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Recent questions in Chemistry
Balance the following equation by choosing the correct coefficient for R, S, T and Y. R C_2H_2 (g) + S O_2 (g) ⟶⟶ T CO_2 (g) + Y H_2O (g) R= S= T=4 Y= A. R=1, S=3, T=4, Y=2 B. R=2, S=5, T=4, Y=4 C. R=3,
Ravi Mengar
asked
Oct 8, 2024
by
Ravi Mengar
8.8k
points
Chemistry
high-school
1
answer
5
votes
215k
views
Of the following, the one which can be computed from a knowledge of the percentage composition of a compound and atomic weights is the? 1) Molecular formula 2) Empirical formula 3) Structural formula 4)
Chantey
asked
Oct 8, 2024
by
Chantey
8.0k
points
Chemistry
high-school
1
answer
3
votes
136k
views
a common buffer involves the use of acetic acid and sodium acetate. will the concentration of acetic acid go up or down if a small volume of hcl is added to a buffer solution containing acetic acid and
Mantler
asked
Oct 8, 2024
by
Mantler
9.1k
points
Chemistry
high-school
1
answer
5
votes
8.6k
views
What are the example of regenerated fibres?
JorgeGRC
asked
Oct 8, 2024
by
JorgeGRC
7.8k
points
Chemistry
high-school
1
answer
0
votes
151k
views
Predict the chemical formula for the ionic compound formed by Al 3+and C 2H3O2−
Niraj Burde
asked
Oct 8, 2024
by
Niraj Burde
7.8k
points
Chemistry
high-school
1
answer
1
vote
92.4k
views
Electrons in the atoms outermost orbitals, generally those orbitals associated with the highest energy principle energy level are
Morniak
asked
Oct 8, 2024
by
Morniak
6.9k
points
Chemistry
high-school
1
answer
4
votes
66.0k
views
1. Element X and element Y have a difference in electronegativity of 0.7; Will the bond XY be covalent or ionic? explain using electronegativity difference. 2. Which two substances would have a higher
Jasim Muhammed
asked
Oct 8, 2024
by
Jasim Muhammed
8.0k
points
Chemistry
college
1
answer
2
votes
26.1k
views
Form an ecuation to help you solve this problem. Four identical lumps of pold on one side of some scales talsnce with one identical lump and a 22kg mass. Find the mass of ane lump of gold.
Blaise Swanwick
asked
Oct 8, 2024
by
Blaise Swanwick
7.9k
points
Chemistry
high-school
1
answer
3
votes
6.5k
views
Which treatment protocol is recommended for acute promyelocytic leukemia (APL) with the specific cytogenetic abnormality M3? A) Danorubicin (Danorub) + cytarabine (araC) B) All-trans retinoic acid (ATRA)
David McLaughlin
asked
Oct 8, 2024
by
David McLaughlin
8.0k
points
Chemistry
high-school
1
answer
1
vote
191k
views
100 Points!!!!!! The effect of temperature on equilibrium has to do with the heat of reaction. If the reaction being considered has a ΔH of 57 kJ, how can you change the temperature to increase the product?
Ilyich
asked
Oct 8, 2024
by
Ilyich
8.3k
points
Chemistry
high-school
1
answer
1
vote
164k
views
the angle between the bonds between the carbon atom and hydrogen atoms located at vertices and___, is given by the expression
Depi
asked
Oct 8, 2024
by
Depi
8.6k
points
Chemistry
college
1
answer
1
vote
107k
views
A micropipette can be set to measure liquids in volumes of ________? 1) liters (L) 2) milliliters (mL) 3) microliters (μL) 4) nanoliters (nL)
Atzmon
asked
Oct 8, 2024
by
Atzmon
8.0k
points
Chemistry
high-school
1
answer
5
votes
165k
views
How much energy is released when 60.2 mol of nitrogen gas condensed into liquid nitrogen without any change in temperature? A) 6.02 kJ B) 602 kJ C) 12.04 kJ D) 120.4 kJ
Rodrigocfd
asked
Oct 8, 2024
by
Rodrigocfd
8.4k
points
Chemistry
high-school
1
answer
3
votes
18.6k
views
HELPPPP!!!! If 1 g carbon contains x atoms, what will be the number of atoms in 1 g of water?
Foobarna
asked
Oct 8, 2024
by
Foobarna
8.9k
points
Chemistry
high-school
1
answer
0
votes
184k
views
Given that Avogadro's number is 6.02 x 10²³ particles (atoms, molecules, etc) per mole. How many atoms are there in 0.500 mole of zinc? A. 1.20 x 10²⁴ atoms B. 0.500 x 10²³ atoms C. 131 atoms D. 3.01 x
Johniak
asked
Oct 8, 2024
by
Johniak
8.8k
points
Chemistry
high-school
1
answer
4
votes
354
views
What is the total mass of Rn-222 remaining in an original mass 160 mg sample of Rn-222 after 19.1 days?
Luizgrs
asked
Oct 8, 2024
by
Luizgrs
7.9k
points
Chemistry
high-school
1
answer
3
votes
49.3k
views
What is the density of salt, given that a 905-mg sample has a volume of 419uL?
Jahooma
asked
Oct 8, 2024
by
Jahooma
7.8k
points
Chemistry
college
1
answer
5
votes
73.5k
views
Between a reaction for Sn(s) and Ag(s), which solid is the anode and which solid is the cathode? a) Sn(s) is the anode, and Ag(s) is the cathode b) Ag(s) is the anode, and Sn(s) is the cathode c) Both
Flight
asked
Oct 8, 2024
by
Flight
8.4k
points
Chemistry
high-school
1
answer
4
votes
164k
views
I found in a book from 1500's that says that when you cook an egg (I assume a raw egg), it will get softer before it gets harder. Is that accepted by the science community today? Can someone explain to
Talha Khalid
asked
Oct 8, 2024
by
Talha Khalid
8.8k
points
Chemistry
high-school
1
answer
5
votes
73.9k
views
What is the normal range of potassium (K⁺) in the blood?
Mohammadreza Khahani
asked
Oct 8, 2024
by
Mohammadreza Khahani
8.0k
points
Chemistry
high-school
1
answer
4
votes
141k
views
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