How many electrons does the element Zn have?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon

How many electrons are contained in an ion formed from an atom of na?

Which of the following most likely happens during a physical change? A. An irreversible process takes place. B. Substance changes its form but not its molecular composition. C. New atoms are introduced in the molecules of the substance. D.

Which of these represents a synthesis reaction? A. AgNO3 + HCl - > AgCl + HNO3 B. Zn + 2HCl - > ZnCl2 + H2 C. N2 + 3H2 - > 2NH3 D. 2KClO3 - > 2KCl + 3O2

Whose idea was it to classify living things?

What is the nearest noble gas in sulfur

The word atom comes from a Greek word that means

What is the rate of acceleration of 2000 kilogram truck if a force of 4200 n is used to make it start moving forward

For the chemical reaction H2 + CO2 → H2O + CO, the energy contained in the reactants is 394 kJ, and the energy contained in the products is 352 kJ, assuming 1 mol of each substance is present. Which of the following statements is true? A.

Why is particle size important in a heterogeneous catalyst