Why sodium chloride is a neutral compound even though it is made up of ions that have positive and negative charges?

Which factor does not influence the rate of a chemical reaction

It is possible for a substance to exist in all forms of matter give an example

26.6 mL of 2.50 M stock solution of sucrose is diluted to 50.0 mL. A 16.0 mL sample of the resulting solution is then diluted to 45.0 mL. A 20.0 mL sample of this solution is then diluted to 75.0 mL.

Solve each problem give your answer to the correct number of significant figures and in scientific notation a. 8.73 meters • 2.22meters b. 8432 meters divided by 12.5 c. 35.2 seconds • 1minute/60seonds

You place a balloon in a closed vacuum chamber at standard temperature and pressure (STP). You decrease the pressure in the chamber by half but keep the temperature constant. What happens to the volume of the balloon? a. It stays the same volume. b.

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