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valkas [14]
3 years ago
15

The rate at which a chemical reaction occurs cannot be changed. (True or False)

Chemistry
1 answer:
frozen [14]3 years ago
8 0
The answer is false.
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What happens if you rub a balloon against wool and put it against water dripping from a cup
Goryan [66]

Answer:

The water bends due to the static electricity on the balloon.

Explanation:

The static electricity you built up by rubbing it against the balloon attracts the stream of water, bending it towards the comb or balloon like magic!

Negatively charged particles called electrons jump the wool to the balloon as they rub together, the comb now has extra electrons and is negatively charged. The water features both positive and negatively charged particles and is neutral. Positive and negative charges are attracted to each other so when you move the negatively charged balloon towards the stream, it attracts the water's positively charged particles and the stream bends!

8 0
3 years ago
Through what type of single pericyclic reaction did the reaction shown below proceed
Flauer [41]
A. [1,2] sigmatropic hydrogen migration
8 0
3 years ago
What is the coefficient for O2 in the balanced version of the following chemical equation: C2H4+O2→CO2+H2O
andriy [413]

Answer:

3

Explanation:

Here's the balanced equation;

C2H4 + 3O2 → 2CO2 + 2H2O

C ⇒2                          C ⇒1 x 2 = 2

H ⇒4                          H ⇒2 x 2 = 4

O ⇒3 x 2 = 6             O ⇒ (2 x 2) + (2 x 1) = 6

6 0
3 years ago
How many moles of compound are there in the following?
slavikrds [6]

a) (NH4)2SO4 --- 1 mole of it contains 2 moles of N, 8 moles of H, 1 mole of S, and 4 moles of O.

MM = (2 moles N x 14.0 g/mole) + (8 moles H x 1.01 g/mole) + (1 mole S x 32.1 g/mole) + (4 moles O x 16.0 g/mole) = 132 g/mole.

6.60 g (NH4)2SO4 x (1 mole (NH4)2SO4 / 132 g (NH4)2SO4) = 0.0500 moles (NH4)2SO4

b) The molar mass for Ca(OH)2 = 74.0 g/mole, calculated like (NH4)2SO4 above.

4.5 kg Ca(OH)2 x (1000 g / 1 kg) x (1 mole Ca(OH)2 / 74.0 g Ca(OH)2) = 60.8 moles Ca(OH)2

8 0
3 years ago
If atoms really conformed to the plum pudding model of the atom, what would the results of rutherford’s experiment have been?
Hitman42 [59]
Rutherford's experiment was done to prove Thompson's Plum Pudding Model. In this model, the protons and electrons are both inside the nucleus. The atoms is neutral because the charges cancel out. Rutherford's hypothesis was that, when a beam of cathode rays hits the gold foil, all the light should pass through. If the Plum Pudding model was correct, that would have been the result. However, it wasn't. 
6 0
3 years ago
Read 2 more answers
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