A sodium atom loses one electron. Which of the following is the correct symbol for the sodium cation? Na - Na + Na+2 Na+3

What is the difference between atomic mass and number?

Which substance has vibrating particles in fixed positions? Ca (S) or CaCl2 (aq)

What is the wavelength of 2.18*1016 hz wave?

Fruit salad is an example of what? Heterogeneous Mixture Homogeneous Mixture Compound Element

What is the scientific explanation of why we see stars at different times of the day and why are stars bigger than they appear to be?

Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g.

Where the single machos?

A reaction will be spontaneous only at low temperatures if both ΔH and ΔS are negative. For a reaction in which ΔH = - 320.1 kJ/mol and ΔS = - 86.00 J/K · mol. Determine the temperature (in °C) below which the reaction is spontaneous.

Is it possible for a balloon with an initial internal pressure equal to 250.0 kPa to naturally expand to four times its initial volume when the temperature remains constant and the atmospheric pressure is 101.3 kPa?

How many atoms of gold (Au) are present in a sample of 2.5 mol Au? A. 1.5 * 1024 atoms Au B. 1.5 * 1023 atoms Au C. 4.2 * 1024 atoms Au D. 4.2 * 1023 atoms Au