Answers by Cristian Pena

Answers by Cristian Pena

Chemical reactions occur when molecules or atoms collide, the bonds between atoms are broken, and new bonds are formed.Breaking the bonds of the reactants requires energy; bond formation releases energy.

answered Jul 9, 2021

2 votes

120k views

The perimeter of a square courtyard is 144 m. Find the cost of cementing it at the rate of £5 per m². *

answered Jun 26, 2021

4 votes

74.3k views

What tissue is responsible for photosynthesis

answered Jun 18, 2021

5 votes

201k views

What is the length of side AC of the triangle? Pls hurry

answered Apr 13, 2021

6 votes

11.3k views

List all the factors of 56. Tell whether 56 is prime or composite.

answered Feb 25, 2021

3 votes

60.4k views

What is the LCM OF 4, 8 and 16

answered Feb 3, 2021

3 votes

143k views

I need help please.

answered Dec 15, 2020

3 votes

140k views

Presented below is income statement data for Short & Company as of year-end 2019: Income Tax Expense $5,400 Cost of Goods Sold 14,300 Other Expenses 500 Net Revenue 62,950 Operating Expenses 27,000 Required

answered Dec 12, 2020

5 votes

181k views

How is the precision of a calculated result related to the precision of the measurement used in the calculation?

answered Dec 6, 2020

4 votes

116k views

I need help with icp question asap! picks below! thank you so much

answered Oct 19, 2020

1 vote

181k views

Please can somebody give me some ideas for an essay about roman armys

answered Aug 25, 2020

1 vote

56.1k views

Find x and y intercepts for 3x=y+1

answered May 23, 2020

5 votes

103k views

Which happened first of the following events? A. VJ Day B. VE Day

answered Dec 30, 2019

2 votes

122k views

HELLO PLEASE HELP ME IM DESPERATE What is the domain of f (x) = (1/3)^x ?

answered Sep 8, 2019

4 votes

58.7k views

Solve y=x^2+23 for x

answered Apr 23, 2019

3 votes

90.6k views

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