Answer:
filtration
Explanation:
1.put the mixture in a beaker
2.add water to the beaker and stir to dissolve salt
3.filter using a filter paper to have sand as the residue
4.Evaporate the water to remain with salt crystals
Answer:
Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present.
7.93 x 10⁶mi
Explanation:
Significant figures are numbers that shows how accurate and precise scientific measurements are reported.
Here are some rules to identifying them;
- All non-zero digits are significant
- zeros between digits are significant
- leading zero before a decimal are not significant
- trailing zero after a decimal are significant
- trailing zero before a decimal point are significant.
The number 7926381 has 7 significant numbers.
To write in the scientific notation, we simply express as N x 10ᵃ
N is the number of significant number
a is the exponent
N here is 7.93
a here is 6
7.93 x 10⁶mi
learn more:
Significant figures brainly.com/question/2746374
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Your answer will be B because sodium and chlorine and both elements and two elements combine to make a compound
