a目前常用的熔盐是一种三元无机盐类[8]:由53%KNO3、40%NaNO2和7%NaNO3熔化后形成的熔体混合物,属于危险类物品。熔盐与导热油相比,在相近的压力下可获得更高的使用温度(350~600℃),且有较好的热稳定性,其导热系数是其他有机热载体的两倍,而且温度在600℃以下时,几乎不产生蒸汽,这是熔盐得性能优于导热油得所在...
Would HF and CH3NH2 generate a salt derived from a weak acid and a weak base? Explain. How is the strength of a weak acid or a weak base determined? Explain how the pH of the salt of a weak acid may be determined. Explain the difference between a strong acid and a weak acid, us...
Classify the salt is acidic, basic, or neutral. NaClO pH: pH of sodium hypochlorite is 11. It has relative density of 1.1. Aa a bleaching agent for domestic use it usually contains 5% sodium hypochlorite. Answer and Explanation: Learn more about this topic: ...
B. Neutral. C. Critical. D. Positive. 免费查看参考答案及解析 题目: 如图,在梯形ABCD中,AB∥CD,∠BCD=120°,四边形ACFE为矩形,CF⊥平面ABCD,AD=CD=BC=CF,点M是线段EF的中点. (1)求证:EF⊥平面BCF; (2)求平面MAB与平面FCB所成的锐二面角的余弦值. 免费查看参考答案及解析 题目: 如图,四边形...
A bottle of acid solution is labeled 3 M HNO_3. What are the substances that are actually present in the solution? Are any HNO_3 molecules present? Why or why not? Is a solution of the salt Al(NO3)3 acidic, ba...
acommunication intensive 通信密集[translate] a只要你要、只要我有 倾我所能、尽我所有 So long as you want, so long as I have Leans me to be able, I all[translate] aAt present the commonly used fused salt is one kind of three Yuan inorganic salts (8): After 53%KNO3, 40%NaNO2 and 7%...
Which of the following solutions is a weak acid? a. 0.1 M HCl b. 0.1 M HC2H3O2 c. 0.1 M NaOH d. 0.1 M NH3 Properties of Weak Acids: Weak acids are defined by a low extent of ionization when dissolved in water. The lower ion concentrations ...
a buffer. When [A - ] = [HA], it follows that Ka = [H + ] and pH = pKa. Acidic Buffer Example: Acetic acid (HC2H3O2), sodium acetate (NaC2H3O2) NaC2H3O2 is a soluble salt that dissolves in water to give Na + and C2H3O2 - ions. Na + ions are neutral spectator ions, ...
What is a neutralization reaction? (a) A reaction that involves neutral reactants. (b) A reaction in which the reactants are a salt and water. (c) A reaction in which the product is either acidic or b Which salt would produce an acidic solution? a. NaCl b. NH4Cl c. KNO3 ...
Classify each salt as acidic salt, basic salt, or neutral salt. 1) KNO3 2) NaClO 3)NH4Cl Which is NOT a characteristic of acids? A. tastes bitter B. turns litmus red C. reacts with bases to form salts D. reacts with active metals to form H2 ga...