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valentinak56 [21]
3 years ago
14

Chemical reactions can be detected by changes in:

Chemistry
1 answer:
Molodets [167]3 years ago
7 0
Chemical reactions can be detected by changes in temperature
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What type of stress results when two plates push against one another?
Natasha2012 [34]

When two plates push against each other shear stress will happem because they move in opposite directions. In this case the force of the stress pushes some of the crust in different directions. When this happens, a large part of the crust can break off, which makes the plate size smaller.

3 0
3 years ago
Hydrogen bonds form between neighboring water molecules because of ________. A. electron transfer B. electron sharing C. the vis
Oduvanchick [21]

Answer:

Answer is B.

Explanation:

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7 0
3 years ago
100 POINTS ANSWER FAST
alex41 [277]
I believe the answer is a because 2 times 12 is 24. Hope this helped
8 0
3 years ago
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In a 100 g sample of iron(III) oxide, how many grams of iron are present?
e-lub [12.9K]
The formula of Iron(III) oxide is Fe2O3
In order to calculate the mass of iron in a given sample of iron(III) oxide, we must first know the mass percentage of iron in iron(III) oxide. This is calculated by:
[mass of iron in one mole of iron(III) oxide/ mass of one mole of iron(III) oxide] * 100 
= [(moles of iron * Mr of iron) / (moles of Iron * Mr of Iron + moles of Oxygen * Mr of Oxygen)] * 100
= [(2 * 56) / (2 * 56 + 3 * 16)] * 100
= (112 / 160) * 100
= 70%
Thus, in a 100g sample, the weight of iron will be:
100 * 70%
= 70 grams
8 0
3 years ago
When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in te
MAVERICK [17]

Answer:

1st one= -79.6

2nd one= -80

3rd one= -81.2

Explanation:

Good luck!

5 0
3 years ago
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