Scientific investigation is the process in which scientist solve the problems by using different systematic approach. It can be initiated in different ways.
Experimental Scientific investigation: The investigation in which scientist answer the question on the basis of experimental results. Experimental investigation contains both dependent and independent variables, and only one variable is tested at a time is possible. This process makes uses of collecting observation and identifying the process in physical word.
Noting the colour of a solution when heated is the experimental scientific investigation
Therefore, other given options are part of scientific observation whereas Noting the colour of a solution when heated explains the experimental scientific investigation.
The answer is motion, this is what I would go with because when you are dealing with gases it puts motion in the term of particles.
Answer:
MgC15
Explanation:
because of the weight it carries
Covalent bonds occur between atoms that share their electrons with each other. This can occur only when the atoms have similar electronegativities (that is, a desire for electrons), because otherwise, there is a significant difference causing one atom to "steal" the other's electrons (making an ionic bond).
So, covalent bonds are generally made between two elements that have a similar electronegativity. As a periodic trend, the electronegativity of an element is affected by the distance of its valence electrons (you'll probably cover that with VSEPR theory) from the nucleus, and the number of electrons. Starting with fluorine as the most electronegative, electronegativity decreases as it moves down and left on the periodic table, reaching cesium, the least electronegative element. So generally, when two elements are very close together on the periodic table, they tend to form covalent bonds.
Remember that ionic and covalent bonds are two ends of a spectrum. We never really have a truly ionic or truly covalent bond. Rather, there are subdivisions, like polar covalent, which are based on the electronegativity difference and describe the degree to which a bond exhibits either covalent or ionic properties.
The mass of ammonia required to produce 2.40 × 10⁵ kg of (NH₄)₂SO₄ is 6.18 * 10⁴ Kg of ammonia.
<h3>What mass in kilograms of ammonia are required to produce 2.40 × 10⁵ kg of (NH₄)₂SO₄?</h3>
The mass of ammonia required to produce 2.40 × 10⁵ kg of (NH₄)₂SO₄ is determined from the mole ratio of the reaction.
The mole ratio of the reaction is obtained from the balanced equation of the reaction given below:
- 2NH₃(g) + H₂SO₄(aq) → (NH₄)₂SO₄(aq)
Mole ratio of NH₃ and (NH₄)₂SO₄ is 2: 1
Mass of 2 moles of ammonia = 2 * 17 = 34 g
Mass of 1 mole of (NH₄)₂SO₄ = 132 g
Mass of ammonia required = 34/132 * 2.40 × 10⁵ kg
Mass of ammonia required = 6.18 * 10⁴ Kg of ammonia.
In conclusion, the mole ratio is used to determine the mass of ammonia required.
Learn more about mole ratio at: brainly.com/question/19099163
#SPJ1