Answer:Physical changes occur when matter changes its chemical property but not its nature. Water turning into ice is an example of a physical change. Baking soda powder reacting to vinegar is an example of a chemical change Remember! Physical change: Properties remain the same are____physichal_________________ . ______ ___________substances are formed. List 5 signs of chemical change: List 5 examples of physical change: ______________________ ______________________
Explanation:
i tried to answer the most because of my proofile page it seems like i am in high school but i am iin 6th grade
As we know that,
1 mm Hg = 1 torr
So,
745 mm Hg = X
X = (745 mm Hg × 1 torr) ÷ 1 mm Hg
X = 745 torr
Also,
1 mm Hg = 133.325 Pa
So,
745 mm Hg = X
X = (745 mm Hg × 133.325 Pa) ÷ 1 mm Hg
X = 99327 Pa
Result:
Option-A (745 torr) is the correct answer.
Answer:
Electrons, with a charge of -1.
Explanation:
The nucleus of the atom is composed of protons and neutrons.
The nucleus is where the bulk of the mass of an atom is found.
Electrons orbit the nucleus in various energy levels.
Protons have a charge of +1, neutrons have no charge, and electrons have a charge of -1.
Answer:
c
Explanation:mark me brainliest plz thanks
582 ml is the volume of gas.
Answer:
Explanation:
Using the ideal law of gases, the kinetic theory of gas can be stated as
PV = nRT
Here P is the pressure and it is given as 1.2 atm, V is the volume, which we need to find. Then R is the gas constant and T is the temperature while n is the concentration present.
As per the give question, P = 1.2 atm, T = 140 K and n = 0.5 moles, R = 8.314
V = 
V = 
So 582 ml is the volume of gas.
