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erica [24]
2 years ago
7

Write the word and balanced chemical equations for the reaction between:

Chemistry
2 answers:
lesantik [10]2 years ago
7 0

Answer:

Potassium hydroxide + Hydrochloric acid → Potassium chloride + Water.

jeyben [28]2 years ago
4 0

potassium hydroxide + hydrochloric acid = neutralisation

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a sample of gold required 2.1200j of heat to melt it from room temperature, 22.0 degrees celsius to its melting point, 1064.4 de
ElenaW [278]

Mass of Gold = 267.165 ×  0.01552494829

⇒ 4.1477228099

The amount of heat(q) required to raise m grams of a substance-specific C from T1 to T2 is given by

q=m C (T2-T1) ........1

Given : q= 2.1200 J

the initial temperature of gold, T1 = 22.0Celcius

the final temperature of gold, T2 = 1064.4Celcius

specific heat of gold = 0.131

putting values in eq 1:

⇒ 2.1200 = m × 0.131 × (1064.4-22)

⇒ 2.1200 = m × 0.131 × 1042.4

⇒ 2.1200 / 136.5544

⇒ 0.01552494829

Since 1g= 0.01552494829 Pounds

Mass of Gold = 267.165 ×  0.01552494829

⇒ 4.1477228099

Learn more about temperature here: brainly.com/question/11464844

#SPJ9

7 0
1 year ago
which of the following structures are tubes? A. Eustachian, Pharynx, Bronchi. B. Cilia, Adenoids, mucous, epiglottis. C. Apex, M
Arte-miy333 [17]
The correct answer among the choices given is option A. Eustachian, Pharynx, Bronchi are structures that ensembles a tube. The Eustachian tube is a narrow passage from the pharynx to the middle ear. Pharynx is a passageway leading from the oral and nasal cavities to the larynx and the esophagus. Lastly, bronchi is an airway in the respiratory tract.
6 0
3 years ago
Round to 4 significant figures: 42,561
arsen [322]

6 is the fourth significant figures

if the number behind it is 5 or more then 5, you must add 1 to the number and ALL the number behind it will turn into 0

so that the answer is 42560

7 0
3 years ago
Decide whether the property measured was a chemical or physical property of X, if you can. If you don’t have enough information
olga nikolaevna [1]

Answer:

<u><em>See attachment for explanations.</em></u>

Explanation:

3 0
1 year ago
Complete the chart. (Remember to enter a 0 if necessary.)
Trava [24]
<span>Atomic Number 10 is Neon.

1s: 2
2s: 2
2p: 6 
3s: 0 
3p: 0 
4s: 0
3d: 0
4p: 0 
5s: 0</span>
6 0
2 years ago
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