Match these items. 1. kg measurement of area 2. cm 2 measurement of length 3. L measurement of mass 4. m measurement of volume

Many protists are single-celled organisms. Which of the following characteristics is also common to organisms in Kingdom Protista? A. thrive in environments without oxygen B. thrive in environments with little sunlight C.

Basic substances have a gritty texture. TRUE FALSE A substance is added to pure water and the concentration of aqueous H + ions increases. What kind of substance has been added to the water? an acid a base water either an acid or a base

When oxygen (O) reacts with iron (Fe), it produces rust (Fe2O3). In a closed system, how much oxygen must react with 120 grams of iron to produce 580 grams of rust?

Hydrogen reacts with oxygen to produce water. 2H2 (g) + O2 (g) → 2H20 (1) The mass of oxygen before and after the reaction A. varies with the experimental conditions B. is always the same. C. is sometimes same and sometimes different. D.

Define stp and explain its importance

Global warming can be slowed or stopped

Since 1915, chemical fertilizer has been mass produced for farming. Which of the following is the main water pollution problem caused by chemical fertilizer?

Relative dating will tell you exactly how old a rock layer is. True False

Explain the difference between biotic and abiotic

Lab 27. stoichiometry and chemical reactions: which balanced chemical equation best represents the thermal decomposition of sodium bicarbonate?