What elements form ions with a charge of - 1?

Describe the energy transformation that occurs in a clock

A runner accelerates from 0 m/s to 3 m/s in 12 s. What was the acceleration?

What is the definition of substance in your own words.

If 255 g of water has 10.0 g of nacl dissolved into initially, how much nacl must be added in order to raise the mass percent of nacl by 10%

For the reaction of oxygen and nitrogen to form nitric oxide, consider the following thermodynamic dа ta: ΔH∘rxn 180.5 kJ/mol ΔS∘rxn 24.8 J / (mol⋅K) Calculate the temperature above which this reaction is spontaneous.

What is a mole ratio?

What type of reaction is represented by the following equation: C4H8 (g) + 602 (g) → 4CO2 (g) + 4H2O (g)

Explain how an ionic compound made up of charged particles can be electrically neutral

What is the outer electron configuration for tin

Calculate the energy in joules and calories required to heat 50.0g silver from 106c to 255c.