Which is the main type of element found in the upper right part of the periodic table

Which of the following is a balanced chemical equation? Which of the following is a balanced chemical equation? A. AgNO3 + NaCl → 4AgCl + 2NaNO3 B. 2AgNO3 + 2NaCl → 3AgCl + 2NaNO3 C. AgNO3 + NaCl → AgCl + NaNO3 D. AgNO3 + 2NaCl → AgCl + 3NaNO3

Buoys that record El Niño can transmit data to satellites in space. What can you conclude from this fact? a. The buoy and its satellite are launched at the same time. b. The buoys are spread out along the equator. c.

When iron reacts with oxygen what substance is produced?

The number of moles of O2 in 2.24 L of O2 gas. calculate at STP

Which subatomic particle will be attracted by a positively charged object? (1) proton (3) electron (2) neutron (4) positron

20 Which statement describes a reversible reaction at equilibrium? (1) The activation energy of the forward reaction must equal the activation energy of the reverse reaction.

Count the total number of atoms in CaCO3: 2 3 4 5 6

Question #21TrueFalse The general name for a substance added to a reaction that affects the rate but is not consumed in the reaction is called a complex a. True b. False

what kinda energy is produced when a force causes a substance to vibrate, and the energy is transferred through the substance in a wave.

What is similar to iodine by chemical characteristics