胡雪8°

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回覆: 3

2021-02-22 12:33 pm

Free Fall?

[匿名]

回覆: 3

2020-10-06 3:25 pm

given that log5(y)=8 find the value of log5(125y)?

[匿名]

回覆: 1

2020-10-05 10:08 pm

Ap Chemistry Gas law help?

[匿名]

回覆: 1

2020-10-05 4:40 pm

quick chem Q's - easy points !?

[匿名]

回覆: 2

2020-09-26 10:47 pm

Help give an example of a linear equation that is parallel to the y axis ?

[匿名]

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2020-09-26 9:52 am

what is the structural formula for  3-propoxyheptane?

[匿名]

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2020-09-26 11:14 pm

what is the LCM of 6 and 18?

[匿名]

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2020-09-21 10:59 pm

6.3 liters of sulfur vapor, S8(g), at 655°C and 8.87 atm is burned in excess pure oxygen gas to give sulfur dioxide gas measured at the ...?

[匿名]

回覆: 4

2020-09-21 9:19 pm

PLEASE HELP ASAP?

[匿名]

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2020-09-21 8:38 pm

If 5.84 L of nitrogen gas and 24.96 L of hydrogen gas were allowed to react, how many liters of ammonia gas could form? ?

[匿名]

回覆: 1

2020-09-15 11:28 pm

Question from chemistry Acids and Bases?

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回覆: 1

2020-09-15 4:40 pm

Kindly solve this question asap  Reading of the spring scale in figure is-?

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2020-09-15 12:59 pm

Partial pressure ?

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2020-09-14 11:04 pm

The air contains about 21% O2 gas. If the atmospheric pressure is 89 kPa, what is the partial pressure of the O2 gas?

[匿名]

回覆: 2

2020-09-10 12:57 am

Help with chemistry questions ?

[匿名]

回覆: 1

2020-09-09 11:09 pm

Find f'(-3) if 5x(f(x))^3+3x^3f(x)=96 and f(-3)=-1?

[匿名]

回覆: 2

2020-09-07 5:53 pm

Help please?

[匿名]

回覆: 1

2020-09-07 2:08 pm

Chemistry Dilution?

[匿名]

回覆: 7

2020-09-07 2:34 pm

Write X^2-6x+1 in the form (x+a)^2+b?

[匿名]

回覆: 1

2020-09-02 12:27 am

chemistry question?

[匿名]

回覆: 1

2020-09-01 11:55 pm

Is NaCl an ionic bond or covalent bond?

[匿名]

回覆: 2

2020-09-01 8:15 pm

O is the centre of the circle with radius 10cm.AB and PQ?

[匿名]

回覆: 2

2020-08-26 10:51 pm

Calculating pH of buffers?

[匿名]

回覆: 1

2020-08-26 10:21 pm

PHYSICS HELP ASAP PROJECTILE MOTION PLEASE!?!?!?!?

[匿名]

回覆: 1

2020-08-26 7:30 pm

Write the Taylor series for ?

[匿名]

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2020-05-20 2:50 pm

Given the reaction:Al(s)+3Ag+ --> Al3+ +3Ag(s) Based on Reference Table Adv-10 what is the potential (E)^0 for the overall reaction?

[匿名]

回覆: 1

2020-05-19 9:30 pm

4. If you mix 20.0 mL of a 3.20M NaOH solution with 35.0 mL of a 5.80M NaOH solution, what is the molarity of the final solution?  ?

[匿名]

回覆: 1

2020-05-19 9:33 pm

 calculate the mass of sodium hydroxide?

[匿名]

回覆: 1

2020-05-08 10:38 pm

Chem Help?

[匿名]

回覆: 1

2020-05-08 10:37 pm

What are the oxidation states of the elements?

[匿名]

回覆: 1

2020-05-08 10:25 pm

Calculate the pH of a buffer solution?

[匿名]

回覆: 1

2020-05-08 2:19 pm

Please Help!! (sinx-cosx+1) / (sinx+cosx-1) = (sinx+1) / (cosx )?

[匿名]

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2020-05-08 2:09 pm

Pleaseeeee help! Prove that: sinx-cosx+1/sinx+cosx-1 = sinx+1/cosx?

[匿名]

回覆: 1

2020-04-27 12:17 pm

Please help chem pic?

[匿名]

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2020-04-27 12:20 pm

chem help?

[匿名]

回覆: 1

2020-04-27 2:35 pm

Chm, pH question?

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2020-04-15 3:09 pm

225 sin theta cos theta =100. Simplify this.?

[匿名]

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2020-04-15 2:47 pm

pls help asap i need this in 30 mins pls heeeeeellllpppp?

[匿名]

回覆: 1

2020-04-15 2:03 pm

Determine f and g such that h(x) is f(g(x))?

[匿名]

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2020-04-11 9:24 pm

Calculate ΔS° for the dissociation of dinitrogen tetraoxide at 25°C?

[匿名]

回覆: 2

2020-04-11 10:24 pm

Chemistry Naming Coordination Compound Help?

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2020-04-11 8:45 am

Need help with probability question(C)?

[匿名]

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2020-04-07 1:26 am

If triplicate absorbance readings of 0.419, 0.430, and 0.416 are recorded, what is the average %T for this solution?

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2020-04-07 1:11 am

Molar solubility help?

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2020-04-07 1:00 am

Can the following reaction be classified as a redox reaction? 2NaOH(aq) + H2SO4(aq) ----> Na2SO4(aq) + 2H2O(l)?

[匿名]

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2020-03-29 6:07 pm

Can you die Instantly if you drink heavy water like D2O?

[匿名]

回覆: 1

2019-04-09 3:49 pm

What is the redox reaction?

[匿名]

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2019-04-03 9:04 pm

Is HCl(aq) + NaOH(aq) = H20(l) + NaCl(aq) a redox reaction ? if yes show how the oxidation states change?

[匿名]

回覆: 1

2019-03-30 1:39 pm

energy photon emitted when an electronic a hydrogen atom undergoes transition from n=2, n=3?

[匿名]

回覆: 3

2019-03-27 2:13 am

who can help me with this?