Kw at 0K is 2.00E-01. What is the [H3O+]?

When I balance it out with 2,15,10 and 10. Does not work I'm confused pls help.

5. Balance the following equation: The combustion of Butane Gas: C4H10  +    O2    --------->        CO2    +    H2O (water) answers are listed in order - 1st coefficient, 2nd coeficient, etc. and so on.     Group of answer choices a) 1,2,2,5 b) 2,6,4,5 c) 2,13,8,10 d) 1,6,4,5

Calculate the E0 for the reaction between S2- and Fe3+ that yields SO42- and Fe2+.This was all I was given. I do not know where to start, what I need, or what I need to calculate first. There are no other instructions or parts to this question. I'm at a loss, where do I begin?

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Using the information thus far in this chapter, explain why battery-powered electronics perform poorly in low temperatures.

Although the gas used in an oxyacetylene torch (Figure 5.7) is essentially pure acetylene, the heat produced by combustion of one mole of acetylene in such a torch is likely not equal to the enthalpy of combustion of acetylene listed in Table 5.2. Considering the conditions for which the tabulated data are reported, suggest an explanation.

Your =- Fren C Cyr Savv Savv AF ST savvasrealize.com STRY-4(M-F)-23-24 Chmark 3-D Assessment 1: Storylines 1 and 2 Read the passage and answer the next 2 questions. When the element zinc (Zn) is added to hydrochloric acid (HCI), a single replacement reaction occurs. It produces molecular hydrogen (H2) and zinc chloride (ZnCl2). Zn(s)+2 HCI(1) H2(g) + ZnCl2(s) A chemist combines 1.03 grams of zinc with an excess amount of hydrochloric acid in an Erlenmeyer flask. A visible reaction occurs with the formation of bubbles and color change. When a burning wooden splint is inserted into the flask, a distinct popping noise is heard, indicating hydrogen gas was produced. Periodic Table If all of the zinc reacts, what is the total mass of zinc chloride prod should include three significant figures. The total mass of zinc chloride (ZnCl2) formed is Review Progress ← 7 Desk 2 C 54 # 3 @ 12 W e r B DELL Question 37 of 40 ° ° * 25 % 66 A & 27 * ( 8 6 t y u i O O

Determine the type of reaction and record its classification

Hello, please answer the question. Please show all your work. Thank you.