Recent questions in Chemistry

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Calculate Hydrogen reacts with excess nitrogen as follows: N2(g) + 3H2(g) → 2NH3(g)If 27.0 g of H2 reacts, what mass of NH3 is formed?

Evyatar asked Jul 7, 2023

by Evyatar

5.2k points

1 answer

0 votes

77.3k views

What are the three mistakes in the set up below

Beretis asked Jul 6, 2023

by Beretis

4.9k points

1 answer

4 votes

93.6k views

What is solid turning into liquid called?

Midhun Sudhakar asked Jul 6, 2023

by Midhun Sudhakar

4.9k points

1 answer

3 votes

128k views

Calculate the % composition of Al2O3?Group of answer choices47.1% AL, 52.9% O52.9% Al, 47.1% O28.3% Al, 71.7% O71.1% Al, 28>3% O62.8% Al, 37.2% O

Khaledonian asked Jul 6, 2023

by Khaledonian

5.0k points

1 answer

0 votes

31.8k views

Balance the following chemical equation (I suggest using the algebraic method, otherwise good luck) include the steps you took to get there. KOH + KNO3 + Cr2O3 -> H2O + K2CrO4 + KNO2

Rethabile asked Jul 6, 2023

by Rethabile

4.6k points

1 answer

1 vote

35.2k views

Bromine gains electrons when it reacts with sodium. What happens to bromine in this reaction? OA. It undergoes decomposition. B. It undergoes oxidation. C. It undergoes reduction. OD. It undergoes synthesis.

Michael Abeln asked Jul 6, 2023

by Michael Abeln

4.8k points

1 answer

4 votes

114k views

True or false: in an ionic bond, the difference in electronegativities between the two bonding atoms is greater than the difference in a covalent bond.

Sani Huttunen asked Jul 6, 2023

by Sani Huttunen

4.5k points

1 answer

13 votes

226k views

An FM radio station broadcasts at a frequency of 107.9 Hz. What is the wavelength of the radio signal

Hanae asked Jul 6, 2023

by Hanae

5.2k points

1 answer

2 votes

107k views

Consider a 175.7 g sample of the compound manganese(IV) perchlorate. Using the formula Mn(ClO₄)₄ (MM = 452.74), What quantity in moles of oxygen are in 175.7 g of manganese perchlorate?

Mike Weller asked Jul 6, 2023

by Mike Weller

4.4k points

1 answer

2 votes

14.4k views

Please solve the question.

Aeonaut asked Jul 6, 2023

by Aeonaut

4.4k points

1 answer

18 votes

9.5k views

Newton said, “If I have seen further than others, it is by standing upon the shoulders of giants.” Explain the meaning of this quotation.

NatFar asked Jul 6, 2023

by NatFar

4.2k points

1 answer

3 votes

125k views

Which is the limiting reactant in the following chemical reaction: NH3 + 5 O2 —> 4 NO + 6 H2O, if 4 grams of O2 is used and 2 grams of NH3 is used ? Show work

ZiNNED asked Jul 6, 2023

by ZiNNED

4.7k points

1 answer

0 votes

114k views

68.0 g H₂CC1₂. how many moles

SuperDuperTango asked Jul 6, 2023

by SuperDuperTango

5.2k points

1 answer

3 votes

68.1k views

D Question 5 2 pts Which of the elements bellow is the element that is the least chemically reactive: He, U, Na, Cl, H, F, Br.

Martin Kouba asked Jul 6, 2023

by Martin Kouba

4.5k points

1 answer

2 votes

152k views

Find the area of a trapezoid which has a measure of 7 meters for its height and 4 meters and 6 meters for its two bases.

Nicko Po asked Jul 6, 2023

by Nicko Po

5.1k points

1 answer

4 votes

84.1k views

Explain how humans get muscle cramps

Thrakbad asked Jul 6, 2023

by Thrakbad

4.7k points

1 answer

5 votes

86.9k views

3. What's the difference at a molecular level between synthetic and natural vitamin C?

Hriju asked Jul 6, 2023

by Hriju

4.9k points

1 answer

1 vote

88.3k views

What's a chemical change

Akosua asked Jul 6, 2023

by Akosua

4.6k points

2 answers

12 votes

150k views

Solve and balance H2+Cl2

Engr Saddam Zardari asked Jul 6, 2023

by Engr Saddam Zardari

4.8k points

2 answers

21 votes

22.5k views

How do bar graphs work?

Yogesh Yadav asked Jul 6, 2023

by Yogesh Yadav

5.1k points

2 answers

15 votes

155k views

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