讲一下这道题---**Extracted Content:** **Question Stem:** 1. (2025·江西省中考真题)奔赴星辰大海，化学赋能未来。 **Sub-questions and Related Information:** **(1) "天和"驻空:** * **Problem Description:** 天和核心舱内“人造空气”中能供给呼吸的气体是______。航天员的食物有牛肉、蔬菜、米饭等，其中富含蛋白质的是______。 * **Translation:** "Tianhe" Stay in Space: The gas that can be supplied for breathing in the "artificial air" in the Tianhe core module is ______. Astronauts' food includes beef, vegetables, rice, etc., among which rich in protein is ______. **(2) "奋斗者"探海:** * **Problem Description:** “奋斗者”号使用了钛合金和锂电池，钛元素在元素周期表中的信息如图，钛原子的质子数是______；工业上制锂的一种方法是：2Al + 3Li₂O == (高温) == 6Li + X, X的化学式是______。 * **Translation:** "Fendouzhe" explores the sea: The "Fendouzhe" submersible used titanium alloy and lithium batteries. The information about the titanium element in the periodic table is shown in the figure. The number of protons in a titanium atom is ______; One industrial method for producing lithium is: 2Al + 3Li₂O == (High Temperature) == 6Li + X. The chemical formula of X is ______. * **Mathematical Formulas/Chemical Equations:** 2Al + 3Li₂O == (高温) == 6Li + X * **Chart/Diagram Description:** * **Type:** Element information box (from the periodic table). * **Main Elements:** * Top-left number: 22 (Atomic number) * Top-right symbol: Ti (Element symbol for Titanium) * Middle text: 钛 (Chinese name for Titanium) * Bottom number: 47.87 (Relative atomic mass) **(3) "梦想"号入地:** * **Problem Description:** “梦想”号的钻探能力堪称全球顶尖。碳化硅(SiC)钻头可用于深海钻探，SiC中碳元素为-4价，则硅的化合价是______价。 * **Translation:** "Mengxiang" goes underground: The drilling capability of the "Mengxiang" submersible is world-class. Silicon carbide (SiC) drill bits can be used for deep-sea drilling. In SiC, the carbon element has a valence of -4, so the valence of silicon is ______ valence.