Item 3 Which statement is true about impact craters? They are caused by volcanoes. They only exist on the moon. Earth has impact craters. Impact craters form when stars collide with planets.

Hi how statement about atomic structure is incorrect? A) protons are located in the nucleus b) protons And electrons the same mass. C) protons And electrons have opposite charges. D) neutral atoms contain the same number of protons And electrons.

How is it possible for the volume of gas to change but the volume of a solid cannot?

How many grams of H2O will be produced if 18.1 grams of Fe are produced? Fe3O4 + H2 - Fe + H20 Select one: O a. 7.8 Ob. 75 O c. 17 O d. 1.5

Match each word to it's correct meaning. 1. atomic mass 2. isotope 3. meson 4. neutrino 5. positron Atom with the standard atomic number and chemical properties but different atomic mass and physical properties.

How do u balance the chemical equation kcio3 kci+02

What is the total number of oxygen atoms represented in the formula na2c03.10h2o?

Atoms of metallic elements tend to A) gain electrons and form negative ions B) gain electrons and form positive ions C) lose electrons and form negative ions D) lose electrons and form positive ions

Only a small amount of the energy used in an incandescent light bulb (regular bulbs commonly used in households) is actually converted into light.

Suppose we want to charge a flask with 1.9 g of sugar. We put the empty flask on a balance and it is determined to weigh 450 g. Enter the weight we would expect to see on the balance when we're done adding the sugar.

The billiard ball model was working model of the atom until Thomson discovered the