micatkie

Need solution for this?

Solve and explain this exponential equation, please?? 2^((x+1)/x) * (1/2)^x+1= 1 The results are -1 and 1.?

What is the equation of the line that passes through the point (3,0) and is perpendicular to the line 2x-y=5?

33 grams of iron metal are dissolved in 50 mL if 6 M hydrochloric acid according to the following reaction:?

Chemistry homework question help?

Chemistry Homework Help!!?

Equilibrium constant help! Thanks?

In 2.76g of AgCO3 are strongly heated find the mass of Ag formed?

How many miles of HCl would it take to make 50 mL of .1 M solution?

Chemistry calculation help?

x[3(x+1)(x-3)+2{x+4(x-7)}]?

A current of 5.48 A is passed through a Cr(NO3)2 solution for 1.50 hours. How much chromium is plated out?

What is the balanced redox equation for hydrogen and oxygen making water?

Chemistry Help (Molarity)?

If you have a 2.50 mole sample of a substance, how many representative particles does this represent?

Write the formula for a complex formed between Zn2 and OH–, with a coordination number of 4?

number of moles of nitrogen dioxide (NO2) produced when 3 moles of oxygen are produced in the decomposition of nitric acid by light?
?

what is eelctronrgativity of an element?

How are the reaction rates of the chemical reactions in batteries affected by temperature?

how many grams of snf2 can be produced from 6.55 moles of hf?

Find the probability with 5-card hands from a deck of 52 cards that contains.. A) 3 aces and 2 kings B) 3 queens and 2 spades?

2CO(g) + O2(g) → 2CO2(g) ΔHo = -566 kJ Determine ΔHo in kJ for the complete combustion of 25 kg of carbon monoxide.?

half equation question?

Calc 2 Problem. I need urgent help! Find the slope of the tangent line to the graph of the polar equation?

若北半球陸地與海洋面積之比為5：9，又南半球陸地與海洋面積之比為3：25，則地球表面之陸地面積和海洋面積之比為多少？

Pressure help for Physics!?

If 4.91 g of Ar are added to 1.47 atm of He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of the resulting gaseous mixture?

I'm confused on my chem work?

can someone help me undo this square root: c^2 = 169?

下列何者為(x-y)²-8(y-x)+12的因式? (A)x-y-2 (B)x+y-6 (C)x+y+6 (D)x-y+6?

12.4 x 10^40 molecules of butane combust w 12.4L of O2 at stp find g of H2O produced?

i need help with this algebra II question solve by substitution 4x=8y 2x +5y =27?

power problem physics?

2條新高中化學 - 氧化還原問題？PLS HELP?

(x-0.4)^2?

What is the average oxidation state of vanadium in VO 1.14?

Need help calculating temp pressure and volume?

If -2 and 3 are solutions of the quadratic equation x^2 + bx +c = 0, then what are the values of b and c?

Prove the identity: (sinx-cosx+1)/(sinx+cosx-1)=(sinx+1)/cosx?

I need help on a math problem. Please tell me answer and explain?

可以幫忙解題一下嗎?感恩!!?

degf(x)>=4,若以x^-1除f(x)得餘式為3x+1,以x^+1除f(x)得餘式為2x-3,則以(x^-1)(x^+1)除f(x)得餘式為?

大樂透及威力彩中奬率公式怎麼算? 大樂透有01~49號碼. 投注任選6個號碼.開7個號碼 中3個號碼 奬金…..400元-----1.] 這一項中奬率及其公式? 中6個號碼奬金…..頭奬.----- 2.] 這一項中奬率及其公式?

多項式問題，請問如何解題?

暖暖包裡的鐵粉經搓揉後產生熱屬於什麼反應?

103中國醫 寒轉化學 的題目 1.鋁金屬與過氯酸鋁的混合物可作為燃料，其反應生成物為氧化鋁.氯化鋁.一氧化氫.水，請問每公斤的鋁需多少克的過氯酸鋁才能完全反應？ 求列出反應的化學式~~~?

甲醛經雙氧水氧化後的產物是CO2跟水，請問戊二醛是不是也跟甲醛一樣經雙氧水氧化後會產出CO2跟水?

[急]請問辛烷值破百為什麼不能加在汽油裡？ 明天就要交的化學作業，懇請大大幫幫忙><；?

求解!! 要過程 取200ml池水做樣本，發現樣本中存在H,Na,Zn,OH,NO3與H₂O六種離子，其中H和OH的數量很少可忽略，若離子個數比Na:NO=2:7，則Zn:Na?

A、B兩液體混合成理想溶液，50度時，A、B兩純液體的飽和蒸氣壓依序為300mmHg及100mmHg。今於50度時，某A、B混合所成之理想溶液，液面上之蒸氣組成中A的莫耳分率＝0.5，則此溶液之蒸氣壓為？ mmHg (A)120 (B)150 (C)200 (D)240 mmHg?