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Sauron [17]
3 years ago
15

Helpp need answer for a test

Chemistry
1 answer:
snow_tiger [21]3 years ago
7 0
I think is letter B
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Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water. Give an
forsale [732]
<span>Bases and Acids are chemically opposite from each other,and there are multiple ways to distinguish how they react when dissolved in water. One accepted definition is that an acid is any chemical substance that, when it is dissolved in water, creates a solution with hydrogen ion activity greater than pure/neutral water. That is, it donates a proton to the solution. Any substance with a pH less than 7.0 is an acid, and includes substances such as vinegar and lemon juice. By comparison, a base is any chemical substance that, when it is dissolved in water, creates a solution in which has hydrogen ion activity less than pure/neutral water. That is, it accepts protons. Any substance with a pH greater than 7.0 is a base, and includes substances such as ammonia and baking soda.</span>
4 0
3 years ago
Read 2 more answers
Mass
DiKsa [7]

The molecular formula =C₆H₁₂O₆

<h3>Further explanation</h3>

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

CO₂=8.8 g

H₂O=3.6 g

Required

The molecular formula

Solution

mass C in CO₂ :

= 1.12/44 x 8.8

= 2.4 g

mass H in H₂O :

= 2.1/18 x 3.6

= 0.4 g

Mass O in compound :

= 6-(2.4+0.4)

= 3.2 g

Mol ratio C : H : O

= 2.4/12 : 0.4/1 : 3.2/16

= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

(CH₂O)n=180 g/mol

(12+2+16)n=180

(30)n=180

n=6

(CH₂O)₆=C₆H₁₂O₆

7 0
3 years ago
How many atoms doesCo(NO3)2 have
svet-max [94.6K]
The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.
7 0
3 years ago
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Water has a density of 1.0g/ml * Physical Property Physical Change Chemical Property Chemical Change
Daniel [21]

The density of water is a physical property.

You can measure it without changing the water to a different substance.

It is <em>not a physical change</em> because the water does not change to ice or steam.

You can observe a <em>chemical property</em> or a <em>chemical change</em> only if the water <em>changes to a different substance</em>.


5 0
3 years ago
Which of the following correctly compares the uses of line graphs versus pie chart
larisa [96]

the line graphs and pie charts are used for different kinds of analysis

a) pie chart : it compares the portion of one thing in a group of different things

For example out of 100 people how many have brown hairs , how many have black hairs and how many have white hairs

or

like population division out of 100 into different parts

b) line graphs: they show the relation ship between two variables

Example: effect of temperature on volume

it tells the trend in any property with respect to some other quantity or quality parameter.

6 0
3 years ago
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