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Basile [38]
3 years ago
13

I have a block of gold and the density is 13.54g/ml If I cut the block in half what is the density of the smaller pieces of gold

Chemistry
1 answer:
Delvig [45]3 years ago
5 0

Answer:

<u><em>Density is the same</em></u>

Explanation:

The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.

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Define cohesion. Describe how the cohesive property of water is useful for living organisms.
kolbaska11 [484]

Answer:cohesion is the action or fact of forming a united whole.

Water is very cohesive in that it "sticks" to itself. Cohesion is what allows a water droplet to form, for example. When water molecules surround one another, they settle toward a low energy state. ... Adhesion and cohesion are water properties that affect living and non-living things on earth through water molecules.

Explanation:

8 0
4 years ago
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Which of the following compounds contain an electrostatic attraction as bonds between ions?
ValentinkaMS [17]
An ionic bindis a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. The electrical and thermal conductivity of metals originate form the fact that their outer electrons are delocalized. I hope this helps
5 0
3 years ago
Calcium carbonate can break down to form calcium oxide and carbon dioxide.
DerKrebs [107]

Answer:

The answer to your question is the third choice.

Explanation:

                        CaCO₃  ⇒   CaO  +  CO₂

Check if the reaction is balanced or unbalanced

                  Reactants       Elements         Products

                           1              Calcium                1

                           1               Carbon                 1

                           3              Oxygen                3

As the number of atoms in the reactant is the same that the number of atoms in the products we conclude that the reaction is balanced.

So the correct answer is balanced because the total number of oxygen atoms is 3.

4 0
3 years ago
Read 2 more answers
How many liters of oxygen are needed to exactly react with 19.8 g of methane at stp? ch4(g) + 2 o2(g) → co2(g) + 2 h2o(l)?
Sedaia [141]
55.44 L O2 is needed. 
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7 0
3 years ago
How many grams are in 0.220 mol of Ne?
kumpel [21]

Answer:

4.44 g Ne

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

0.220 mol Ne

<u>Step 2: Identify Conversions</u>

Molar Mass of Ne - 20.18 g/mol

<u>Step 3: Convert</u>

<u />0.220 \ mol \ Ne(\frac{20.18 \ g \ Ne}{1 \ mol \ Ne} ) = 4.4396 g Ne

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

4.4396 g Ne ≈ 4.44 g Ne

3 0
3 years ago
Read 2 more answers
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