Using the proper protective equipment from goggles to lab coat and gloves. Also includes ventilation fan to prevent toxic fumes and emergency eyewash station
Answer 1 : State X is lightening and state Y is air.
Explanation:
Lightening is a phenomena which occurs due to electrostatic interaction between negatively charged ions and positively charged ions present in atmosphere.
Air is composed of various molecules of gases.
Answer 2: Third statement is correct.
Explanation:
When the vegetables are chopped change in shape of the vegetables that is physical change takes place.
When food is broken down into simpler form during digestion, chemical change takes place. During digestions the chemical composition of food changes as it was broken down into simpler molecules.
Reaction of calcium with water
Calcium reacts slowly with water. This is in contrast with magnesium, immediately above calcium in the periodic table, which is virtually unreactive with cold water. The reaction forms calcium hydroxide, Ca(OH)2 and hydrogen gas (H2).
Answer:
the answer is A
Explanation:
it is substrates because ,Enzymes are specialized proteins that catalyze or speed up chemical reactions within cells. The substance upon which an enzyme acts is called a substrate. Substrates are small molecules.
