Recent questions in Chemistry

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HCFC refrigerants contain which of the following? a) Helium, Carbon, Fluorine, & Chlorine b) Hydrogen, Chlorine, Ferrite, & Carbon c) Hydrogen, Chlorine, Fluorine, & Carbon d) Hydrogen, Chlorine, Fluorine,

Alekop asked Oct 5, 2024

by Alekop

8.1k points

1 answer

5 votes

127k views

Calculate the density and approximate modulus of the composite.

Harpal Singh asked Oct 5, 2024

by Harpal Singh

8.4k points

1 answer

4 votes

160k views

Oil-absorbing masks that are often recommended for oily and combination skin are:

WolfgangK asked Oct 5, 2024

by WolfgangK

8.5k points

1 answer

5 votes

201k views

A complete path through which electricity can flow is A. magnetic field line B. magnetic pole C. electrical resistance D. electrical field The subject is science there was no science

Nail asked Oct 5, 2024

by Nail

8.0k points

1 answer

1 vote

147k views

Which of the following options correctly defines intermolecular forces? A. Intermolecular forces are the weak forces of attraction found between the individual molecules of a molecular covalent substance.

Spacey asked Oct 5, 2024

by Spacey

9.0k points

1 answer

1 vote

167k views

Complete and balance the molecular equation for the reaction of aqueous copper(ii) chloride, cucl2, and aqueous potassium phosphate, k3po4. Include physical states.

Rfestag asked Oct 5, 2024

by Rfestag

8.1k points

1 answer

1 vote

155k views

Usually, during Oppenauer Oxidation, while oxidising secondary alcohols, acetone solution is used with Aluminium Tertiary Butoxide. This results into the oxidation of secondary alcohol into a ketone, along

CustardBun asked Oct 5, 2024

by CustardBun

8.2k points

1 answer

0 votes

119k views

___________________ breaks/reduces incorrect disulfide bonds and allows for correct formation of disulfide bonds

Steve Barnes asked Oct 5, 2024

by Steve Barnes

8.2k points

1 answer

4 votes

87.9k views

What substance would you add to NaHCO₃(aq) to form a buffer solution? 1) HClO 2) NaF 3) NH₃ 4) H₂CO₃ 5) NaCl 6) NaOH

Rasputino asked Oct 5, 2024

by Rasputino

8.2k points

1 answer

2 votes

219k views

____________ shall NOT be used to test for gas leakage.

Mohammed Mahmoud asked Oct 5, 2024

by Mohammed Mahmoud

8.2k points

1 answer

4 votes

128k views

60 POINTS How many grams of SO2 can be produced if 2.5 moles of O2 are used? S2 + 2O2 → 2SO2 PLEASE HELP. Use conversion set up and show work.

Javvano asked Oct 5, 2024

by Javvano

8.3k points

1 answer

2 votes

122k views

What is the 3 step strategy of reacting NH or OH bonds w/ organometallic reagents?

Swxxii asked Oct 5, 2024

by Swxxii

8.9k points

1 answer

3 votes

23.4k views

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetric flow rate of 5 m³/s. The turbine inlet temperature is 1400 K. For compressor pressure ratio of 8, determine:

Baisong asked Oct 5, 2024

by Baisong

7.8k points

1 answer

4 votes

36.4k views

A)berylium b)sodium c)neon d)oxygen e)selenium

Ronald Abellano asked Oct 5, 2024

by Ronald Abellano

8.3k points

1 answer

2 votes

46.8k views

Dil. HCl is added to Zn granules." How will you prove that chemical change has taken place here?

Hylianpuffball asked Oct 5, 2024

by Hylianpuffball

9.0k points

1 answer

4 votes

22.8k views

I notice that bubbles form in boiling water. According to the scientific method, which of the following could be hypotheses? A) Bubbles form in boiling water due to the presence of invisible gremlins.

Lionkor asked Oct 5, 2024

by Lionkor

7.7k points

1 answer

3 votes

227k views

Do atoms of other elements decide the physical properties or chemical properties in carbon compounds? a. Physical Properties b. Chemical Properties c. Both Physical and Chemical Properties d. None of the

Razvan Caliman asked Oct 5, 2024

by Razvan Caliman

8.0k points

1 answer

0 votes

204k views

What are 2 main reasons for condensate polishing. Options: A) Removal of impurities and chemicals B) Increased steam pressure C) Enhanced thermal conductivity D) Improved turbine efficiency

Simusid asked Oct 5, 2024

by Simusid

7.6k points

1 answer

5 votes

194k views

Which of the following areas of information is NOT necessary to be recorded on the high-level disinfectant record? a) Date and time of use b) Concentration of the solution c) Manufacturer of the solution

Freytag asked Oct 5, 2024

by Freytag

8.1k points

1 answer

4 votes

222k views

Question 5: Which of the following elements has the largest atomic size in the halogen group? a) Fluorine (F) b) Chlorine (CI) c) Bromine (Br) d) lodine (1)

Mike Cowan asked Oct 5, 2024

by Mike Cowan

7.8k points

1 answer

2 votes

140k views

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