No, if H2O is separated into H2 and O, then it is not the same substance
ANSWER: B) drying paint
EXPLANATION: Car manufacturers use UV radiation to dry the paint o the vehicle. The high reflectivity of infrared radiation helps to keep the car interior cool. It also gives advantages over convection heating. It can provide both high intensity and low intensity heat and is a low cost heat source when compared in dollars per unit of energy consumed. The IR heating also doesn't penetrate deeply and apply heating only on the outer surface.
Answer: most similar o magnesium : strontium
least similar to magnesium : selenium
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Magnesium forms a cation having an oxidation state of +2 called as and oxygen forms an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral
Thus an element which will form cation with same oxidation state of +2 will be strontium and form .
Lithium and potassium both belong to group 1 and thus will form cations with oxidation state of +1 and form and respectivley.
Selenium is a non metal and thus will form covalent compound with formula
Answer:
1. Scientific Method, 2. Experiment, 3. Independent variable, 4. Controlled variable, 5. Dependent variable.
Explanation:
Protons / Neutrons is your answer