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Jet001 [13]
3 years ago
11

suggest two observations that you can make when Calcium reacts with water and write a balanced equation for the reaction of calc

ium with water
Chemistry
1 answer:
Kamila [148]3 years ago
8 0

• Bubbles of a colourless, odourless gas are evolved

• The solution turns red litmus blue

       Ca + 2H_2O→ Ca(OH)_2 + H_2

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Write the formula for the conjugate base for the following acids. <br>Thank you ​
Llana [10]

Answer:

See the answer and explanation below , please.

Explanation:

A conjugate base is defined as that formed after an acid donates its proton.

For each article, a continuation of the conjugate bases (highlighted in bold), for dissociation in water:

a) HF + H20 --> F- + H30+      

b) H20+ H20 --> OH-  + H30+

C)H2PO3-  + H20--> HPO3 2-   + H30+

d) HSO4- + H20 -->  SO4 2- + H30+

E) HCL02 + H20 --> CLO02 -   + H30+

7 0
3 years ago
Read 2 more answers
Uses of baking powder​
NARA [144]

Baking powder is used to increase the volume and lighten the texture of baked goods. It works by releasing carbon dioxide gas into a batter or dough through an acid–base reaction, causing bubbles in the wet mixture to expand and thus leavening the mixture.

7 0
2 years ago
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According to VSEPR theory, a molecule with the general formula AX2E2 (A is the central atom, X is the bonded atom and E is a lon
ratelena [41]

Answer:

see explanation

Explanation:

An AX₂E₂ geometry is derived from an AX₄ parent geometry and is based upon 4 regions of electron density about the central element and defines a tetrahedral geometry and the geometry is bent angular.

An example is the water molecule (H₂O) with two covalent O - H bonds and two free pair electrons on the central oxygen element.

4 0
3 years ago
The terms Q and K refer to reaction components at non-equilibrium and equilibrium conditions, respectively. For a forward reacti
daser333 [38]

Answer:

The value of Q must be less than that of K.

Explanation:

The difference of K and Q can be understood with the help of an example as follows

         A ⇄ B

In this reaction A is converted into B but after some A is converted , forward reaction stops At this point , let equilibrium concentration of B be [B] and let equilibrium concentration of A be [A]

In this case ratio of  [B] and  [A]  that is

K =  [B] / [A] which is called equilibrium constant.

But if we measure the concentration of A and B ,before equilibrium is reached , then the ratio of the concentration of A and B will be called Q. As reaction continues concentration of A increases and concentration of B decreases. Hence Q tends to be equal to K.

Q = [B] / [A] . It is clear that Q < K before equilibrium.

If Q < K , reaction will proceed towards equilibrium or forward reaction will

proceed .

8 0
3 years ago
Things an animal does to survive are called...
Elina [12.6K]

Things an animal does to survive are called behavioral adaptations. The correct option is c.

<h3>What is behavioral adaptation?</h3>

The adaptation of behavioral and physical characters that help to survive them.

For example, hibernating during winter, migration, etc. There are two types of behavioral adaptation, learned and instinctive.

Thus, the correct options are c: behavioral adaptations.

Learn more about behavioral adaptation

brainly.com/question/12101480

#SPJ1

3 0
1 year ago
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