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Bad White [126]
2 years ago
10

What type of galaxy is pictured?

Chemistry
1 answer:
andrew-mc [135]2 years ago
7 0
A maybe I’m not sure
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I need help on dis chem shi if y’all can answer fa me I would appreciate dat
elena55 [62]
I think it’s A I’m not 100% sure but I mean it’s worth a try
3 0
3 years ago
Pleaaase argent !!! Explain ur answers
shtirl [24]

Answer:

1. Dynamic equilibrium is a equilibrium in which the rate of forward direction is equal to the rate of backward direction. It is represented by a right left arrow.

2) Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_c  

For the given chemical reaction:

Fe^{3+}(aq)+SCN^-(aq)\rightleftharpoons [Fe(SCN)]^{2-}(aq)

The expression for K_c is written as:

K_c=\frac{[[Fe(SCN)]^{2-}]}{[Fe^{3+}][SCN^-]}

3) The value of K_c is 1000 , which means the products are more favoured as compared to reactants and that the equilibrium lies more towards product side.

4 0
3 years ago
In a chemical reaction, mass is conserved. this means that...
sergij07 [2.7K]
Atoms are the smallest particales of an element that can take part in a chemical reaction. During a chemical reaction no particles are created or destroyed. The atoms are simply rearranged from the reactants to the products, mass is NEVER lost or gained in chemical reactions...Mass is ALWAYS conserved. :) Hope this helped
8 0
3 years ago
Calculate the acid dissociation constant of a weak monoprotic acid if a 0.5M solution of this acid gives a hydrogen-ion concentr
RUDIKE [14]
Let the acid be HA.
The chemical formula for this acid will be the following:

HA \rightleftharpoons  H^{+}+A^{-}

The formula for the <span>acid dissociation constant will be the following:

</span>K_a= \dfrac{[H^+][A^-]}{[HA]}
<span>
We know [H+]=0.0001 (it's given).
However, we must find [A-] and [HA] in order to solve for the constant.

We find that [A-]=[H+] by using a electroneutrality equation.
Also, we can create a concentration equation to find [HA].

</span>0.5M=[A^-]+[HA]
[HA]=0.5M-[A^-]
<span>
Now, we can find the acid dissociation constant.

</span>K_a= \dfrac{[H^+][A^-]}{0.5M-[A^-]}

= \dfrac{0.0001*0.0001}{0.5-0.0001} = 2.0*10^{-8}
4 0
3 years ago
What is the density of a liquid if 12.5 ml of the liquid has a density of 9.80 g?
blagie [28]

Answer:

The answer is

<h2>0.784 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>density =  \frac{mass}{volume}</h3>

From the question

mass of liquid = 9.8 g

volume = 12.5 mL

The density is

density =  \frac{9.8}{12.5}

We have the final answer as

<h3>0.784 g/mL</h3>

Hope this helps you

3 0
3 years ago
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