Answer:
plastics, Styrofoam, paper, rubber, glass and dry air.
Explanation:
Answer:
1. The standard metric unit of length is a meter.
2. A proposed explanation for a scientific problem is a hypothesis.
3. The standard unit of volume is a liter.
4. The curved top surface of a liquid column is the meniscus.
5. A quantity in an experiment that remains unchanges or constant is a controlled variable (control)
6. The amount of matter in an object is mass.
Answer:
The dose of Mylanta 30 cc will decrease the absorption of the Tetracycline 250mg. The consequence of this is that, the patient will not be receiving a therapeutic dosage of the Tetracycline 250mg. Also, the Antacid should not be given together with any other drug, especially antibiotics.
Alpha decay involves the loss of an alpha particle, aka a helium nucleus. This results in the mass number of the original element decreasing by 4 and the atomic number decreasing by 2. Assuming 23942u is uranium (92), the resulting element's atomic number is 90, making it thorium.
Explanation:
Number of moles is defined as the mass of given sample divided by the molar mass of sample.
Mathematically, No. of moles = 
Since, it is given that mass of water is 45.9 g and it is known that molar mass of water is 18.02 g/mol.
Therefore, calculate the number of moles as follows.
No. of moles =
= 
= 2.547 mol
Thus, we can conclude that there are 2.547 mol present in 45.9 g of water.
