Positive and negative charges are attracted to one another. Which of the following are attracted to a negative charge: an electron, a proton, a neutron, a nucelus, an atom? Explain your thinking.

When two chlorine atoms (Cl) join to form chlorine gas, Cl2,

A solution that contains many dissolved molecules in a fixed amount of solution is called 1. concentrated. 2. strong. 3. dilute. 4. weak.

They are lightning rods, and their purpose is to? A) protect the building in the event of thunder. B) protect the building in the event of a lightning strike. C) protect the building in the event of rain.

Photosynthesis produces movement in plants converts light energy from the sun to chemical energy stored in glucose converts chemical energy into food that can be eaten by the plant is responsible for converting oxygen into carbon dioxide

Explain why are we able to use water displacement to find the volume of the irregular objects in cm3.

How many different kinds of atoms occur naturally on earth? Why do you think so

Can a particle be a single atom? can a particle be a molecule?

Which is one way that in advance and biotechnology companies unintended consequence is that harm the environment? a. genetically modified plants require less water to grow b. patient using insulin pumps live longer than those without the pumps c.

A 27.3 g marble sliding to the right at 21.0 cm/s overtakes and collides with a 11.7 g marble moving in the same direction at 12.6 cm/s. After the collision, the 11.7 g marble moves to the right at 23.7 cm/s. Find the velocity of the 27.

Acids feel slick or soapy and usually have a bitter taste. True or False