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

Prove that cosX=cotX/cscC using identities?

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

Help with Physics question?

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

Chemistry question:?

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

Math help?

Hello could someone explain how to answer these questions?

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

math help please help me ?

why sodium hydroxide is not a primary standard?

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

x^16 - 81 :factor?

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

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

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?

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

why is carbohydrate a covalent compound?

Could it of been murder suicide?

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

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

Help with oxidation number of the transition metals!?

Do these significant figures questions have the same answer?

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?

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.?

What is the correct way to solve this problem?

Math trigonometry help please?

simplify: 17i^19?

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

What is the heat capacity of the calorimeter?

Algebra 2 questions?

How do you calculate the Surface Area of a cylinder?

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

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

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

help me plz!?

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.?

Chemistry Help Please?!?

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

MATH HELP?

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?

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

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

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

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

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

Finding derivatives.?

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)?

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