lenpol7

Help with logarithms?

is calcium hydroxide is acidic,alkaline or neutral?

The density of aluminum is 2.70 g*cm^3. What is the volume and edge length of a cube of Al with a mass of 10.0 g.?

How the metals at the top of the reactivity series can be extracted from their ores?

number of protons, neutrons, and electrons?

what is the number of protons, neutrons, and electrons of 2H and how do you calculate it?

Is CO2 organic or inorganic molecule ? Why ?

HP persamaan sin(3x-15)°=¹/²√2 untuk 0°<x<180° adalah?

Balance these reactions and please show how you did it: c) NO + H2 → NH3 + H2O (d) H2 + O2 → H2O (e) Al + O2 → Al2O3?

If the total mass does not change before and after a chemical reaction then why Ca+H2O=>CaOH+H2 has 2 hydrogen atoms at first then 3 after?

Write the ratio: 2 4/5 to 4 3/5 as a fraction in lowest terms.?

If X - 42 = 0 then X = ?

Natural Log Question?

Calculate the amount of heat required to raise the temperature of a 48g sample of water from 53°C to 88°C.?

Can some one please explain to me how to easily solve a chemistry equation like 2 HCl + 2 Na?

What kind of bonds does helium form with oxygen?

chem help please?

when metal combine to acid what will it form?

If I have produced 1 mL of and ester and the density is 1.05 g/mL, what is the mass?

Use addition or substitution to find the value of x for this set of equations. x + y = 14 x = 6y?

What is molaritiy of the soiution prepared by dissolving 75.5 g of pure KHO in 540 ml of solution?

Chemistry, limiting reactants?

Write a charge balance of NaHCO3?

What is the molarity of a solution made by mixing 2.80g of KOH with enough water to make 750. ml of solution?

help calculus?

Explain what type of bond an atom with 2 electrons (NOT Helium) in its outermost shell will form.?

A base oxide soluble in water?

Unique girl names ?

Why is 0! equal to 1?

What is your favorite overly used girls name?

how many liters of a 3.0 M H3PO4 solition are required to react with 4.5 g of zinc?

What are the reactants and products of CaCO3 ----> CaO + CO2 ? How do you figure that out?

Mg(s) + 2 HCl(aq)  MgCl2 (aq) + H2(g) b. What mass of magnesium will react with 8.5 liters of 0.7 M hydrochloric acid?

(x/x-1)-(2x/x^2-1)?

Pre-Calc Help Please Find the exponential function f(x)=Ca^x whose graph goes through the points (0,3) and (2,12). Thank you.?

Write equations for the reactions between (a) CO2 and NaOH(aq), (b) Na2O and HNO3(aq)?

p= a+b+c formula?

What is wrong with my equation?

the sector of a circle has a central angle θ=(π/4) and area (9π/8) ft2., what is the radius of the circle?

How to solve log8/log2? working out too plz?

please help with this question?

what type of bond is present in sulphur?

what type bond is present in barium chlorid?

How many moles are present in 4g of KOH??? ( K = 39u, H - 1u, 0 - 16u)?

For the function y= -2+5sin (π/12 (x-2)), what is the minimum value?

A ladder rests against the top of a perpendicular wall of a ...?

What is 0.116 with the 16 repeating as an fraction?

CAN SOMEONE PLEASE HELP ME WITH THIS CHEMISTRY QUESTION PLEASE???!!!?

10 points best answer, help?

Find the angle.?