Saturday

April 19, 2014

April 19, 2014

Total # Posts: 20

**science**

dr. halite combined sodium metal with chlorine gas to make sodium chlorine (table salt). The chemical reaction used up all of the metal and sll of the gas. If dr halite made 116 g of table salt and started with 68 g of chlorine gas, then how many grams of sodium metal did he s...

**Math**

In a class of 29 males and females there are 12 females. Write the ratio of males to females. Solve. Express each ratio as a fraction reduced to lowest terms.

**Chemistry**

Pb(C6H2O2)2+KCl= ???

**Chemistry**

Li2SO4+AgNO3= ???

**Chemistry**

Which type of intermolecular force is Cl2 MgF2 NH3 Are they dipole-dipole, dispersion,hydrogen bonding and/or ionic?

**Chemistry**

I'm having trouble putting the work into diminutional analysis

**Chemistry**

I'm having trouble putting the work into diminutional analysis

**Chemistry**

The average human requires 120.0 grams of glucose (C6H12O6) per day. How many grams of CO2 ( in the photosynthesis reaction) are required for this amount of glucose? The photosynthetic reaction is: 6 CO2 + 6 H2O = C6H12O6 + 6 O2

**Chenistry**

How many moles of PbO are needed to produce 4 moles of Pb3O4? Given the equation 6PbO+O2 = 2Pb3O4

**Chenistry**

How many moles of PbO are needed to produce 4 moles of Pb3O4? Given the equation 6PbO+O2 = 2Pb3O4

**Chenistry**

How many moles of PbO are needed to produce 4 moles of Pb3O4? Given the equation 6PbO+O2 = 2Pb3O4

**math**

0.3x-0.2y=0.5 x-2y=-5

**math**

x+14y=84 2x-7y=-7

**math**

Kenisha sells athletic shoes part-time at a department store. She can earn either $500 per month plus a 4% commission on her total sales, or $400 per month plus a 5% commission on total sales. Write a system of equations to represent the situation. What is the total price of t...

**substitution**

Thank you. I'm really having problems with math.

**substitution**

Tickets to a movie cost $7.25 for adults and $5.50 for students. A group of friends purchased 8 tickets for $52.75. Write a system of equations to represent the situation. How many adult tickets and student tickets were purchased?

**math**

Thanks for the help. I really appreciate it.

**math**

Kenisha sells athletic shoes part-time at a department stoe. She can earn either $500 per month plus a 4% commission on her total sales, or $400 per month plus a 5% commission on total sales. Write a system of equations to represent the situation.

**math**

2x-3y=24 x+6y=18 substitution to solve system of equation. no sulution of infinitely many solutions

**statistics**

If Z is a standard deviation, find the probability that Z lies between -1.10 and -0.36 You have not provided enough information to answer that question. Besides, a different symbol should be used for the standard deviation and the variable (Z) itself. Are you sure there isn...

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