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In-s [12.5K]
3 years ago
15

The last answer choice us D. Adding more of the chemical will hear the water but only up to a certain temperature

Chemistry
1 answer:
enot [183]3 years ago
4 0

D. Adding more of the chemical will heat the water but only up to a certain temperature

<h3>Further explanation</h3>

Chemical changes are changes in the process that produce new substances that are different from the initial/ forming substances. Chemical changes are usually known as chemical reactions. So there are products/reactions and reactants and there is a change in the molecule/particle

The chemical reaction is usually followed by the release of heat, gas, change in color, precipitate substance etc

The heat that occurs in the addition of chemicals is caused by the reaction with water. But there is a constant rise in temperature when water reaches <em>its maximum capacity to react with these chemicals.</em>

Evidenced by the addition of 15 g and 20 g of chemicals, the temperature changes are constant

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How many atoms are there in 4430 grams of lithium (Li)?
Ronch [10]

Answer:

3843.96 × 10²³ atoms

Explanation:

Given data:

Mass of Li = 4430 g

Number of atoms = ?

Solution:

We will calculate the number of moles first.

Number of moles =mass/molar mass

Number of moles = 4430 g/ 6.94 g/mol

Number of moles = 638.32 mol

1 mole contain 6.022 × 10²³ atoms

638.32 mol × 6.022 × 10²³ atoms / 1 mol

3843.96 × 10²³ atoms

5 0
2 years ago
While playing soccer, Carla slides across one of the lines on the field. When she stands up, what base does she dust off? calciu
babunello [35]

The soccer field has been placed with the outlines of the slaked lime. The chemical dust off from the falling has been calcium hydroxide.

<h3>What is slaked lime?</h3>

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The slaked lime chemically is a white powder of calcium hydroxide. Thus, after falling on the soccer field, the chemical dusted off by Carla is calcium hydroxide. Thus, option A is correct.

Learn more about slaked lime, here:

brainly.com/question/497323

6 0
2 years ago
Why concentrated acid is hazardous material​
Setler [38]

Answer:

Here's it.

Explanation:

Concentrated acids are very corrosive and dangerous chemicals that are commonly encountered in the laboratory. ... Concentrated acids may be fatal if inhaled; and can cause severe eye and skin burns, severe respiratory and digestive tract burns. Contact with other materials may cause a fire.

5 0
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Why are groups 1 and 2 referred to as the s-block of the periodic table
qwelly [4]

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This is because their valence electrons are located in the S - orbital.

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