to balance the following equation:

3Pb(OH)2 + ?H2SO4 => 3PbSO4 + 6H2O

What number should be used to replace the question mark (?) shown in the equation above to balance it?

a. 2

b. 1

c. 0

d. 4

e. 3

4. The solubility limit of sucrose (also known as table sugar) in water is 2,000. grams per Liter of water at 25oC. If Tina has 447 grams of sucrose, how many grams of it will dissolve in 113 mL of water at 25oC? Remember that there are 1,000 mL in 1 L. show work.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Balance the following reaction under basic conditions _O3+_I-+_H2O = _O2+_I2+_OH- 2. How many grams of...
1. Balance the following reaction under basic conditions _O3+_I-+_H2O = _O2+_I2+_OH- 2. How many grams of ozone gas are needed to react with 45.00 mL of a 0.200 M aqueous solution of KI according to the chemical equation shown above? 3. What is the concentration (in mol/L) of OH- at the end of the reaction?
Procedure Reaction 1: Dissolving the Copper 1. Obtain a clean, dry, glass centrifuge tube. 2. Place...
Procedure Reaction 1: Dissolving the Copper 1. Obtain a clean, dry, glass centrifuge tube. 2. Place a piece of copper wire in a weighing paper, determine the mass of the wire and place it in the centrifuge tube. The copper wire should weigh less than 0.0200 grams. 3. In a fume hood, add seven drops of concentrated nitric acid to the reaction tube so that the copper metal dissolves completely. Describe your observations in the lab report. (Caution, Concentrated nitric...
Procedure Preparation of Reagents 1. Starch indicator will be provided 2. Solid potassium iodide will be...
Procedure Preparation of Reagents 1. Starch indicator will be provided 2. Solid potassium iodide will be available 3. 0.3 M H2SO4 will be available 4. ~0.04 M Sodium thiosulfate solution will be provided. You should be able to complete the experiment with 250 mL of this solution. 5. Preparation of 0.01M KIO3 Solution: a. Accurately weigh approximately 0.535 g of solid reagent and record the mass to 4 decimal places. b. Deliver the KIO3 to a 250 mL volumetric flask...
1) Describe an example of each of the following that may be found of your kitchen:...
1) Describe an example of each of the following that may be found of your kitchen: Explain how your choice falls into this category, and if there is a chemical name or symbol for it, provide that as well. Provide a photo of your example with your ID card in it. a) a compound b) a heterogeneous mixture c) an element (symbol) Moving to the Caves… Lechuguilla Caves specifically. Check out this picture of crystals of gypsum left behind in...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
CHE 151-3rd Write your answers in the Blue Book provided. Start each new question at the...
CHE 151-3rd Write your answers in the Blue Book provided. Start each new question at the top of a new page. To receive full credit for problems, you must show the correct setup with units and give your answer with the correct number of significant figures. 1.a) A barometer reads 1.43 atm. Calculate the pressure in mm Hg, and torr. b) If 4.50 L of oxygen is cooled at constant pressure from 200 oC to 25 oC, what is the...
1) There are two naturally occurring types of copper, ^63Cu (62.92960 u) and ^65Cu (64.92780 u)....
1) There are two naturally occurring types of copper, ^63Cu (62.92960 u) and ^65Cu (64.92780 u). a) Given that the atomic weight of copper is 63.546 u, what are the natural abundances of ^63Cu and ^Cu? b) What makes ^63Cu different from ^65Cu. Be specific!! c)Which copper is regular copper and which one is the isotope? 2) Consider the following questions a) Light takes 8 minutes and 19 seconds to reach from the sun to the earth. The speed of...
Below is the background info for the lab assignment. The 4 blank boxes are the questions...
Below is the background info for the lab assignment. The 4 blank boxes are the questions I would like answers too. The end point for the fine titration was 35.90 mL in the burette when the solution turned bright green again. And the coarse titration I got 35.36mL as the end point. 35.9 mL is exact in case you need that info. Thanks! Background In this lab, we will determine the amount of alcohol (ethanol), C2H5OH, in a commercial vodka...
a) A mildly restored ‘Knight-Rider’ 1989 Pontiac Trans Am GTA powered by a 5.7 litre V8...
a) A mildly restored ‘Knight-Rider’ 1989 Pontiac Trans Am GTA powered by a 5.7 litre V8 can do a quarter mile S from rest in a time t of about 15 seconds. Using distance: S=a t2 /2 , force: F=ma and work: W=FS, calculate the amount of work (energy) in kJ required to do the standing quarter mile given that the mass (m) of this Trans Am is 3,500 pounds. Assume that the acceleration (a) is constant. (This is not...
1-25 True or False 1. Sales revenue is an inflow of assets. 2. The three distinct...
1-25 True or False 1. Sales revenue is an inflow of assets. 2. The three distinct types of cost to a manufacturer are direct materials, direct labor, and manufacturing overhead.                       3. Sales Returns and Allowances is a contra-asset account. 4. Like sales revenue, cost of goods sold represents an inflow of assets. 5. With the periodic inventory system the inventory account is updated after each sale or purchase. 6. When merchandise is sold FOB shipping point, the buyer is responsible...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT