Questions by David Xu

Questions by David Xu

What is the best definition of the enthalpy of formation, A HA? A. The energy released when products form in a reaction B. The energy absorbed when products form in a reaction C. The energy required for

asked Dec 9, 2023

1 answer

21 votes

22.2k views

X-4= x−4= \,\,-4+x −4+x

asked Nov 26, 2023

1 answer

2 votes

72.7k views

Can I have the summary of the stage of the Calvin Cycle in a table with its descriptions

asked Sep 12, 2023

1 answer

5 votes

129k views

The English law which first acknowledged the surpremacy of law over the ruler was the

asked Mar 4, 2023

1 answer

22 votes

132k views

184 cm sq one one of it's leg is 16 cm long.find the length of the other leg.

asked Jan 28, 2023

1 answer

19 votes

224k views

HELP ASAP ITS DUE TOMORROW PLS!!!!!

asked Nov 16, 2022

1 answer

3 votes

115k views

1 x 0.0016 - helppppppp!have a good day:)

asked Jul 14, 2022

1 answer

16 votes

235k views

1 x 0.0016 - helppppppp!have a good day:)

asked Jul 14, 2022

1 answer

16 votes

235k views

1 x 0.0016 - helppppppp!have a good day:)

asked Jul 14, 2022

1 answer

16 votes

235k views

A base ________________ H+ ions from a solution. After a base dissolves in water, the solution has a low H+ concentration. A: Removes B: Adds C: Neutralize

asked Jun 6, 2022

1 answer

0 votes

136k views

What is the enthalpy change(Q) when 60.0 g of NaOH is dissolved in one litre of water, given that the temperature of the solution increased by 15.8 °C?

asked May 3, 2022

1 answer

4 votes

218k views

Sam went to 35 basketball games this year. He went to 29 games last year. And will go to 17 this year. How many basketball games will Sam go to in all?

asked Oct 17, 2021

2 answers

0 votes

48.0k views

If the electronegativity difference between the elements in compound n a x is 2.1 what is element X a. Bromineb. chlorinec. fluorined. oxygen

asked Jun 1, 2021

1 answer

0 votes

163k views

What do waves carry?

asked May 25, 2021

1 answer

5 votes

101k views

The graph below shows the distances, in miles, that a dragonfly can travel in a certain number of hours: Based on the graph, what is the dependent variable, the equation relating the two variables, and

asked Apr 19, 2021

1 answer

0 votes

182k views

A person throws two identical stones from the top of a 200-m high cliff overlooking a lake. Stone 1 is thrown at an angle of 30° above the horizontal with an initial speed of 40 m/s. Stone 2 is thrown

asked Feb 14, 2021

1 answer

0 votes

15.1k views

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