John dalton said that all atoms are identical in size and mass. explain why this is incorrect.

One of the disadvantages to use Permanent-mold casting is that you cannot insert cores in the molding. Group of answer choices True False

What are the oxidation numbers of the atoms in this reaction? Check all that apply. Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) 0 for Mg in Mg and MgCl2 0 for Mg (s) and H in H2 +1 for H in HCl -1 for Cl in HCl +2 for Mg in MgCl2

Purpose of speech (Ethos, Pathos, Logos)

What must be in balance for temperatures to remain constant?

You have a 12 oz. can (355 mL) of beer. You test the temperature and see that it reads 0◦C. Now this isn't just any beer; this is Guinness and you've heard that Guinness is best at room temperature (20◦C). If the specific heat 3 of Guinness is 4.

Which structures are found on sponges? pores medusae polyps stinging cells

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

What determines your blood cholesterol level?

Describe two ways that water moves through earthy atmosphere in the water cycle.

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist