胡雪8°

two properties common to Arrhenius acids?

1. You use an ice bath when adding nitric acid to sulfuric acid. Why?

求正解，教教我阿數學根號式的運算?

有不會的數學題目，求題目解法!!!?

What's the derivative of x^e^x?

If I mix 8 mL of 0.50 CH3COOH with 2 ml of 0.50 M NaCH3COO, how do I calculate the concentrations of acetic acid and sodium acetate...?

鹽橋如何溝通電路的問題?

請教化學大神有關酸鹼滴定的問題?

4點幾分的時候,分針與時針會夾角180度?求算式詳解?

朱佳以每公斤60元的價格買進花生20公斤，又以每公斤70元的價格買進腰果22公斤，其他成本支出150元。若朱佳將這些花生與腰果混合後以每台斤69元全部賣出，則朱佳賺或賠多少元?

what is 17 x 3/4?

Math Question. With full solution. Thanks?

. 在人類循環系統中下列血液的流向，何者是不正確的？ (1)大靜脈→左心房ˉ(2)右心房→右心室ˉ(3)左心室→大動脈ˉ(4)右心室→肺動脈。?

Concentration and pH?

甲有X元，甲的錢數比乙的一半多300元，若乙給甲200元後，兩人的錢數就一樣多，則甲、乙共有多少錢?

某次數學競試以100分為滿分，試題分為每題2分的選擇題和每題5分的填充題，已知選擇題比填充題多15題，則此次數學競試共有_______題。?

log2分之一(log16x)=2?

已知H2O與CO2之標準莫耳生成熱為a與b CH4之標準莫耳燃燒熱 為c 則CH4之標準莫耳生成熱為多少?

關於國一地理的問題?

硫酸鈉溶液的摩爾濃度?

單指元素"銀是銀白色固體"之類的算化學嗎?

下列何者不具有惰性氣體的電子組態？

年齡與手機號碼的秘密❗?

what is organic chemistry?

Imaginary number problem (help fast)?

4阿維在實驗室配置40C甲物質的飽和水容易 https://www.flickr.com/photos/101292575@N06/20792155084/in/dateposted-public/?

a block of mass 2kg rest on the floor of an elevtor. which is moving down with an acceleration g . then the apparent weight of the block is?

有兩個整數相差8,且都大於零,他們相乘結果是153,這兩個整數分別是多少?

Solve the following system of equations. y = -3x -6x - 3y = 6 a) (-3, 4) b) (6, -2) c) (2, -6)?

what is 15 diivided by0?

how many feet in a mile?

Physics Question?

How many electrons move past a fixed reference point every t = 2.90 ps if the current is i = 3.3 μA ?

cu+2agno3-- cu(no3)2+2ag how much silver can be made from 17 g of silver nitrate?

factor the trinomial completely: 14y^4 + 94y^3 - 28y^2?

propan-2-ol is MISCIBLE in water? and in cyclohexane? and what about water and cyclohexane together? thanks?

Examples of an acid salt?

What amount of heat (kJ) could be produced by burning 1 kg of ethanol?

Find the value of x when the number of views first exceeds 2 000 000 according to the exponential method.?

how many pounds in an ounce?

1 mega watt hydral power project produce how many units per hour?

Probability question?

1 mega watt plant generate howmany units per hour?

Factor the difference of squares / Reverse Foil help?

Probability?

What's the derivative of 27^cosx + 81^sinx ?

Suppose M is the midpoint of FG. Use the given info to find the missing measure or value. FM=5y+13, MG=5-3y, FG=?

高職化學參考書記載:固體分為~離子固體/分子固體/網狀固體/金屬固體! 那離子固體就是電解質嗎? 請板上各位化學達人賜教~謝謝!?

math help! r=log12(9) s= log12(23) t=log 9(23). rewrite the expression below in a form with no log of a product,quotient or power.?

Help with Math?