wanszeto

[匿名]

回覆: 2

2017-09-26 4:06 pm

Calculating the value of x in the compound CuSO4xH20 . The compound is hydrous copper sulphate crystals .?

[匿名]

回覆: 1

2017-09-26 11:13 am

What is the empirical formula of the compound?

[匿名]

回覆: 2

2017-09-25 9:04 pm

A platinum ring is composed of 2.65 × 1023 atoms. Calculate the mass of the ring in grams.?

[匿名]

回覆: 3

2017-09-25 2:35 pm

If you roll 1 six sided die 5 times, what is the probability of getting at least 1 even number?

[匿名]

回覆: 2

2017-09-25 12:31 am

Impurity Percentage?

[匿名]

回覆: 1

2017-09-24 7:57 pm

What is the concentration of of Cr (MM=51.9962 g/mol) in ppm in the 250.0 mL flask?

[匿名]

回覆: 3

2017-09-24 7:23 pm

How many grams of water are evaporated by heating 50g of copper II sulfate penta hydrate ?

[匿名]

回覆: 1

2017-09-20 1:42 pm

How many protons, electrons, and electrons are in the ion 129Te2-?

[匿名]

回覆: 2

2017-09-19 4:28 pm

Redox Net Ionic Equation Help?

[匿名]

回覆: 2

2017-09-15 2:26 pm

For 0.50M H2SO3, calculate A) [H+] B) [HSO3-] C) [SO3^2-] D) [H2SO3] K1 for H2SO3 = 1.5 x 10^-2 K2 = 1.0 x 10^-7?

[匿名]

回覆: 4

2017-09-13 10:13 am

In a simple series circuit, using Ohms law, with a known current of 5 amps, and a resistive load of 30 watts, what is the voltage drop?

[匿名]

回覆: 3

2017-09-12 11:44 pm

Inverse function problem?

[匿名]

回覆: 3

2017-09-12 7:02 pm

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

[匿名]

回覆: 2

2017-09-11 10:55 am

Lim x--->2 -4x+5 / x^2-4x+4?

[匿名]

回覆: 12

2017-09-04 6:37 pm

How would you EXPLAIN 2a x 3a =?

[匿名]

回覆: 2

2017-09-04 12:20 pm

Chemistry help?

[匿名]

回覆: 4

2017-09-02 11:15 pm

Express (16+32x)¾ in the form a(1+bx)¾?

[匿名]

回覆: 2

2017-09-01 11:06 pm

What are the directions of velocity and acceleration when a constant mass moves to the right while it is being pushed to the left?

[匿名]

回覆: 1

2017-08-30 4:29 pm

chemistry help please?

[匿名]

回覆: 3

2017-08-30 1:21 pm

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

[匿名]

回覆: 2

2017-08-30 9:21 am

If water is added to 28.43mL of a 12.63M Ca(NO3)2solution to make150mL of solution, then what is the final concentration of calcium nitrate?

[匿名]

回覆: 2

2017-08-28 4:10 pm

An unknown compound has a molecular formula?

[匿名]

回覆: 2

2017-08-28 12:28 am

How do you find the density of a metal?

[匿名]

回覆: 5

2017-08-26 9:15 pm

Formula for compound containing ions ca2+ and Br-?

[匿名]

回覆: 1

2017-08-24 1:23 pm

chemistry help please?

[匿名]

回覆: 2

2017-08-23 12:27 pm

What's the value of 57,281 joules in Btu?

[匿名]

回覆: 7

2017-08-22 11:21 pm

5/x+4/5=1?

[匿名]

回覆: 3

2017-08-20 11:52 pm

Find Each Difference? A) 5-15 B) -13-7 C) -19-7 D) 36-(-12) E) -29-(-11) F) -7-(-5)?

[匿名]

回覆: 3

2017-08-20 5:17 pm

when metal combine to acid what will it form?

[匿名]

回覆: 6

2017-08-20 1:19 pm

math. trigonometry.?

[匿名]

回覆: 6

2017-08-20 1:01 pm

If the circumference of a circle is 69.124mm. Find the area of the circle ,correct to 1 decimal place. (Take 3.142)?

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回覆: 1

2017-08-19 2:18 pm

Discrete random variables probability question in description.?

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回覆: 3

2017-08-18 1:49 pm

name this compound using IUPAC system?

[匿名]

回覆: 3

2017-08-16 11:54 pm

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

[匿名]

回覆: 2

2017-08-16 1:51 pm

Maths limits?

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回覆: 4

2017-08-16 10:58 am

How do I get the simplified sq root of 45?

[匿名]

回覆: 2

2017-08-16 12:10 am

what is the oxidation state of Co atom in [Co(DMH)2ClPy]?

[匿名]

回覆: 2

2017-08-15 11:38 pm

Which statements are true based on the diagram? Check all that apply.?

[匿名]

回覆: 1

2017-08-11 4:28 pm

Can someone please help me with these 2 chemistry questions?

[匿名]

回覆: 2

2017-08-10 1:02 am

Chemistry, limiting reactants?

[匿名]

回覆: 10

2017-08-09 3:11 pm

Ajay completed 2/7th of a piece of work in 14 days. How many days will he take to complete the remaining work.?

[匿名]

回覆: 1

2017-08-09 10:03 am

what hex:EtoAc solvent system is most/least polar?

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回覆: 2

2017-08-08 8:42 pm

Calculate the standard Gibb's energy and the equilibrium constant of the cell for the following reaction?

[匿名]

回覆: 1

2017-08-08 12:55 pm

Calculate the [OH–] if the hydrogen ion concentration is 6.75 x 10–3 M.?

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回覆: 4

2017-08-04 6:31 pm

PLEASE HELP ME WITH THIS URGENT MATHS QUESTION I NEED HELP AND IM SO STUCK AHHHH?

[匿名]

回覆: 2

2017-08-03 11:36 pm

Is sulphur isotope??

[匿名]

回覆: 2

2017-07-31 1:33 pm

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

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回覆: 4

2017-07-28 10:20 pm

Math Word Problem?

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回覆: 6

2017-07-26 5:25 pm

if gravity is 9.8 m/sec2, how far would you fall in a tenth of a second? Since you have to accelerate from zero it can't possibly be 0.98m?

[匿名]

回覆: 1

2017-07-26 2:02 am

what are te 2 bronsted-lowry bases in the equilibrium abovehso3 + h2po4 so3 2 + h3po4?