Answer:
an exothermic reaction that Increase in entropy
Sodium metal and hydrogen gas
Answer : The measurements are both precise and accurate.
Explanation :
Accuracy : It is defined as the closeness of a measured value to a standard or known value.
For Example: If the mass of a substance is 50 kg and one person weighed 48 kg and another person weighed 55 kg. Then, the weight measured by first person is more accurate.
Precision : It is defined as the closeness of two or more measurements to each other.
For Example: If you weigh a given substance five times and you get 1.8 kg each time. Then the measurement is said to be precise.
Level of precision is determined by the maximum number of decimal places.
When the level of precision is very very less, the measurement can be considered as most precise and most accurate.
As we are given the standard value of the sample is 20.000 and the values measured by the balance are, 19.995, 20.005, 20.001.
Since these three values are in the range of +/- 0.005 from one another. So, we can say that the measurements are both precise and accurate.
Hence, the measurements are both precise and accurate.
Answer:
6. yes you can add more beans with the each sounding signal to the beaker because there is pattern of adding beans in the beaker and addition of double has the capacity of 20 vs 40 more beans in the beaker
7. you can add up two more lines in the table
90 vs 180
100 vs 200
8. This could not be possible . the growth of population does effect the resources like land and space and other things .
need more help let me know if you need to understand something again . Text me Thanks
Explanation:
Physical<span> changes involve a new </span>form<span> or shape of matter,
</span>
Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical<span> substances.</span>
