Is glass etching a chemical change

What is the chemical compound of nitrogen gas?

What is subshell notation

Can a element be a metal and a non metal

Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in the reaction below. How many molecules of HCl would have to be present to form 70.84 g of MgCl₂? Mg (OH) ₂ (s) + 2 HCl (aq) → 2 H₂O (l) + MgCl₂ (aq)

Photosynthesis occurs mainly in what part of most plants?

What is the frequency of a wave? A. The amount of time that one full cycle takes B. The distance traveled by the wave during one full cycle C. The amount of cycles that occur in a given time D. The distance from the beginning to the end of a cycle

Which trait is most likely a result of artificial selection

The reaction of glucose, c6h12o6, with oxygen produces carbon dioxide and water. what is the sum of the coefficients in the balanced equation?

alexadra has a density of 3.72g/mL. and a mass of 11160 mg. If the object is placed in a graduated cylinder containing 25 mL of water. What is the final volume?

How should she report the answer using the correct number of significant figures? 14.206 14.21 14.2 14