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3 years ago

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Chemistry

2 answers:

zmey [24]3 years ago

7 0

Answer:

$\sf { \fcolorbox{green}{g}{\: the diffrence between alkali and base in simple defination are:}}$

$\sf { \fcolorbox{green}{g}{\:All alkalies are bases but all bases are not alkalies }}$
$\sf { \fcolorbox{green}{g}{\:all alkalies are soluble in water but all bases are not alkalies. }}$

Andreyy893 years ago

4 0

Answer:

All alkalies are bases but all bases are not alkalies
all alkalies are soluble in water but all bases are not alkalies .

hope it is helpful to you

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aliina [53]

Conduction-

putting an icepack on injury

grabbing a warm coffee mug

burning yourself by touching boiling water

the handle of a pot being to hot to touch

Convection-

heat from a fire to warm hands

warm water rising to the surface of of the ocean etc.

warm air rising off pavement

an oven that cooks by cycling warm air through the bottom and out the top

Radiation-

cooking popcorn using microwave

heat from the sun hitting a solar panel

( i havent done science in a while cuz im homeschooled but i think most of these are correct)

good luck on what your working on !!

7 0

3 years ago

A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

IgorLugansk [536]

<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

<u>Explanation:</u>

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

7 0

3 years ago

Examples of solid mixtures

elixir [45]

Salad, a bag of different colored pebbles or sand, etc

6 0

3 years ago

What reaction type is depicted by the following equation? 2C2H2 + 5O2 4CO2 + 2H2O decomposition combination combustion single-re

Vladimir [108]

combustion is when you burn something in presence e of oxygen and the products will be mainly the CO2 and H2O

3 0

3 years ago

Read 2 more answers

Số hợp chất tố đa của nguyên tố này với nguyên tố khác theo hóa trị của nó

SVETLANKA909090 [29]

Answer:

Carbon

Explanation:

Carbon

5 0

2 years ago