1. a change in the color of a substance
2. False, a precipitate is a solid not a gas
3. a burning candle
Answer:
84.8% scrotium is present in 2.89g scrotium oxide
Explanation:
Mass percent of an element is the percentage product of the mass of the element divided by the mass of the compound formed by the interaction of the element with other elements.
Mathematically,
% of Sr element = mass of scrotium/ mass of scrotium oxide * 100%
% of Sr = 2.45g / 2.89g
% of Sr = 0.8477g of 100%
= 84.8% of scrotium.
Answer: Triangles are the strongest shape because they have fixed angles and don't distort very easily. Much of that works because the results from the characteristics of triangles, which are the strongest of all shapes.
Explanation: Hope this helps and I can get brainliest :)
