A hydrate of CoCl2with mass of 6.00g heated strongly. After cooling, the mass of anhydrate is 3.27g. How many grams of H2O were lost from hydrate?

Which best describes two ways in which hydrogen is involved in photosynthesis? A) 1 - Hydrogen is stored in leaves of plants. 2 - Hydrogen combines with carbon dioxide to make glucose. B) 1 - Hydrogen is stored in leaves of plants.

Each equation is incorrect. find the errors, then rewrite and balance each equation. cl2 + nai → nacl2 + i nh3 → n + h2 na + o2 → nao2

Complete the chart. atomic number: 10. 1s 2s 2p 3s 3p 4s 3d 4p 5s

The rate of a chemical reaction can be measured as the rate of appearance of any of the products or as the rate of disappearance of any of the reactants. These relative rates of reaction are related through the stoichiometry of the overall reaction.

How do polar jet streams affect tempature and percipitation in north america

What is the mass (in grams) of 8.45 x 1023 molecules of dextrose: C6H12O6 (Mw. 180.16 g/mol) ?

How do the number and kind of atoms in the reactants compare to the number and kind of atoms in the products

Scientists conduct experiments to collect evidence. Which of the following is the best definition of the word experiment as used by scientists?

The compound HCI is an example of a (n) A. covalent compound B. ionic compound C. element D. salt

Is the degree of highness or lowness of sound