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3 years ago

What's the meaning of pH indicator?

Chemistry

2 answers:

Goshia [24]3 years ago

5 0

Test how acidic or alkalitic it is

deff fn [24]3 years ago

5 0

The pH scale tells you how acidic or basic something is. Acidic elements are lower on the pH scale and as they move higher up the scale, they become more basic.

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Which statement best describes the domain and range of f(x) = -(7)X and g(x) = 7X7 O f(x) and g(x) have the same domain and the

Ivan

Answer:

The graph of this equation is shown in Figure 1. As you can see this is a straight line with negative slope and does not intersect the y-axis. So the ...

Explanation:

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2 years ago

Given the two reactions PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3 = 1.89×10−10, and AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4 = 1.25×10−4, what is the

Sergio [31]

Answer:

$1.2\times 10^{-2}$

Explanation:

The given reactions are:

PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq) $K_3 = 1.89\times 10^{-10}$

AgCl(aq)⇌Ag+(aq)+Cl−(aq) $K_4 = 1.25\times 10^{-4}$

Required reaction is:

PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

$K_f = \frac{K_3}{K_4^2}\\=\frac{1.89\times 10^{-10}}{1.25\times 10^{-4}}^2\\=1.2\times 10^{-2}$

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3 years ago

Where are elements with similar chemical properties found on the periodic table?

LekaFEV [45]

All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

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3 years ago

Metallic character is highest in the

krok68 [10]

Answer:

Explanation:

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3 years ago

Does percent error measure accuracy or precision?

Nesterboy [21]

Answer:

Precision

Explanation:

It figures out how close all of the data numbers are.

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3 years ago

Read 2 more answers