A sample contains 430 mg of mercury. How many significant figures are in the number?

A region in which there is a high probability of finding an electron is called a field. true or false

If an element contains 8 electrons how many electrons will be placed in the 2nd valence shell? 6 2 8 5 11

3. What is the difference between applied research and technological development?

Which of the following results from acid deposition? View Available Hint (s) Which of the following results from acid deposition? Chlorofluorocarbons are formed near the ground. Species diversity is increased.

Two carbon Adams can be joined together three types of covalent bonds which type is the strongest? Single covalent bond a triple covalent bond a double covalent bond

Complete and balance the molecular equation, including phases, for the reaction of aqueous ammonium bromide, nh4br, and aqueous lead (ii) acetate, pb (c2h3o2) 2.

A magnesium atom has 2 valence electrons in its third shell. Which is a TRUE statement about what happens when it forms an ion? A. It will be an anion. B. It will have more electrons than protons. C.

What scientific discoveries led to changes in Dalton's atomic theory?

What does berkelium react with

Classifying living things