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Recent questions in Chemistry
Grape juice at a rate of 3 kg/s is concentrated in a single-effect evaporator from 18% to 23% solids content. Calculate a) the product flow rate, b) the evaporation rate, c) the steam consumption, d) the
Ryanprayogo
asked
Sep 27, 2024
by
Ryanprayogo
7.9k
points
Chemistry
high-school
1
answer
0
votes
146k
views
The element ___ can be found as a yellow solid in nature and is used to make sulfuric acid
Vdvaxel
asked
Sep 27, 2024
by
Vdvaxel
8.4k
points
Chemistry
high-school
1
answer
2
votes
166k
views
The half-life of radium is 1690 years. If 10 grams are present now... A) 5 grams will be present after 1690 years B) 10 grams will remain after 1690 years C) 20 grams will be present after 1690 years D)
Moss
asked
Sep 27, 2024
by
Moss
7.7k
points
Chemistry
high-school
1
answer
2
votes
164k
views
Choose the formula for permanganate. a PO4 b HPO C MnO
Bondehagen
asked
Sep 27, 2024
by
Bondehagen
8.4k
points
Chemistry
college
1
answer
1
vote
101k
views
47. If the molar mass of X(HCO3)2 is 162 g mol-¹, determine the relative atomic mass of X. [H=1.0, C = 12.0. O = 16.0] A. B. C. D. 40 48 61 101 please answer with step by step solution
Nelson Bwogora
asked
Sep 27, 2024
by
Nelson Bwogora
8.1k
points
Chemistry
college
1
answer
5
votes
136k
views
How many decimals should you report to on a 10 mL cylinder? a) One; Limited precision in small volumes. b) Two; Standard practice for laboratory measurements. c) Three; Enhanced accuracy for small quantities.
Yu Zhou
asked
Sep 27, 2024
by
Yu Zhou
8.3k
points
Chemistry
high-school
1
answer
3
votes
13.9k
views
Define and give general equations for the five basic types of chemical reactions.
Maxim Sagaydachny
asked
Sep 27, 2024
by
Maxim Sagaydachny
8.7k
points
Chemistry
high-school
1
answer
2
votes
106k
views
How many moles of HCL are in 100.0g of HCL
Jon Vaughan
asked
Sep 27, 2024
by
Jon Vaughan
7.9k
points
Chemistry
college
1
answer
1
vote
17.8k
views
What is the pH of a solution made by mixing 0.050 mol of NaCN with enough water to make a liter of solution? Kₐ for HCN is 4.9 x 10⁻¹⁰. A. 9.00 B. 7.00 C. 5.00 D. 11.00
Matt Frear
asked
Sep 27, 2024
by
Matt Frear
7.1k
points
Chemistry
high-school
1
answer
0
votes
3.5k
views
Electrons released during the citric acid cycle are picked up by electron carriers and delivered to a. ATP synthase b. Nucleus c. Cytoplasm d. Electron transport chain
Neelima
asked
Sep 27, 2024
by
Neelima
8.6k
points
Chemistry
high-school
1
answer
2
votes
223k
views
What is the molar volume of CO2 at 39 C and 652 torr?
Hiveer
asked
Sep 27, 2024
by
Hiveer
8.6k
points
Chemistry
college
1
answer
4
votes
81.0k
views
Give 3 issues with exploiting metal ores
Haagenti
asked
Sep 27, 2024
by
Haagenti
8.5k
points
Chemistry
high-school
1
answer
2
votes
167k
views
The protonated amino group ( h3n-) is completely neutralized. What substance is likely involved in the neutralization process? a. Acid b. Base c. Salt d. Catalyst
Riezebosch
asked
Sep 27, 2024
by
Riezebosch
7.8k
points
Chemistry
high-school
1
answer
4
votes
30.4k
views
If an element does not have a charge and has the atomic number of 20, what would its electron configuration be
Jojodmo
asked
Sep 27, 2024
by
Jojodmo
7.9k
points
Chemistry
high-school
1
answer
1
vote
12.9k
views
What are the mole fractions of H₃PO₄ and water in a solution of 14.5 g of H₃PO₄ in 125 g of water?
Dennis Miller
asked
Sep 27, 2024
by
Dennis Miller
7.7k
points
Chemistry
high-school
1
answer
0
votes
65.2k
views
What ingredient would you not use on someone with an iodine allergy?
Steven Behnke
asked
Sep 27, 2024
by
Steven Behnke
7.8k
points
Chemistry
high-school
1
answer
1
vote
230k
views
Calculate the volume of gas produced when 5g HCl reacts with excess calcium carbonate.
Shabbir
asked
Sep 27, 2024
by
Shabbir
8.1k
points
Chemistry
high-school
1
answer
2
votes
207k
views
CFCs and HCFCs ________ making them capable of reaching the stratospheric ozone layer. a) are water-soluble b) are non-reactive c) have long atmospheric lifetimes d) are biodegradable
Parkerfath
asked
Sep 27, 2024
by
Parkerfath
7.4k
points
Chemistry
high-school
1
answer
5
votes
117k
views
what is the theoretical yield (in grams) of the sunscreen created from 0.30 ml of cinnamaldehyde and acetophenone? do not include units in your answer.
Safari
asked
Sep 27, 2024
by
Safari
8.9k
points
Chemistry
high-school
1
answer
4
votes
234k
views
What's the difference between magnesium and Aluminum?
Peterboston
asked
Sep 27, 2024
by
Peterboston
7.5k
points
Chemistry
college
2
answers
3
votes
105k
views
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