Questions by Ray Cheng

Questions by Ray Cheng

The density of platinum (Pt) is 21.5 g/cm^3 at 250C. What is the volume of 87.6 g of Pt at this temperature?

asked Jul 20, 2020

1 answer

5 votes

970 views

C. If an atom has 8 protons and 10 electrons, what is the charge? What type of ion is it

asked Jun 8, 2020

1 answer

4 votes

133k views

Which statement accurately describes what happens when ice melts in terms of energy? A)The ice releases energy which causes the water molecules to have less kinetic and potential energy, changing their

asked May 8, 2020

2 answers

1 vote

164k views

Which word could best replace the word dilapidated without changing the overall meaning of the passage?

asked Feb 26, 2020

1 answer

2 votes

101k views

I do not understand how set up this problem, please help

asked Jan 7, 2020

2 answers

4 votes

86.0k views

Otfrid foerster and wilder penfield were able to map the _____ in humans by stimulating different parts of the cortex and observing the physical responses.

asked Dec 5, 2019

1 answer

4 votes

67.6k views

Maria luisa maria elena maurico toni es la madre de juan carlos

asked Jun 15, 2019

2 answers

3 votes

183k views

Name an event that's on most family home videos family feud

asked Feb 14, 2019

1 answer

3 votes

96.8k views

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