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Harman [31]
3 years ago
14

Could anyone help me with question 3?

Chemistry
1 answer:
Masteriza [31]3 years ago
8 0
What your question for number 3
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All scientific discoveries are made in a<br> laboratory.<br> True<br> False<br> pls helppp
goblinko [34]

Answer:

i would say false.

Explanation:

some discoveries are made as people continue exploring the world...........they are just prooved in the laboratory, while there are other which are still made in the lab and are also examined there.

4 0
3 years ago
Need help with science pls help me
hoa [83]

Answer:

B. negative charge only

Explanation:

The saying "opposites attract" is true in the case. Since the rod is positively charged, the sphere must have a negative charge to be attracted to it.

A sphere that is positively charged would be repelled from the rod, and a neutral sphere would not be attracted or repelled.

3 0
3 years ago
What two-step process separated the cans into aluminum, steel, and tin?
Liono4ka [1.6K]

Answer:

Magnetivity and melting point.

Explanation:

Aluminum, steel and tin cans can be separated by two step process of magnetisation and melting point, because the three cans have different magnetic properties.

Steel attract to magnet easily because of it's has magnetic properties and these separate steel from aluminum.

Neither steel and aluminum melted at 300°C but Tin melt at that temperature.

3 0
3 years ago
How many moles are in 2.8 g of Mg?
larisa86 [58]

Answer:

2.8 mg ≈ 0.12 mol

6 0
3 years ago
Write the following number correct to 2 significant figures: 3644000<br><br> Hurry Plz NO TIME!!!
Nadusha1986 [10]
3644000 rounded to 2 significant figures is equivalent to 3.6
8 0
3 years ago
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