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2 years ago

How to remove acetone from a school chromebook

2 answers:

8 0

Answer:

Blot the liquid with a dry, white absorbent cloth. Gently scrape up semi-solids with a rounded spoon. Break up solids and use something to remove them

kkurt [141]2 years ago

7 0

Answer:

Apply some dishwashing solution with a white washcloth to the acetone residue and for a few minutes, work in gently from the edges of the spill to the center. Dont rub. Continue until the spill is completely removed.

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Help me (number 5).

olga55 [171]

Answer:

a. HF

Explanation:

6 0

2 years ago

How many protons and electrons are present in Au+?

balandron [24]

Answer:

Protons: 79

Electrons: 78

Explanation:

1. The number of protons is the atomic number (The atomic number for Au on the periodic table is 79)

2. Since the charge is +1 (positive) it means that there's one more proton than electrons. So, 79-1 = 78 electrons

7 0

3 years ago

Examples:

Lostsunrise [7]

Uhhhhhhhhhhhhhh wut, can you rewrite it?

6 0

3 years ago

A fishing line sinker contains 0.650 moles of lead. How many atoms of lead are in the sinker? Show all of your work, including s

34kurt

Answer:

3.91x10²³ atoms of lead

Explanation:

In chemistry, a mole of a substance is defined as 6.022x10²³ particles that could be atoms, molecules, ions, etc.

As you can see, in the problem, you have 0.650moles of lead in a fishing line sinker, the present atoms are:

$0.650mol Pb \frac{6.022x10^{23}atoms}{1mol}$ =<em> 3.91x10²³ atoms of lead</em>

7 0

3 years ago

A 1.5L intraveneous (IV) solution contains 919 grams glucose (C6H12O6). What is the molarity of this solution?

AleksandrR [38]

Answer:

3.4 M

Explanation:

M = grams/molar mass = ans./volume(L)

M = 919/180 = ans./1.5

3 0

3 years ago