Calcium metal (Ca) can be produced by passing an electric current through molten calcium chloride (CaCl2). Chlorine gas (Cl2) is also formed. What is the balanced equation for this reaction?

In balancing chemical equations, what are the rules concerning coefficients and subscripts?

Due to the low specific heat capacity of water the temperature of water changes much more quickly than the temperature of land.

9. How many grams of potassium sulfate are needed to make 250 mL of a 0.150 M potassium sulfate solution?

How many grams of sucrose (C12H22O11) are in 1.55 L of 0.758 M sucrose solution?

What are all examples of biotic factors running log, stream water, dead leaves, bacteria, soil

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