Chemistry, 26.09.2019 20:30 isabellecannuli
Im really desperate right now 20pts
q1:
select all the signs of a chemical change from the list below. (you may need to select more than one for full points)
question 1 options:
evaporating
bubbles (gas formation)
dissolving
color change
q2:
which of the following is an example of a chemical reaction that you've seen in your everyday life?
question 5 options:
fire burning
ice melting
salt dissolving
water freezing
q3:
select all the signs of a chemical change from the list below. (you may need to select more than one for full points)
question 1 options:
evaporating
bubbles (gas formation)
dissolving
color change
Answers: 1
Chemistry, 21.06.2019 15:30
1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?
Answers: 2
Chemistry, 23.06.2019 01:00
Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon
Answers: 2
Chemistry, 23.06.2019 02:00
As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave
Answers: 2
Chemistry, 23.06.2019 10:30
What are two radioactive isotopes that are used for dating rocks that are older than 10 million years
Answers: 2
Im really desperate right now 20pts
q1:
select all the signs of a chemical change...
q1:
select all the signs of a chemical change...
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