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3 years ago

Give three importance of PH in our daily life?

Chemistry

2 answers:

german3 years ago

6 0

$\bold{ANSWER}$

▶To check the nature of food items.

▶To check the nature of soil .

Likurg_2 [28]3 years ago

3 0

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Answer:

1. Living organisms and plants survive in neutral medium.

2. Plants grow or survive in neutral medium that is soil should be neutral. It is the soil is acidic, farmer uses lime as a basic to make the soil neutral and if the soil is a basic, farmer uses cow dung cakes as a acidic medium which neutralizes the soil and make soil neutral.

3. Animals survive only in neutral water, what is it rain makes the water body is acidic which causes aquatic animals die.

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Are elements matter and why?

nata0808 [166]

All matter is made up of substances called elements, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions. Gold, for instance, is an element, and so is carbon. There are 118 elements, but only 92 occur naturally.

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2 years ago

1/2 * m * v ^ 2 = mgh

viktelen [127]

C. the square root of 2gh

Explanation:

The square root of 2gh is equivalent to Torricelli's law in the equation.

given expression:

$\frac{1}{2}$ m v² = mgh

to find v, we make it the subject of the expression:

*multiply both sides of the equation by 2:

2 x( $\frac{1}{2}$ m v² )= 2 (mgh)

mv² = 2mgh

*cancel the mass, m appearing on both sides:

v² = 2gh

* find the square root of both side

v = √2gh

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2 years ago

Calculate how many grams of the product form when 16.7 g of calcium metal completely reacts. Assume that there is more than enou

swat32

39.96 g product form when 16.7 g of calcium metal completely reacts.

<h3>What is the stoichiometric process?</h3>

Stoichiometry is a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data.

Equation:

$Ca(s) + Cl_2(g)$ → $CaCl_2(s)$

In this case, for the undergoing reaction, we can compute the grams of the formed calcium chloride by noticing the 1:1 molar ratio between calcium and it (stoichiometric coefficients) and using their molar mass of 40 g/mol and 111 g/mol by using the following stoichiometric process:

$m_{ca_C_l_2}$ = 16.7 g Ca x $\frac{1 mol \;of \;Ca}{40g Ca}$ x $\frac{1 mol \;of \;CaCl_2}{1 mol \;Ca}$ x $\frac{111g of \;CaCl_2}{1 mol \;CaCl_2}$

$m_{ca_C_l_2}$ = 39.96 g

Hence, 39.96 g product form when 16.7 g of calcium metal completely reacts.

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1 year ago

Explain how there can be so many different kinds of suntances in the world

Volgvan

Because people make those substance out of other things

6 0

3 years ago

Read 2 more answers

When biological samples of unknown origins are discovered at a crime scene, what should investigators do?a. assume no pathogens

adoni [48]

Answer: assume pathogens are present and treat the samples accordingly

Explanation:

When investigators are unable to conclusively ascertain the source of a biological sample found at a crime scene, the correct thing to do is to treat it as if pathogens are present in it and handle it according to set rules on how to handle pathogens.

This is done to ensure that if a pathogen is indeed present, it would not cause a health emergency by infecting those who come in contact with the samples at the scene.

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2 years ago

Give three importance of PH in our daily life?​

Give three importance of PH in our daily life?