Describe a way to separate a mixture of sand and salt.

A chemical reaction with an initial quantity of 1.35 moles of gas is performed in a 4.50-L flask at 24.7°C and under 1.07 atm of pressure. After the reaction is complete the final temperature is 55.2°C with a pressure of 2.92 atm.

Describe the three steps of solution formation. be sure to include the details regarding the dissolving of the substance

If 32.78 ml of naoh solution is required to neutralize 20.00 ml 0f 0.2500 m of sulfuric acid, h2so4 (aq), what is the concentration of the naoh solution? the balanced equation is: 2naoh (aq) + h2so4 (aq) → na2so4 (aq) + 2h2o (l)

A flask contains oxygen, carbon dioxide, and nitrogen gases. The partial pressures of each are 11.4 atm, 5.6 atm, and 8.7 atm, respectively. What is the total pressure in the flask in atm?

How many carbon atoms are present in 0.52 moles of C2H6O?

Which of the following polyatomic ions will form an ionic compound with two sodium ions? CO32- HCO31- NO21- NO31-

What is hybridisation

2. Seorang ibu perlu menyediakan satu hidangan kari daging dengan cepat untuk anaknya yang lapar. Langkah manakah yang berikut dapat membantu dia mencapai tujuan ini? (CL01, C2) A. Menggunakan periuk yang lebih besar B. Menambah banyak serbuk kari C.

Which of the following statements is not true? Question 4 options: When atoms have similar electronegativities, electrons are shared equally When electrons are shared equally, the molecule is called a nonpolar molecule.

Write the isotope symbol for two isotopes of the same element. What makes the isotopes different? How are they similar?