Answer:
Newton believed that gravity was a force.
The law of universal gravitation offers a mathematical explanation for the attraction between the moon and Earth.
Newton was the first to have the idea that gravity is everywhere.
Answer: The child isotope has an atomic mass of 206.
Explanation:
Alpha decay : When a larger nuclei decays into smaller nuclei by releasing alpha particle. In this process, the mass number and atomic number is reduced by 4 and 2 units respectively.
General representation of an element is given as: 
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
General representation of alpha decay :
Answer:
1. Heterogeneous: Mixtures in which composition is not uniform throughout. For example, soil.
2. Homogeneous: Mixtures that have uniform composition throughout. For example, air.
3. Solute: the component of a solution which is present in smaller quantity. For example, Sugar in water
4. Solvent: the component of a solution which is pr3esent in larger quantity. For example, water
5. Solution: A solution is a homogeneous mixture of two or more substances. For example brass.
6. Mixture: When two or more compounds or elements mix up physically they from a mixture.
7. Colloid: Solutions in which particles are large and possess the characteristics of the Tyndall effect. For example milk.
8. Dissociation: the splitting of a molecule into smaller molecules is called dissociation.
9. Pure substance: A pure substance is a type of matter having definite properties.
10. Suspension: Suspensions are heterogeneous mixtures of undissolved particles. For example milk of magnesia.
11. Element: element is a substance made up of the same number of atoms.For example hydrogen
12. Compound: Compound is a substance made up of two or more elements. For example water.
Answer:
the source of energy for food is sunlight energy and the inside the cells of plants, algae, and photosynthetic bacteria, chlorophyll, and enzymes use the light energy to rearrange the atoms of the reactants to form the products. molecules of the glucose and oxygen gas
Answer:
![[HI]_{eq}=0.942M](https://tex.z-dn.net/?f=%5BHI%5D_%7Beq%7D%3D0.942M)
Explanation:
Hello,
In this case, the initial concentrations of hydrogen and iodine are the same:
![[H_2]_0=[I_2]_0=0.600M](https://tex.z-dn.net/?f=%5BH_2%5D_0%3D%5BI_2%5D_0%3D0.600M)
Thus, considering the given undergoing chemical reaction, one states the law of mass action in terms of the change 
due to the chemical change as shown below:
Therefore, solving for by quadratic equation one obtains:
Nevertheless, the feasible result is the first one as the second one results in negative concentrations, thus, the hydroiodic acid equilibrium concentration turns out:
![[HI]_{eq}=2*0.471M=0.942M](https://tex.z-dn.net/?f=%5BHI%5D_%7Beq%7D%3D2%2A0.471M%3D0.942M)
Best regards.
