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Chemistry

What are closed systems?

Asked by arwen46

Last updated by anonymous on 01 Oct 15:15

Answers: 1

Chemistry

What's a characteristic of closed systems?

Asked by arwen46

Last updated by anonymous on 01 Oct 15:13

Answers: 1

Chemistry

What are some examples of closed systems?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:54

Answers: 1

Chemistry

What are open systems?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:52

Answers: 1

Chemistry

What's a characteristic of open systems?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:50

Answers: 1

Chemistry

What is thermochemistry?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:45

Answers: 1

Chemistry

Why is the role of energy in chemical reactions and physical changes very important to chemists?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:44

Answers: 1

Chemistry

During a chemical reaction what is used to break bonds?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:42

Answers: 1

Chemistry

What is an endothermic process?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:42

Answers: 1

Chemistry

What's an exothermic process?

Asked by arwen46

Last updated by anonymous on 01 Oct 14:41

Answers: 1

Math

how do you graph y=x+2?

Asked by jesse

Last updated by anonymous on 01 Oct 09:07

Answers: 1

Math

graph y=x+2

Asked by jesse

Last updated by anonymous on 01 Oct 09:06

Answers: 1

Math

Mike received fifty-eight dollars and nine movie tickets for his birthday. He went to a sporting goods store and bought a baseball glove, baseball, and bat.

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:59

Answers: 1

Math

There were 27 bales of hay in the barn and 10 bales in the shed. Jason stacked more bales in the barn today. There are now 75 bales of hay in the barn. How many bales did he store in the barn ?

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:56

Answers: 1

Math

Last week Dan had 25 dollars and Tim had 38 dollars. Dan washed cars over the weekend and now has 95 dollars. How much money did Dan make washing cars ?

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:53

Answers: 1

Math

Sandy is baking a cake. The recipe calls for 9 cups of flour and 2 cups of sugar. She already put in 3 cups of flour. How many more cups of flour does she need to add ?

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:50

Answers: 1

Math

(8 + 2y^3 + 5y^4) - (3y^4 - 4y^2 - 7) + (6y^3 + 9y^2)

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:47

Answers: 1

Math

(3s + 8s^4) - (2s - 6s^4 + 4)

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:41

Answers: 1

Math

(5p^2 - 7p^4 + 3p) - (6p^2 - 8p^3 + p) + (4p^3 + 9p^4 - 2p^2)

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:38

Answers: 1

Math

(9s^4 - 4s + 5) + (2s^4 - 6 + s^5) - (7s^5 - 8)

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:32

Answers: 1

Math

(8x^3 + 6x^2 + 9) - (5x^2 + 3) + (7x^3 - 4x^2)

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:28

Answers: 1

Math

(7^2 + 6) + 9=

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:24

Answers: 1

Math

8 + 1 * (6^3 / 4 / 3)=

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:22

Answers: 1

Math

(2^3 / 4^2 + 6)=

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:19

Answers: 1

Math

(2 * 5^3) / 1 - 8=

Asked by AnneS2

Last updated by anonymous on 01 Oct 08:17

Answers: 1