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fenix001 [56]
3 years ago
7

Because metallic bonds permit one plane of ions to slide past another without breaking bonds, metals are:_______

Chemistry
1 answer:
solniwko [45]3 years ago
8 0

Answer:

D. poor conductors of electricity.

Explanation:

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Signs of a chemical change
dezoksy [38]

Answer: There are five signs of chemical change

  • Color Change
  • Production of an odor
  • Change of Temperature
  • Evolution of Gas (bubbles start to form)
  • Precipitate (starts to form a solid)

When these signs start to form you know chemical change is at work.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
The reaction 2X →products is a second-order reaction, and the rate constant is 8.8 × 10−3 1/M·s. If the initial concentration of
tangare [24]
Answer is: A) 124 s.
c₀ = 3 mol/L.
c₁ = 0,700 mol/L.
k = 8,8·10⁻³ 1/M·s.
Integrated second order rate law is: 1/c₁ = 1/c₀ + k·t.
k·t = 1/0,700 - 1/3.
0,0088·t = 1,095.
t = 1,095 ÷ 0,0088.
t = 124 s.
c₀ - <span>initial concentration.
c</span>₁ - <span> concentration at a particular time.
k - </span><span>the rate constant.
t - time.</span>
7 0
3 years ago
What are Free Radicals ?​
DENIUS [597]

Answer:

an uncharged molecule (typically highly reactive and short-lived) having an unpaired valency electron.

4 0
3 years ago
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Copper is a solid phase of copper still unknown to science. The only difference between it and ordinary copper is that Copper fo
Scrat [10]

Complete Question

The complete question is shown on the first uploaded image  

Answer:

The density is  \rho =  8.21479 g/cm^3

Explanation:

From the question we are told that

         the lattice constant is  a =  0.295 nm = 0.295*10^{-9} = 0.295*10^{-7} cm

The density of Copper (\beta) is mathematically represented as

     \rho  =  \frac{ZM}{a^3N_A}

Where  Z is the number of units in a unit cell and  for BCC crystals  Z =2

          M is the molar mass of copper which same for Copper with a value of  

           M =  63.5  g/mol

          N_A is the Avogadro's constant with a value of  N_A =  6.022*10^{23}

Substituting values

       \rho =  \frac{2 *63.5}{(0.295*10^{-7})^3 * (6.022*10^{23})}

      \rho =  8.21479 g/cm^3

       

8 0
3 years ago
Calcium carbonate+nitic acid
miss Akunina [59]

Answer:

What does calcium carbonate and nitric acid make?

Explanation:

Calcium carbonate reacts with nitric acid to produce carbon dioxide.

is this what you wanted to know?

8 0
3 years ago
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