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Hitman42 [59]
3 years ago
13

Directions: Fill in the blanks with the correct term to complete the statements.

Chemistry
1 answer:
Tju [1.3M]3 years ago
4 0

Answer:

1) secondary waves

2)

3) P waves

4)surace waves

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In the reaction MgCI2+ 2KOH —> Mg(OH)2 + 2KCI if 6 moles MgCI2 are added to 6 miles KOH which is the limiting reagent
Ratling [72]

KOH is the limiting reagent

The molar ratio is 1:2

So if you have 6 moles of MgCl2 you need 12 moles of KOH

7 0
4 years ago
A chemist needs 1.25 moles of sugar to dissolve in 1 liter of water how many grams of sugar needed
sdas [7]

Answer:

The mass of sugar used is 427.5 grams.

Explanation:

The formula of common sugar is \mathrm{C_{12}H_{22}O_{11}}.

Its molar mass of molecule is 342 grams per mole.

The number of moles of sugar used is equal to '1.25'

\mathbf{Mole=\frac{Mass \ given \ in \ grams}{Molar \ mass \ of \ molecule \ in \ grams}}

\textrm{Mass in grams}=\textrm{Mole} \times \textrm{Molar mass of molecule in grams}

\textrm{Mass in grams}= 1.25\times342

\mathbf{Mass \ in \ grams=427.5 g}

(NOTE : <em>You can calculate molar mass by adding the mass of all the atoms present in the atom. </em>

<em>Mass of Oxygen (O) = 16  ;  Total number of Oxygen atoms present = 11</em>

<em>Mass of Hydrogen (H) =1  ;  Total number of Hydrogen Atoms present = 22</em>

<em>Mass of Carbon (C) = 12   ;  Total number of Carbon atoms present = 12</em>

<em>Total mass of molecule = 12 × 12 + 1 × 22 + 16 × 11 = 342</em>)

4 0
3 years ago
Johnny has 4 Cups of hot cocoa. The instructions tell him to add 1 pint of water for every 2 pints of cordial. How much water sh
White raven [17]
I’m assuming the cordial is cocoa, two cups equals a pint. So he should add 1 pint or 2cups of water. Whichever measurement you need.
8 0
2 years ago
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Artemon [7]

Answer:

Explanation:an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid non-metals or semiconductors

3 0
4 years ago
Which characteristics can be inherited
andre [41]

Answer:

skin color, personality type, hair color/type, eye shape/type chin type, face shape etc.

Explanation:

hope this helps!

5 0
3 years ago
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