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IRINA_888 [86]
3 years ago
14

First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)

Chemistry
1 answer:
kap26 [50]3 years ago
6 0
Molar mass of FE2O3=2(55.85)+3(16)=159.7

2.56g*1mol/159.7*2mol/1mol*55.85g/1mol=1.79g
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The density of water is 1.0 grams per milliliter. What can you conclude from this simulation about whether an object will
aliina [53]

The density of water is 1.0 grams per milliliter then it will be sink in water

Density is a word we use to describe how much space an object or substance takes up in the volume and in relation to the amount of matter in that object or substance its mass) and another way to put it is that density is the amount of mass per unit of volume

Here given density is 1.0 grams per milliliter and it will be sink in water because the density of water in 1.0 g/ml and this object is more dense than water and the density of an object determines whether it will float or sink in another substance and an object will float if it is less dense than the liquid it is placed in and an object will sink if it is more dense than the liquid it is placed

Know more about density

brainly.com/question/18366165

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4 0
1 year ago
If each of you pulls with equal force, the rope will not move (the two forces are equal in strength, but opposite in direction).
Vedmedyk [2.9K]

Answer:

i dont know

Explanation:

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8 0
2 years ago
Blank is radiant energy emitted from the sun.
Bess [88]
None, it’s solar radiation
7 0
3 years ago
Read 2 more answers
Elements can be represented by chemical symbols. Which of the following is the correct way to write the chemical symbol for sodi
mixer [17]

Na

hope this helps :)

4 0
2 years ago
Calculate the [H+]
ELEN [110]

[H⁺]=6.696 x 10⁻⁵

pH = 4.174

<h3> Further explanation </h3>

Given

The concentration of 0.000295 M (2.95 x 10⁻⁴ M) butanoic acid solution

Required

the [H+]  and pH

Solution

Butanoic acid is the carboxylic acid group. Carboxylic acids are weak acids

For weak acid :

\tt [H^+]=\sqrt{Ka.M}

Input the value :

[H⁺]=√1.52 x 10⁻⁵ x 2.95 x 10⁻⁴

[H⁺]=6.696 x 10⁻⁵

pH = - log [H⁺]

pH = - log 6.696 x 10⁻⁵

pH = 5 - log 6.696

pH = 4.174

5 0
3 years ago
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