Big question for physicists out there:How can we be sure dark matter actually exists in our universe?

Charles's law describes the relationship of the volume and temperature of gas at a constant mass and pressure. According to this law, what would happen to the volume of the gas if its temperature decreased from 400 K to 300 K? O A.

How many moles of Co2 are produced when 0.2 moles of sodium carbonate reacts with excess HCl

During dry whether, clothes made of synthetic often stick to the skin. Which type of force is responsible for this

Elements on the periodic table are arranged by increasing?

Sugar must undergo a chemical change before it can be broken down into carbon and water. Based on this information, what type of substance is sugar? O A a crystal O B. a compound O c. a transition element OD. a heterogeneous mixture

Nature operates the same way everywhere in the universe except where we have evidence True Or False

Toluene (C7H8) and nitric acid (HNO3) are used in the production of trinitrotoluene (TNT, C7H5N3O6), an explosive.

What mass of oxygen gas is produced by the reaction of 3.8 g of ammonium perchlorate?

In the space provided write an electron configuration for a silicon atom in the excited state

Coenzyme q carries electrons between which stages of the electron-transport chain?