Which quantity of o2 contains exactly 3.01 x 10^23 molecules?

The following reaction is first order in N2O5: N2O5 (g) →NO3 (g) + NO2 (g) The rate constant for the reaction at a certain temperature is 0.053/s Calculate the rate of the reaction when [N2O5] = 5.1*10-2 M.

Which of the following will not reduce water pollution? A. Conserving water B. Using artificial fertilizers instead of composting C. Disposing of waste safely D. Using household products instead of chemicals

Because of bronze's high

Two methods of biotechnology used by scientists are described below. Process A: Inserted a pesticide gene into a soybean Process B: Used plants and microorganisms to create a new biofuel Which process is likely to be more advantageous in

A mineral must be in this state of matter

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?

According to the periodic table, which element has an atomic number of 40? a. u b. ca c. zr d. np

3. Which word best fits with the Earth's day and night cycle a. Revolution b. Rotation C Orbit d. Axis