Correction?
which of the following combinations of reactants will result in a synthesis reaction? (my c)

cl2 + hbr

ca + h2o

mgo + h2o

c2h2 + o2

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element