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Which of the following is/are correct? 40500 has 5 significant figures. 6.730 has 4 significant figures. 3.20 x 10-3 has 2 significant figures.

The Egyptians had a system of land measurement which was later inherited by the Greeks and later on used by the Romans. If a landowner in ancient Egypt had 2.85 x 103 Egyptian cubits of land, how many millimeters is that stretch of land 1 Egyptian finger = 18.75 mm 2 Egyptian cubits = 55 Egyptian fingers

What is the molar mass of calcium sulfite, CaSO3?

Convert 321 meters/second to miles/hour?

Convert 127 meters/second to miles/hour?

Using the image in the previous question. Determine the correct statement about the species shown.  A is an isotope of X Z is an isotope of A X is an isotope of Z because they have the same number of protons they have the same number of nucleons (protons+neutrons)

Which of the following statements is/are true? Magnesium is a metal. Iron is a metalloid. Aluminum is a nonmetal.

What is the mass, in grams, of 0.570 moles of sodium?

Which of the following is true regarding the theoretical element below?

What is the coefficient of when the following theoretical equation is correctly balanced below?