A square boat made from iron has overall dimensions of 2.00 cm x 11.0 cm x 11.0 cm. It has a mass of 213 g. Water has a density of 1.00 g/cm3. Will it sink in water?

yes

no

A container has the dimensions of 10 cm x 50 mm x 0.2 m. It is filled completely with 5.0 kg of a powdery ore. What is the density of the ore in g/cm3? (D=m/V) 0.05 g/cm3 5.0 g/cm3 50 g/cm3 500 g/cm3

1. What is the pH of a solution that contains 6.8 x 10-3 M H307 at 25 °C?

From his experiments, J. J. Thomson concluded that A. cathode ray particles can move at very fast speeds. B. cathode ray particles can be moved by electric current. C. atoms contain small positively charged particles that are called protons. D.

The poH of a solution is 10.75. What is the concentration of OH-ions in the solution? Use TOH-1 POH

HCL + NaOH → H2 + NaCl In which of these would the reaction rate be the quickest? A) A 1M HCl solution reacts with a 1M NaOH solution B) A 1M HCl solution reacts with a 2M NaOH solution C) A 2M HCl solution reacts with a 1M NaOH solution D) A 2M HCl

A. what are isotopes? b. how are the isotopes of a particular element alike? c. how are they different?

The line of longitude used as the origin in a system of coordinates

In the ground state, has only 1 electron in a p orbital. A. carbon B. fluorine C. hydrogen D. nitrogen E. aluminum

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.