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Sladkaya [172]
3 years ago
14

Object A has a length of 4cm, a width of 3cm, and a height of 1 cm. Object B is dropped into a graduated cylinder. It displaces

15 mL of water. The volume of object A is:
-greater than the volume of object b?

-less than the volume of object b?

-equal to the volume of object b?
Chemistry
1 answer:
motikmotik3 years ago
8 0

Answer:

(2) Less than the volume of object b.

Explanation:

1 mL is, by definition, 1cc (cubic centimeter) of water. Therefore if B displaces 15 cc, then its volume is 15. A's volume is 4\cdot3\cdot1 = 12cc which is less than 15, so the answer is (2).

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Has highest melting point of two bonds
Liono4ka [1.6K]

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Ionic compounds

Explanation:

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LICUICY NICULUM
Evgen [1.6K]

Answer:

Missing component

Cl₂

H₂O

Explanation:

Reaction given:

? + 2NaBr → 2NaCl+Br

Mg+? → MgO+H2

missing component = ?

Solution:

Reaction 1

             ? + 2NaBr -----→ 2NaCl + Br

if we look at the reactants and products there is one element is in product side but not shown in the reactant side.

In products there are following atoms

Na (Sodium)

Cl (Chlorine)

Br (Bromine)

In Reactant there are following atoms

Na (Sodium)

Br (Bromine)

So only Chlorine is missing in the reactant side.

if we put chlorine in the reactant then this reaction will be complete

        Cl + 2 NaBr -----→ 2NaCl + Br

So chlorine react with water and give sodium chloride and bromine molecule, this is a single displacement reaction and chlorine replace bromine in the above reaction

Now balance the equation

          Cl₂ + 2 NaBr -----→ 2NaCl + Br₂

So, the missing component is

  • Cl₂

____________

Reaction 2

                Mg + ? ---------→ MgO + H₂

if we look at the reactants and products there are two element in product side but not shown in the reactant side.

In products there are following atoms

Mg (Magnesium)

O (Oxygen)

H (Hydrogen)

In Reactant there is only one following atom

Mg (Magnesium)

So Oxygen and Hydrogen is missing in the reactant side.

if we put water molecule (H₂O) in the reactant then this reaction will be complete

          Mg + H₂O ---------→ MgO + H₂

in this reaction magnesium (Mg) react with water (H₂O) and give magnesium oxide and hydrogen gas.

So, the missing component is

  • H₂O

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3 years ago
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Answer:

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4 0
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How many moles 1 gram H2SO4
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Answer:

0.0102 mole

Explanation:

Use and solve proportions for these with x as the unknown value.

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