戇戇居士

Molar volume experiment with Mg ad HCl?

Help with this chemistry reaction shift question?

In reaction A(aq)+B(aq)-->C(aq), where will the reaction shift if water is added and the concentrations are decreased? Will there be a shift?

How do I solve this math problem?

Help with chem homework!!!?

Hello again! Can you people please help me in this math question?

What is the coefficient in 4 Al2O3?

What is the IUPAC name for Acetaminophen?

Simplify -3p 3 + 5p + (-2p 2) + (-4) - 12p + 5 - (-8p 3). Select the answer in descending powers of p.?

The reaction for the formation of hydrogen iodide does not go to completion but reaches equilibrium: H2 + I2 = 2HI?

Can -4 over -5 be written as 4 over 5 (for a y=mx +c gradient question?

Ammonia fountain?

chem problem?

Projectile Motion - What's the Range(R)?

19 mLs of neutralizer to neutralize 100 mLs of acid lake water, if we needed to neutralize 50 liters of drinking water, how many grams ?

What is a dipole??

What is the balanced net ionic equation between HCl and LiOH?

1) Find the slope of the tangent line to the curve 6sin(x)+6cos(y)−4sin(x)cos(y)+x=3π at the point (3π,3π/2).?

What is the inverse of (2x^9)+3?

Chemistry?

kick a ball of the roof of your house.It rolls off at a velocity of 12m/s.The roof is 21m high.How long does it take the ball to hit ground?

If a set of data has 81 values with a variance of 26.0, then the standard deviation is _________. a.) 2.9 b.) 0.6 c.)0.3 d.) 5.1?

How many g of ethanol should made from 60 g of glucose?

How do I solve them? Please someone teach me! 6x^8+9x^7+33x^5 3√13x+16√13x (7x^2 y^6 z^9)(5x^10y^7)?

How many formula units of baking soda (sodium bicarbonate) are in 2.30 tsp? (1 tsp ≈ 7.50 g NaHCO3)?

Help with combustion analysis?

chemistry question?

Is p-cyclohexylnitrobenzene the same as p-nitrocyclohexylbenzene? does it matter how its written? Chemistry help?

You mix 125 mL of 0.180 M with 50.0 mL of 0.450 M in a coffee-cup calorimeter, and the temperature of both solutions rises from 21.80 °C b?

Maths word problems?

what is the final ph of solution by mixing 100ml of 0.05m acetate acid and 100ml of 0.1m sodium acetate ?

A compound is found to contain 15.94 percent boron and 84.06 percent fluorine by mass.?

How many O2 molecules are needed to react with 7.06 g of S? Express your answer numerically in units of molecules.?

70 kg man on earth. If earth gravity is doubled what is his weight?

Ionic, Covalent network, Covalent discrete molecular, and metallic - Place ABCD into the approproate category?

what is a mixture of water containing undissolved particles that are so small that they will not settle out of solution?

is 1/x-y the same thing as 1/x - 1/y?

Chemical Equlibrium?

Which one of the following pairs of compounds could NOT be used to form a pH buffer solution in water?

Please help with the following differentiation. If y=sec^2(x) show that dy/dx =2y (sqrt (y-1))?

Help with this trig question?

remainder when 2 to the power of 220 is divided by 7. Please show simple step by step working that a twelve year old would understand,thanks?

Algebra help?

Help with science homework please!!?

Which of the following is TRUE of hydrophobic molecules?

Solve 4x (2x+5) ^3 (2x-1) ^1/3=6x (2x+5)^3 (2x-1) ^2/3?

What's the proper technique of converting 11 + 6sqrt(2) to the form [a+sqrt(b)]^2 ?

Why does diatomic molecules (such as H2 or O2) have a heat of formation of zero?

A solution has [OH−][OH−]= 1.5×10−2 M . Use the ion product constant of water Kw=[H3O+][OH−] to find the [H3O+] of the solution.?

could you help me with my Chemistry?