a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
D is correct answer.
Ernest Rutherford is a name of the scientist who is the first proposed that atoms have a nucleus.
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-Charlie
The answer is: 60.
Tobacco products are made up of thousands of chemicals, including at least 60 known to cause cancer (carcinogens).
Some of carcinogens chemicals are: acetaldehyde, arsenic, radioactive elements (for example polonium-210), nitrosamines, nickel, benzene, polycyclic aromatic hydrocarbons, vinyl chloride.
Smoking tobacco causes at least 15 different types of cancer. For example: mouth, pharynx, larynx, oesophagus, liver, pancreas, stomach, kidney cancer.
Answer:
<h3>2.89 × 10²³ atoms of zinc</h3>
Explanation:
The number of atoms of zinc can be found by using the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
N = 0.48 × 6.02 × 10²³
We have the final answer as
<h3>2.89 × 10²³ atoms of zinc</h3>
Hope this helps you
I don't agree because ocean temperatures can get warm thanks to high sun temperature and warm fronts.