Answer:
She lights a match and holds it to the wick of the candle.
Explanation:
Chemical change produces the required products of reactants by an irreversible reaction. For there to be a chemical change, a chemical reaction between reactants must occur.
Lighting of a match is a chemical change in which the friction between the match box and the gun powder on the stick produces a flame. This reaction produces a product by an irreversible process. After the flame burns out the wick of the candle, it can not be reversed.
Answer:
Color, luster, streak, hardness, and cleavage
Explanation:
Answer:
C. relative humidity
Explanation:
Sling psychrometer are instruments which have the purpose of determining the relative humidity level in the air. It has two types of thermometer that helps to carryout these functions, the wet-bulb and the dry-bulb.
The wet-bulb temperature is recorded by a thermometer whose bulb is enclosed in a wick holding moisture and is spun rapidly in air.
The dry-bulb has an air temperature recorded by a dry thermometer.
Thus, if a boater is still wondering if it will rain and she uses a sling psychrometer to measure the moisture content of the air relative to the temperature, Definitely, she is measuring the Relative humidity characteristics of the air.
Answer:
a person with type AB blood or a roan fur in cattle which is when cattle have a mixture of white and red fur
I’d say 3, so all of the above
