CHEMISTRY MIDDLE SCHOOL

What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?A. 14.0 g
B. 16.0 g
C. 18.0 g
D. 20.0 g

Answers

Answer 1
Answer: C. 18.0g. all you really have to do is add both of them together and you get your answer.

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Which best explains why the total mass of the product(s) would be less than thetotal weight of the reactant(s) after a chemical reaction?

Answers

The law of conservation of mass applies to all chemical reaction, so this means that there was equal mass before and after the reaction. However, if the mass has decreased, then it means there has been a loss of substance. The most common cause of this is the liberation of gases from a chemical reaction mixture, the mass of which is not measured by the scale.

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Does every rock go through the rock cycle, from igneous to sedimentary to metamorphic each time around??? Please answer

Answers

No it does not ALWAYS go through all the stages because each rock forms differently at different rates. Igneous rock can weather to sediement rock, or melt to magma, however this does not necessarily mean it does this every time. It all depends on the temperature, wind, and pressure/heat.

Which of the processes of the water cycle occur by releasing energy

Answers

EThe answer is Evaporation

is it true or false that all atom´s electrons can interact with the electrons of other atom to form bonds

Answers

false. only valence electrons can bond with other atoms' electrons.

What are the subatomic particles of barium

Answers

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PLEASE HELP ME RIGHT NOW PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!--INCLUDING LOUISIANA AND MINNESOTA--- ,THERE ARE 24 STATES WEST OF THE MISSISSIPPI RIVER . HOW MANY STATES THEN ARE EAST OF THE MISSISSIPPI RIVER?

PLEASE SOMEBODY ANSWER THX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers


Oh come on now, give me a break !  Have you thought about it yet ?

Do you know how many states there are all together in the USA ?

At the present time, there are  50  states all together.

If  24  of them are on one side, then how many are on the other side ?

Isn't it  (50 - 24) ?  Can you do the subtraction ?
10 states are east of the mississippi river but 11 if you include Louisiana
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