In 450 BCE, Greek philosopher Democritus first thought of the existence

of tiny particles that compose everything around us. He named them

'atomos', meaning

A. Invisible

B. Particle

C. Indivisible

D. None of these

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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?

Which form of bonding holds cesium chloride (CsCl) together? a. hydrogen bonding b. covalent bonding c. metallic bonding d. ionic bonding

Which particles in atom could demonstrate that opposite charges attract

If a cell is dying because it lacks an inorganic substance that is important for nutrition, what does it need

If the pressure, volume, and temperature of a gas are known, which can most lik was the molar amount of the gas O the partial pressure of the gas O the standard temperature and pressure O the molar mass

Which of the following is a mixture A aluminum B BaSO3 C Milk D table salt

Which of the following quantum number combinations is not allowed in an atom? A. n = 2, l = 1, mr = - 1 B. n = 1, l = 1, m = 0 C. n = 8, l = 5, m = - 4 D. n = 6, l = 3, m = 2

13. Adding thermal energy to a gas at constant pressure will cause

A 3 ml volume of a solution containing an unknown concentration of hcl is added to 7 ml of water. it is then determined that the concentration of the hcl in the diluted solution is 630 mm. what was the concentration of hcl in the original solution?

How do you find the ph of water