Answer:
1 and 3 i think so i could be wrong
Answer:
Cardiac muscle is controlled involuntary, whereas skeletal muscle is voluntary.
Explanation:
Answer:
C = 2 and 1
Explanation:
An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.
All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other
The nucleus of tritium contain two neutrons and one protons.
Tritium is the isotopes of hydrogen whit atomic mass 3 amu. The other two isotopes of hydrogen are protium and deuterium.
The atomic mass of deuterium is two amu having one proton and one neutron and atomic mass of protium is one having one proton and zero neutron.
All isotopes have same atomic number one.
Isotope:
The isotope of an element have same number of protons but different number of neutrons thus having same atomic number and different atomic mass.
.
Atoms are the simpliest form of matter. But an atom can
be classified as an element and an element can be presented various substance. An
element can be oxygen, hydrogen and so on. The combination of two or more
elements is a compound. A compound can be a molecule, same as the atom to
element.
The number of moles of the gas at 77°C and 1.33 atm occupies a volume of 50.3 L is 2.35 moles. It can found with the help of Ideal gas equation.
<h3>What is Ideal Gas equation ? </h3>
The ideal gas equation is formulated as : PV = nRT.
In this equation, P refers to the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas that is measured in terms of moles, R is the universal gas constant, and T is the temperature.
Given ;
- Pressure = 1.33 atm
- Volume = 50.3 ltr
- Temperature = 77 (+273 k) = 350K
We know ;
- Gas constant (R) = 0.081 L atm/mol K
Formula used ;
n = PV / RT
n = 1.33 x 50.3 / 0.081 x 350k
= 2.35 moles.
Hence, The number of moles of the gas at 77°C and 1.33 atm occupies a volume of 50.3 L is 2.35 moles
Learn more about Ideal Gas here ;
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