What type of reaction absorbs heat from the surrounding environment?

A. Endothermic

B. Exothermic

C. Heterothermic

D. Homothermic

Which material is the least likely to be recognized as a mixture by looking at it under a microscope?

In the chemical reaction below, calcium metal and water react to form calcium hydroxide and hydrogen gas.

Which desribes a step in the process of forming and ionic bond

In the following reaction, 2NaCl 2Na + Cl2 sodium and chlorine are products, salts, reactants, or ions?

If the two charges represented in the figure were brought near each other, they would a. have no effect on each other. b. repel each other. c. cause static discharge. d. attract each other.

Which states of matter have no definite volume?

Which weighs more 10g of iron or 10g of water

Which pair of elements would combine to form an ionic compound? а b sodium and calcium sodium and chlorine carbon and oxygen carbon and sulfur с d

How many moles are there in 545g of Fe2O3?

How are magic minerals different from Felsic minerals? A. Mafic minerals contains lower levels of iron and magnesium. B. Mafic minerals contain more dark-colored, high-density minerals C.