What is the definition of star

Setting of milk into curd is chemical changes. justify your answer

What occurs when an atom loses an electron? (1) The atom's radius decreases and the atom becomes a negative ion. (2) The atom's radius decreases and the atom becomes a positive ion. (3) The atom's radius increases and the atom becomes a negative ion.

What happens to the pressure of the gas in an inflated expandable ballon if the temperature is increased?

How many moles of nitrogen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol.

How much pv work is done in kilojoules for the reaction of 0.68 mol of h2 with 0.34 mol of o2 at atmospheric pressure if the volume change is - 4.1 l?

How is measuring the volume of liquids different than measuring the volume of regular-shaped solids?

Which of the following best describes the motion of the particles in a piece of steel?

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?