How does an atom become a positively charged ion? A. by gaining one or more electrons B. by gaining one or more neutrons C. by losing one or more electrons D. by losing one or more neutrons

In a molecule of methane (ch4), what type of bond joins the carbon atom to each of the hydrogen atoms?

1. The cell wall of a fungi is made of what? cellulose chitin cytoplasm 2. True or False: Fungi are different from animals because they have cell walls and are autotrophs. True False 3. All protists are autotrophs heterotrophs eukaryotes unicellular

Which organism lived on Earth during the Precambrian time? A. fern B. dinosaur C. cyanobacteria D. octopus

Convert this to metric units 0.000238 m to cm

Rom the equation for the decomposition of nahco3, what is the weight in grams lost when 1.000 g of nahco3 is decomposed thermally

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?

There is inverse relation between pressure and diffusion in liquid phase? •True •False

What do you need in order to do a stoichiometric calculation? (Choose multiple) Balanced Chemical Equation Molar masses of compounds involved The type of reaction taking place Oxidation Numbers