Scientists use the physical and chemical properties to help them identify and classify matter. These physical and chemical properties are in a macro-perspective, in which these matter contains compounds, elements and atoms. Hence, matter can be classified in various ways, <span><span>
1. </span>Atomic number either atomic mass each element has</span>
<span><span>2. </span>By substance of that matter either pure substance or mixed substance</span> <span>
3. If they cannot reduce a certain substance into a much smaller quantified atomic structure then they they’ll use (2) to identify and classify it.</span>
Given that the volume and amount of water are kept constant,
P/T = constant
P₁/T₁ = P₂/T₂
Normal atmospheric pressure is 746 mmHg and normal boiling point of water is 100 °C.
746/100 = 589/T₂
T₂ = 79.0 °C
Correct Answer: compound because the atoms of the elements are combined in a fixed proportion.
<span>Okay then I would go with choice B since fusion takes place in the sun which is a giant star.</span>
<em>what should be ph-value to be strong acid?</em>
<em>what should be ph-value to be strong acid?</em><em>c</em><em>.</em><em> Less than </em><em>2</em><em>.</em><em>.</em><em>.</em><em>.</em>
