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AysviL [449]
3 years ago
14

HELP PLEASE I GIVE 15 POINTS +++ BRAINLIEST!!!!!!!

Chemistry
1 answer:
Naddika [18.5K]3 years ago
6 0
Synthesis- compounds combine  vs. Decomposition-compounds break down (separate)
Synthesis-form a more complex substance vs. Decomposition-form a more simple substance
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The factor being measured in an experiment is the
guapka [62]
<span>Hey! Dependent variable parameter, I believe is the correct answer. (:</span>
3 0
3 years ago
Carlos is looking at a picture of a convergent boundary on which a volcanic arc and a trench are identified. Which type of conve
Elan Coil [88]

The answer would be:

Oceanic-Oceanic Convergent Plate

This is why:

When two oceanic plates collide, the heavier of the two would subduct or in other words, go under the other plate. When this happens, ocean trenches and volcanic arcs form. The trench forms at the point oceanic plate goes under the other plate. And above the other plate that goes over create volcanic arcs.  

5 0
4 years ago
Hello! So I need help with these neutralization reactions and its fill in the blank. The question asks,
Likurg_2 [28]

The balanced equation for the neutralization reactions is as below.

<h3>Balancing chemical reaction equations</h3>

In order for chemical equations to be balanced, the number of atoms of each element before and after the reaction must be equal.

Thus:

  • HBr + KOH --- > KBr + H_2O
  • 3HF + Fe(OH)_3 --- > 3 H_2O + FeF_3
  • 2HCl + Ca(OH)_2 --- > CaCl_2 + 2H_2O

More on balancing chemical equations can be found here: brainly.com/question/15052184

#SPJ1

5 0
2 years ago
What is the mass of a neutron?
ddd [48]
The mass of a neutron is 1.0086
3 0
3 years ago
Read 2 more answers
A 0.15 m solution of chloroacetic acid has a ph of 1.86. What is the value of ka for this acid?
dem82 [27]

Answer: 1.67\times 10^{-3}

Explanation:

ClCH_2COOH\rightarrow ClCH_2COO^-+H^+

   cM              0             0

c-c\alpha        c\alpha          c\alpha  

So dissociation constant will be:

K_a=\frac{(c\alpha)^{2}}{c-c\alpha}

Given:  c = 0.15 M

pH = 1.86

K_a = ?

Putting in the values we get:

Also pH=-log[H^+]

1.86=-log[H^+]

[H^+]=0.01

[H^+]=c\times \alpha

0.01=0.15\times \alpha

\alpha=0.06

As [H^+]=[ClCH_2COO^-]=0.01

K_a=\frac{(0.01)^2}{(0.15-0.15\times 0.06)}

K_a=1.67\times 10^{-3]

Thus the vale of K_a for the acid is 1.67\times 10^{-3}

4 0
3 years ago
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