How many variables should a scientist change at one time to have a good experiment?

A container of carbon dioxide has a volume of 260 cm at a temperature of 22.0°C. If the pressure remains constant, what is the volume at 44.0°C? PTV Initial Final Effect Final Answer with units!

What is the pH of a 8.7 x 10^-12 M OH - solution? pH = ?

Name an element that has properties similar to those of Chlorine. Don't need to explain

How many moles are it 68.50 g H2SO4? (Molar mass = 98.09 g/mol)

Which type of chemical model shows the bond angle and bond length between atoms and compounds?

Which organelles are unique to plant cells? chloroplasts mitochondria vacuoles nuclei

An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Which element is nuclear fusion least likely to produce? hydrogen, which has an approximate mass of 1 chlorine, which has an approximate mass of 35 argon, which has an approximate mass of 39 silicon, which has an approximate mass of 28 I know the

How deep does the surface current known as the Gulf Stream go A. 3,000 meters B. 3 meters C. 300 meters

What characteristics of a planet determine the strength of its gravitational force on other objects? A. diameter of the planet and its location in space B. the number of moons that the planet has C.