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Gelneren [198K]
3 years ago
13

Round 427963 to the nearest hundred​

Mathematics
1 answer:
jekas [21]3 years ago
4 0

Answer:

428,000

Step-by-step explanation:

You round the hundreds place

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Between a mixture and substance which can be separated into components & what are the two ways?
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Answer:


Step-by-step explanation:

Introduction:

Mixtures are not unique to chemistry; we encounter them on a daily basis. The food and drinks

we consume, the fuel we use in our vehicles, building materials, soil, air, and ordinary water are

all mixtures. In fact, very few common materials in the world are pure. Any material made up

of two or more substances that are not chemically combined is a mixture. It is not difficult to

separate the components of a mixture if you take advantage of differences in physical properties

of the components.

1. Sublimation. Some substances change directly from a solid to a gas when they

are heated. The reverse process, when the vapor goes back to the solid phase

without a liquid state in between, is called deposition. Some solids which sublime

are iodine, caffeine, and paradichlorobenzene (mothballs). Dry ice sublimes also.

2 Extraction. This uses a solvent to selectively dissolve one component of the

solid mixture. With this technique, a soluble substance can be separated from an

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3. Decantation. This separates a liquid from insoluble solid sediment by carefully

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4. Filtration. This separates a solid from a liquid through the use of a porous

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5. Evaporation. This is the process of heating a mixture in order to remove a

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6 0
3 years ago
Read 2 more answers
A school wants to buy a chalkboard that measures 4 feet by 6 feet. The chalkboard costs $7.21 per square foot. How much will the
kkurt [141]

Area of chalkboard = 4 feet x 6 feet = 24 square feet.


Total cost = 24 square feet x $7.21 per square foot = $173.04


Answer: $173.04

5 0
2 years ago
Cherry Avenue Park is in the shape of a rectangle. What is the area, in square
wlad13 [49]

Answer: a rectangles area is length x width. You need to find the numbers that represent the length and the width and multiply them

Step-by-step explanation:

7 0
3 years ago
Which angle pairs are supplementary? Check all that<br> apply.
Basile [38]

Answer:

The correct answers are B, C, and E.

B. < 4 and < 3

C. < 4 and < 5

E. < 3 and < 6

Step-by-step explanation:

The pairs in options B, C, and E add up to 180°, which is the definition of a supplementary angle.

Hope this helps!

8 0
3 years ago
There are 5 red marbles and 7 blue marbles in a bag What is the ratio of blue marbles to red marbles?
mash [69]
Correct Answer would be: 5/7
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2 years ago
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