3 years ago

This reaction type occurs when different atoms in two different compounds trade places.

Chemistry

1 answer:

Scorpion4ik [409]3 years ago

3 0

Your answer would be D, single replacement

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allochka39001 [22]

Answer:

1. Element is Ca

2. 20 electrons

3. 2 valence electrons

4. 4 energy levels

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2 years ago

What is released in the process of an atom moving from an excited level to a lower energy level?

luda_lava [24]

The correct answer is a Photon.

One photon is released for each event. Photons are elementary particles of all electromagnetic radiation, including light.

7 0

3 years ago

For a different reaction, the plot of the reciprocal of concentration versus time in seconds was linear with a slope of 0.056 M-

Bond [772]

Answer:

$C_t=0.165M$

Explanation:

From the question we are told that:

Slope $K=0.056 M-1 s -1$

initial Concentration $C_1=2.2M$

Time $t=100$

Generally the equation for Raw law is mathematically given by

$\frac{1}{C}_t=kt+\frac{1}{C}_0$

$\frac{1}{C}_t=0.056*100+\frac{1}{2.2}_0$

$C_t=0.165M$

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3 years ago

5. Inside the mouth, these cells are joined together in a sheet. Why are they scattered here?

anyanavicka [17]

Answer:

Inside the mouth, these cells are joined together in a sheet. Why are they scattered here? They are scattered here because we disrupted there original form by scrapping them off our mouths and smearing them on the slide.

Explanation:

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3 years ago

The blood cells that directly attack germs are: *

irga5000 [103]

Answer:

lymphocytes

Explanation:

it consists of the b and the t cells

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3 years ago

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