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Recent questions in Chemistry
Balance the equation and solve the problem.H₂O -> H₂ + O21.97mol of O2 are produced.What mass of water, H₂O, reacted?g
Rosefun
asked
Jul 4, 2023
by
Rosefun
3.8k
points
Chemistry
high-school
1
answer
1
vote
181k
views
Which is the limiting reactant when 12.0 mol of CH4 are reacted with 20.0 mol of O2 in the following equation?CH4 + 2 O2 ---> CO2 + 2 H20a. O2b.CO2c. CH4d. H20
Kalpa Gunarathna
asked
Jul 4, 2023
by
Kalpa Gunarathna
3.5k
points
Chemistry
high-school
1
answer
1
vote
108k
views
A burner in a gas stove breaks propane and oxygen up to form carbon dioxide and water, thereby heating a home. Which part is the source of the activation energy required, and is this reactionendothermic
JohanVdR
asked
Jul 3, 2023
by
JohanVdR
4.6k
points
Chemistry
high-school
1
answer
4
votes
36.7k
views
Please help me Which element would be the worst conductor of electricity? A. Boron B. Aluminum C. Silicon D. Phosphorous
Omilus
asked
Jul 3, 2023
by
Omilus
3.8k
points
Chemistry
high-school
1
answer
4
votes
192k
views
10. Cesium-137 has a half-life of about 30 years. Is it normal that after more than 20 years, levels of radioactivity in the ground near Chernobyl are still very high? Explain your answer. /2 marks
Criticalfix
asked
Jul 3, 2023
by
Criticalfix
4.0k
points
Chemistry
high-school
1
answer
7
votes
130k
views
A 1-kg trophy sits on a shelf. What is the normal force and the direction exerted by the shelf? (Acceleration due to gravity is 9.8 m/s/s.) 1 N up 1 N down 9.8 N up 9.8 N down
Luckylukein
asked
Jul 3, 2023
by
Luckylukein
4.3k
points
Chemistry
high-school
1
answer
24
votes
33.3k
views
What would be the code for this? O 3R R3 8 OR
Kenzie
asked
Jul 3, 2023
by
Kenzie
4.2k
points
Chemistry
high-school
1
answer
5
votes
158k
views
The degree of polarity of a covalent bond between two atoms is determined by calculating the difference in their.
Eclarkso
asked
Jul 3, 2023
by
Eclarkso
3.8k
points
Chemistry
high-school
1
answer
3
votes
42.0k
views
What is the chemical formula for sugar?
Sshaw
asked
Jul 3, 2023
by
Sshaw
4.0k
points
Chemistry
high-school
2
answers
5
votes
222k
views
In normal decimal form and scientific notation
Draco Ater
asked
Jul 3, 2023
by
Draco Ater
4.2k
points
Chemistry
high-school
1
answer
4
votes
106k
views
Study the reaction. Which is true based on this reaction.
Kritzefitz
asked
Jul 3, 2023
by
Kritzefitz
4.1k
points
Chemistry
college
1
answer
1
vote
142k
views
NaCI(s) + 3.88 KJ > NaCI(aq)endothermic or exothermic
Anh Tuan Nguyen
asked
Jul 3, 2023
by
Anh Tuan Nguyen
4.0k
points
Chemistry
college
1
answer
0
votes
188k
views
_7 A teacher has a bottle of 12.0 M hydrochloric acid. She wants to make 2.0 L of 3.0 M HCl for her chemistry classes. How much of the 12.0 M HCI will she need to use? А. 0.5 L B 2L C 20 L D 50 L Show
Rajibdotnet
asked
Jul 3, 2023
by
Rajibdotnet
4.0k
points
Chemistry
high-school
1
answer
12
votes
36.0k
views
Why does zinc only form a 2+ ion?
Miedkes
asked
Jul 3, 2023
by
Miedkes
3.4k
points
Chemistry
college
2
answers
0
votes
102k
views
When electrons are lost, the ions formed are Negatively charged? Group of answer choices True False
Eren Yilmaz
asked
Jul 3, 2023
by
Eren Yilmaz
3.8k
points
Chemistry
college
1
answer
0
votes
184k
views
Which vein carries oxygenated blood back into the heart?
Jpact
asked
Jul 3, 2023
by
Jpact
4.3k
points
Chemistry
middle-school
2
answers
24
votes
170k
views
I need the 6 mark question answered and explained fully please
Jamal Abdul Nasir
asked
Jul 3, 2023
by
Jamal Abdul Nasir
3.3k
points
Chemistry
college
1
answer
1
vote
1.4k
views
What is the atomic mass of CO2 in atomic mass units?
Vivek Modi
asked
Jul 3, 2023
by
Vivek Modi
4.0k
points
Chemistry
high-school
2
answers
14
votes
74.0k
views
Why is reduced precipitation, rather than drought, the leading cause of limited water availability? A) Reduced precipitation is the cause of drought. B) Drought only impacts the supplies of groundwater.
Skizit
asked
Jul 3, 2023
by
Skizit
4.5k
points
Chemistry
high-school
2
answers
4
votes
61.8k
views
In a container with 512.1 L water, the pH should be changed to 5 using 95% sulfuric acid. The question is how much sulfuric acid is needed.
Kelvin Chung
asked
Jul 3, 2023
by
Kelvin Chung
4.2k
points
Chemistry
college
1
answer
9
votes
21.6k
views
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