The answer is Atomic Number. I hope this helps. :)
B. Another team of scientists must be able to replicate the results of
the experiment.
Explanation:
Scientists follow due scientific processes in supporting a claim. This process is known as scientific method. A scientific method is a procedural way of investigating an observation. It entails:
- careful observation and measurement
- detailed experiment
- the formulation, testing, and modification of hypotheses
Through this, when a finding is made, before it can be acceptable by the scientific community, it must be tested through a series of experiments by other scientist. These scientists will also test for the validity of the claim that a new element has been discovered.
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Experiment brainly.com/question/5096428
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Answer:
Explanation:
The heat received by water is equal to the heat rejected by the piece of metal. That is to say:
The initial temperature of the piece of metal is:
Answer:
It should be chloride I am almost positive
Explanation:
Typical Seawater
Chloride (Cl-) 18.980
Sodium (Na+) 10.556
Sulfate (SO42-) 2.649
Magnesium (Mg2+) 1.262
Answer:
The time decreases steadily
Explanation:
We know that the rate of chemical reaction is defined as how fast or slow a chemical reaction proceeds. Hence a chemical reaction is said to proceed at a faster rate if it takes a lesser time for the reaction to get to completion.
There are certain factors that affects the rate of reaction, prominent among them is the concentration of reactants. Concentration simply means the amount of substance in a system.
Taking a look at the table given in the question, we will realize that the volume of HCl remained constant, the volume of thiosulphate increased steadily while the volume of water decreased steadily. Remember that concentration increases when less water is added to the system. This implies that the reactant concentration increases steadily. Hence, according to the collision theory, particles collide more frequently and the rate of reaction increases.
As the rate of reaction increases, it now takes a lesser time for the reaction to get to completion (indicated by the disappearance of the cross). Hence as we move down the table, it takes lesser and lesser time for the cross to disappear. This means that the column for time will decrease steadily.
