Answer:
For the Extra Credit Question your answer is 6.307e+9
Explanation:
Answer
1.5x10^-3 m
24.91x10^5
Explanation:
15 millimeters
- 1 mm = .0015
exponent indicates which way the decimal moved and to how many places
we moved the decimal backwards (negative) 3 spaces
2491 km= 2491000 m
exponent indicates which way the decimal moved and to how many places
we moved the decimal forwards (positive) 5 spaces
2491000.00 --> 24.91000
Answer:
The answer is letter b, mixture.
Explanation:
Let's define what a mixture is at first.
Mixture- In Chemistry, mixture is a material made up of two or more different substances that are physically combined. The identities of the substances are retained. There are two types of mixture: <em>homogenous and heterogenous.</em>
<u>Homogenous mixture</u> examples: saline solution and air.
<u>Heterogenous mixture</u> examples: sand and oil and water.
The student's record shows the color of the substance as yellow, shiny powder. It could mean that the substance is a mixture of different kinds of powders. This is already a hint, since powder is a form of mixture. The record also shows that the substance is attracted to magnet. Part of the powder mixture contains something that is attracted to magnet. It could be an iron powder, which is the shiny one. The substance can then be classified as letter b, mixture.
