Answer:
thermometer
Explanation:
The most important tool to use when collecting data relating to how thermal energy affects metals would be <u>the thermometer.</u>
The thermometer is an instrument used to measure temperatures and the temperature of a body is a measure of the amount of thermal energy present in the body.
<em>In order to obtain data relating to how thermal energy affects metals, the most important variable to take note of would be the thermal energy of the metals and this can only be done by the thermometer.</em>
M in rectangle is 90deg
Everywhere else may vary
Answer is: mass of product is 649.35 g.
Balanced chemical reaction: Ca(s)+Cl₂<span>(g) → CaCl</span>₂<span>(s).
m(Ca) = 23.4 g.
n</span>(Ca) = m(Ca) ÷ M(Ca).
n(Ca) = 23.4 g ÷ 40 g/mol.
n(Ca) = 0.585 mol.
From chemical reaction: n(Ca) : n(CaCl₂) = 1 : 1.
n(CaCl₂) = 0.585 mol.
m(CaCl₂) = 0.585 mol · 111 g/mol.
m(CaCl₂) = 649.35 g.
From the problem description you've given, I can't give an exact answer without a context. However, I found a similar problem with an illustration. Supposing this is the problem, we can set a mole balance:
n₁ = n₂ + n₃
Since n₃ is just part of n₁, it will always be less than n₁ because n₁ constitutes 100% mol A. Thus, the answer is letter C.
The circumstance which is it appropriate to ignore a data point when drawing the best line through data to make a graph is when there is the presence of the outliers.
<h3>What is a Graph?</h3>
This is defined as the pictorial representation of data or variables in an organized manner.
The graph when plotted contain a lot of points in which a line is drawn to pass the majority of them. In situations whereby some of the data point don't follow the line drawn then it must be ignored.
This is because they don't usually reflect the trend of the data which is why this particular scenario was chosen as the most appropriate choice.
Read more about Graph here brainly.com/question/19040584
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