wanszeto

[匿名]

回覆: 5

2018-07-31 5:45 pm

Homework help :D Finding the definite integral?

[匿名]

回覆: 2

2018-07-31 4:37 pm

36. I’m facing East, I turned 100 Degrees in the clockwise direction and then 110 degrees in the anti-clockwis?

[匿名]

回覆: 4

2018-07-31 4:25 pm

Determine the probability of getting 2 heads, 1 tail from flipping a coin three times.?

[匿名]

回覆: 1

2018-07-31 12:51 pm

How much energy is required to heat 87.1 g acetone (molar mass = 58.08 g/mol) from a solid at -154.0°C to a liquid at -42.0°C?

[匿名]

回覆: 1

2018-07-31 11:16 am

how many moles are in gas sample occupying 0.816 L at 127mmHg and 22celcius ? answer and work plz!!?

[匿名]

回覆: 2

2018-07-30 11:36 pm

calculus homework problem?

[匿名]

回覆: 1

2018-07-30 1:42 pm

Which of the following molecules are ionic?

[匿名]

回覆: 4

2018-07-28 8:45 am

scientific name of bread?

[匿名]

回覆: 1

2018-07-27 11:00 pm

Solutions of sulfuric acid and lead (ll) acetate react to form solid lead (ll) sulfate and a solution of acetic acid.?

[匿名]

回覆: 3

2018-07-27 10:04 pm

設a，b為實數，若a-b=6，ab=3，求a五方+b五方=?

[匿名]

回覆: 3

2018-07-27 9:08 pm

小仁、小新合作一工程，8 日可完工。如小仁獨做 24 日可完 工，請問小新獨做幾日可完工? (1)12 (2)14 (3)15 (4)16 日。?

[匿名]

回覆: 3

2018-07-27 7:16 am

The relationship between pressure and moles, when volume and temperature of a gas are held constant, is: P/n = k. We could say then, that:?

[匿名]

回覆: 3

2018-07-27 3:42 pm

Calculating probability.?

[匿名]

回覆: 4

2018-07-25 12:28 pm

Will the solution of an equation such as x-3=9 be a variable or number? Explain.?

[匿名]

回覆: 3

2018-07-25 12:08 pm

Rewrite with only cosx and sinx: sin3x - cosx?

[匿名]

回覆: 3

2018-07-25 11:29 am

Geometric mean of 4 and 12?

[匿名]

回覆: 3

2018-07-25 11:14 am

Ideal gas law equation.. please help (think I understand but maybe not)?

[匿名]

回覆: 3

2018-07-25 8:53 am

HELP with geometry!!?

[匿名]

回覆: 8

2018-07-25 10:20 am

Area of a rectangle is n^2 -4n -5, where n is a positive number. If one side has length n+1, give the second side in terms of n. Working pls?

[匿名]

回覆: 2

2018-07-25 8:54 am

Chemistry Question on Thermochemistry?

[匿名]

回覆: 3

2018-07-25 8:19 am

Calculate the molar solubility of CaF2 in a 0.2890 M cesium fluoride, CsF solution.?

[匿名]

回覆: 2

2018-07-18 9:01 pm

is Celecoxib a acidic or basic drugs?

[匿名]

回覆: 1

2018-07-18 1:13 pm

The human body obtains 1164 kJ from a candy bar Of this energy were used to vaporize water at 100 ∘C,?

[匿名]

回覆: 1

2018-07-17 1:13 pm

A 2.00 L sample of N2(g) is heated from 250 °C to 500°C. What is the new volume?

[匿名]

回覆: 4

2018-07-17 10:02 am

Kindly help please.?

[匿名]

回覆: 2

2018-07-16 10:43 am

Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.250 M pyridine, C5H5N(aq) with 0.250 M HBr(aq):?

[匿名]

回覆: 1

2018-07-16 12:46 pm

Which of the following atoms will have the same electron configuration? I. N−3 II. O+2 III. F−1 IV. Li−1 V. Be+2?

[匿名]

回覆: 3

2018-07-15 5:42 pm

absolute value of ((1+2i)/(1-2i))^2 ?? please..?

[匿名]

回覆: 1

2018-07-15 1:52 pm

How many grams of tin are required to form 1.0 g of silver by the following reaction? 2 Ag+(aq) + Sn(s) → 2 Ag(s) + Sn2+(aq)?

[匿名]

回覆: 2

2018-07-15 1:58 pm

Help me name this molecule!?!?!?

[匿名]

回覆: 1

2018-07-15 6:37 am

Chem II help?

[匿名]

回覆: 2

2018-07-14 10:52 am

If anyone can help that'd be great. I'm not quite sure what the naming of this is Thanks.?

jschroep420

回覆: 1

2018-07-11 12:12 pm

Calculate the pH of a 0.250M H3PO4 solution. Ka1 = 7.5E-3, Ka2 = 6.3E-8, and Ka3 = 3.6E-3?

[匿名]

回覆: 2

2018-07-09 2:49 pm

Please help, thank you in advance?

[匿名]

回覆: 1

2018-07-09 2:21 pm

If the exterior angles or a convex octagon are x+15,3x-1,2x+10,2x+15,2x-20,3x-4,3x-11 and 6x.?

[匿名]

回覆: 7

2018-07-09 11:16 am

How do you factor (2x^3 -12x^2 +10x +12)/2x -4 ?

[匿名]

回覆: 1

2018-07-09 11:54 am

Chem help?

[匿名]

回覆: 1

2018-07-09 6:35 am

Consider the following species and rank them from most acidic (1) to least acidic (7): NaCl, CH3CH2NH2, HCl, HCN, C5H5NHCl, NaOH, NaF?

[匿名]

回覆: 2

2018-07-09 7:54 am

If we had 10.9 g of nitrogen and 2 g of hydrogen, how much nitrogen would remain if all the hydrogen was consumed?

[匿名]

回覆: 4

2018-07-09 9:17 am

When the characteristics or state (solid, liquid or gas) of a substance change but the chemical composition does not change it indicates?

[匿名]

回覆: 2

2018-07-08 6:32 pm

how many grams of cuso4 are needed to make 350 ml of a solution that contains 10.5 mg/ml of cu2+ ion?

[匿名]

回覆: 1

2018-07-08 6:34 pm

how many grams of cuso4 are needed to make 350 ml of a solution that contains 10.5 mg/ml of cu2+ ion?

[匿名]

回覆: 1

2018-07-08 2:55 pm

How many students take two subjects only?

[匿名]

回覆: 2

2018-07-08 4:21 pm

How did they get the value of pKa in this example?

[匿名]

回覆: 2

2018-07-05 12:15 am

Filter coffee contains caffeine at a concentration of 3.361x10^-3 mol dm^-3. What is the mass of caffeine in a 250ml mug of the coffee?

[匿名]

回覆: 3

2018-07-04 4:00 pm

Physic kinematic problem, please help!?

[匿名]

回覆: 4

2018-07-04 12:16 pm

Find the main equation of the line in the following cases 5 STARS?

[匿名]

回覆: 3

2018-07-03 10:21 am

Please answer. Thanks!?

[匿名]

回覆: 3

2018-07-03 1:44 am

Is removing an electron from lithium exothermic?

[匿名]

回覆: 3

2018-07-02 11:32 am

Write the total ionic and the net ionic equations for the following: 3 H2 (g) + 2 AuCl3 (aq) → 6 HCl (aq) + 2 Au (s)?