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marin [14]
4 years ago
9

Please help infer a quantitative measurement that can be made from the scene shown. be sure to use at least one complete content

related sentence.

Chemistry
1 answer:
Tema [17]4 years ago
5 0

Answer:

The length (quantitative measurement) of the pencil is 5.5

Explanation:

Quantitative measurement are type of measurements which result in numbers    

with or without appropriate unit .

To obtain the length of the pencil , the pencil starts from 0 of the scale and ends at 5.5 , hence the value is 5.5.

Quantitative measurement in the picture is the LENGTH of the pencil shown in the picture.

The value of quantitative measurement obtained from the picture is 5.5 , therefore length of the pencil is 5.5 .

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Is a graph that starts at 25 and drops to 21, stays the same in temperature an endothermic reaction or an exothermic reaction?
ki77a [65]

Answer:

Explanation:

Endo and Exo thermic are defined by what changes take place in the environment of the reaction.

If the temperature goes up, the reaction is giving up heat. It is Exothermic.

If the temperature goes down, the reaction requires heat. It is Endothermic.

In this case, the temperature went down. The reaction is Endothermic.

5 0
2 years ago
For the reaction 2 NO(g) + 2 H2(g) => N2(g) + 2 H2O(g) the following data were collected. What is the rate law for this react
harkovskaia [24]

<u>Answer:</u> The rate law expression for the given reaction is written below.

<u>Explanation:</u>

Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

For the given chemical equation:

2NO(g)+2H_2(g)\rightarrow N_2(g)+2H_2O(g)

Rate law expression for the reaction:

\text{Rate}=k[NO]^2[H_2]^2

Hence, the rate law expression for the given reaction is written above.

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3 years ago
How many moles of tin atoms are there in 250 grams of tin?
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250gTi x (1mol/47.87 [molar mass]) =5.22247 moles

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