david

[匿名]

回覆: 3

2016-06-20 10:52 pm

The volume of the NaOH(aq) solution is expressed to what number of significant figures?

[匿名]

回覆: 3

2016-06-20 10:27 pm

Prove that cosX=cotX/cscC using identities?

[匿名]

回覆: 2

2016-06-18 3:50 am

The decomposition of 128.4g ammonium nitrate yields how many liters of water at 1.89atm and 314K?

[匿名]

回覆: 3

2016-06-08 5:24 am

Help with Physics question?

[匿名]

回覆: 5

2016-05-29 1:26 pm

Solve and explain this exponential equation, please?? 2^((x+1)/x) * (1/2)^x+1= 1 The results are -1 and 1.?

[匿名]

回覆: 5

2016-05-27 7:56 pm

Chemistry question:?

[匿名]

回覆: 4

2016-05-11 5:03 am

Differentiate f (x) = sin^-1(x^4) Find the value of the derivative at x=1/3?

[匿名]

回覆: 9

2016-05-01 12:45 pm

Math help?

[匿名]

回覆: 2

2016-05-01 11:46 am

Hello could someone explain how to answer these questions?

[匿名]

回覆: 4

2016-03-30 6:25 am

3.If the atmospheric pressure for today is 30.75 in Hg. What is this measurement in mm H2O?Remember to always?

[匿名]

回覆: 3

2016-03-28 3:30 am

math help please help me ?

[匿名]

回覆: 6

2016-03-22 11:52 am

why sodium hydroxide is not a primary standard?

[匿名]

回覆: 5

2016-03-22 11:21 am

Balancing oxidation reduction problem (BASIC MEDIUM) PLz. give the balanced equation .. Reducing agent and oxidizing agent thx.?

[匿名]

回覆: 3

2016-03-20 10:47 pm

x^16 - 81 :factor?

[匿名]

回覆: 1

2016-03-08 11:10 pm

Chemistry Help? Determine the amount if oxygen needed to burn the magnesium. Show full calculations Write a balanced chemical equation of it?

[匿名]

回覆: 3

2016-02-24 4:06 pm

General College Chemistry - How many sigma bonds are in 125g of sodium acetate? (CH3CO2Na)?

[匿名]

回覆: 2

2016-02-24 6:42 am

How many grams of PbBr2 will precipitate when excess CuBr2 solution is added to 68.0 mL of 0.682 M Pb(NO3)2 solution?

[匿名]

回覆: 2

2016-02-14 5:36 am

Solve y=x+13 and y=|2x^2-8| Thanks?

[匿名]

回覆: 2

2016-02-04 3:27 am

why is carbohydrate a covalent compound?

[匿名]

回覆: 5

2016-02-03 12:11 pm

Could it of been murder suicide?

[匿名]

回覆: 2

2016-01-26 5:13 pm

To protect your car from freezing to -20 degree C. how do you make C2H6O2 aqueous solition ?

[匿名]

回覆: 3

2016-01-23 8:22 am

the elements iron and oxygen can react to form the compound iron oxide. What type of reaction is this? Explain?

[匿名]

回覆: 3

2015-12-28 4:08 pm

Help with oxidation number of the transition metals!?

[匿名]

回覆: 1

2015-12-24 1:28 am

Do these significant figures questions have the same answer?

[匿名]

回覆: 5

2015-12-17 5:57 am

Write the quadratic function in the form g(x)=a(x-h)^2+k Then, give the vertex of its graph. g(x)=−3x^2+30x-77?

[匿名]

回覆: 3

2015-12-17 5:10 am

Can someone please help. Let theta be an angle in quadrant III such that sin(theta)=-7/8. Find the exact values of sec and cot.?

[匿名]

回覆: 3

2015-12-16 3:35 pm

What is the correct way to solve this problem?

[匿名]

回覆: 3

2015-12-15 9:32 pm

Math trigonometry help please?

[匿名]

回覆: 5

2015-12-12 1:07 am

simplify: 17i^19?

[匿名]

回覆: 2

2015-11-29 11:55 am

Would 1trillion dollars fit in the Whitehouse all at once?

[匿名]

回覆: 1

2015-11-17 8:42 am

What is the heat capacity of the calorimeter?

[匿名]

回覆: 3

2015-11-13 3:12 pm

Algebra 2 questions?

[匿名]

回覆: 3

2015-11-12 6:28 am

How do you calculate the Surface Area of a cylinder?

[匿名]

回覆: 4

2015-11-10 4:03 pm

A farmer wishes to construct 3 adjacent enclosures alongside a river. Each enclosure is x feet wide and y feet long.?

[匿名]

回覆: 3

2015-10-11 11:50 pm

When the polynomial in P(x) is divided by (x - a), the remainder equals P(a). true or false?

[匿名]

回覆: 3

2015-10-08 6:45 am

Show that log base b (p/q) + log base b (q/p) = 0?

人

回覆: 2

2015-10-08 6:08 am

help me plz!?

[匿名]

回覆: 1

2015-09-15 1:37 am

Find derivative of ((-6x)/(x^2+3)^2)) I can't seem to figure out how to do the simplification part of it so please show that work.?

[匿名]

回覆: 1

2015-09-06 9:59 pm

Chemistry Help Please?!?

Mermaid

回覆: 6

2015-09-04 6:47 am

v^2=v^2+2gh Solve for g?

[匿名]

回覆: 1

2015-09-04 2:43 am

MATH HELP?

[匿名]

回覆: 1

2015-09-03 6:56 am

A solution of ammonia and water contains 4.90×1025 water molecules & 9.00×1024 ammonia molecules.How many hydrogen atoms are in this sol?

[匿名]

回覆: 3

2015-09-02 7:24 am

how many moles of strontium atoms are in 13.6 g of Sr?

[匿名]

回覆: 2

2015-09-02 8:12 am

why are solutions usually not cooled quickly or rapidly during crystallization?

[匿名]

回覆: 3

2015-09-01 5:02 am

verify the giving factors of the function then write the complete factorization of the polynomial?

[匿名]

回覆: 2

2015-08-28 4:49 pm

Lim / x-->1 10x+11 / x+1 How do I find the limit ?

[匿名]

回覆: 2

2015-08-18 12:26 pm

Any examples of creative household products that can make our life easier?

[匿名]

回覆: 2

2015-07-29 5:41 am

Finding derivatives.?

[匿名]

回覆: 1

2015-07-23 2:27 am

The molar concentration of a saturated calcium chromate solution is 0.010 M at 25 C. What is the K(sp) of calcium chromate (CaCrO4)?

[匿名]

回覆: 5

2015-07-17 4:11 pm

√110 -n=n. Please solve this question with its steps. Thanks.?