Which compound contains both ionic and covalent

bonds?

(1) CaCO3 (3) MgF2

(2) PCl3 (4) CH2O

What element's valence electrons are located in 5s25p5? A. Tc B. I C. Sb D. Sm

Sterling silver is an alloy of silver made up of around 93% silver and 7% other metals, such as copper, all blended together to form the substance.

Which state of matter expands when heated and is easy to compress? a.) gas b.) liquid c.) solid d.) all of the above

a scientist mixes to clear substances together and notices the following about the final solution it is cloudy some bubbles are produced the temperature of the final solution is the same as the initial temperature of both substances is this a

From the periodic table, the number of valence electrons for most of the main group elements may be determined directly from the From the periodic table, the number of valence electrons for most of the main group elements may be determined directly

What is the difference between molecular formula and molecular model

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is

What might be a scientific question? O A. One that deals with how something happens O B. One that deals with morals and beliefs O C. One that deals with likes and dislikes O D. One that deals with right and wrong

Calculate the energy released in the following fusion reaction. The masses of the isotopes are: 14N (14.00307 amu), 32S (31.97207 amu), 12C (12.00000 amu), and 6Li (6.01512 amu).

How many grams of carbon dioxide are produced from 0.98 mol of Fe3O4?