What's the answer to this?

(2.8 x 10^4) (5.05 x 10^-6)

Which of the following would not have the same number of valence electrons as the others? boron aluminum gallium selenium

in chlorine gas, two chlorine atoms join to form a Cl2 (chlorine 2) molecule. How many pairs of valence electrons do the atoms share? What type of covalent bond is formed?

Which is a property of acids in aqueous solutions? They feel soapy. They taste bitter. They increase the concentration of H + ions. They decrease the concentration of H + ions.

a solution of household vinegar is to be analyzed. A pipet is used to measure out 10 ml of the vinegar which is placed in a 250ml volumetric flask.

If 35.8 g Mg react with 82.3 g HCl according to the reaction below, how many grams of hydrogen gas will produced, and how many grams of the excess reactant will be left over? Unbalanced equation: Mg + HCI - > MgCl2 + H2

Does pressure decrease when a gas is removed

This is the ability of matter to change into a different substance.

How can I write ecology in my own words for a definition

The amount of time it takes for one-half of the original amount of an isotope to decay is known as its

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.