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3 years ago

How many reactants does the following equation have h2o → h2 + o2 A)1 B)2 C)3

Physics

1 answer:

emmasim [6.3K]3 years ago

3 0

<h3><u>Answer;</u></h3>

A) 1 (one)

<h3><u>Explanation;</u></h3>

Reactants are elements and/or compounds that are changed into other substances called products.
<u>The reactants are what you start with and the products are the result. In the chemical reaction equation the reactants are on the left and the products are on the right.</u>
In this case; <u>H2O is the only reactant</u>, while H2 and O2 are the products.

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A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of hydrogen. If a second sample of

GREYUIT [131]

Given:

Sample 1:

Chloroform is $CHCl_{3}$

12 g Carbon

1.01 g Hydrogen

106.4 g Cl

Sample 2:

30.0 g of Carbon

Solution:

mass of chloroform from sample 1:

12 + 1.01 +106.4 =119.41 g

Now, for the total mass of chloroform in sample 2:

mass of chloroform $\times$ $\frac{given mass of carbon}{mass of carbon atom}$

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3 years ago

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3 years ago

A 3.0 \Omega Ω resistor is connected in parallel to a 6.0 \Omega Ω resistor, and the combination is connected in series with a 4

GarryVolchara [31]

Answer:

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Explanation:

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the parallel resistors have a potential drop of Vparallel=4 volts.

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4 years ago

The outer layer of cable on a cable reel is 16.2 cm from the center of the reel. The reel is initially stationary and can rotate

ahrayia [7]

Answer:

B. w=12.68rad/s

C. α=3.52rad/s^2

Explanation:

We can solve this problem by taking into account that (as in the uniformly accelerated motion)

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to calculate the angular speed w we can use $\alpha=\frac{\omega _{f}-\omega _{i}}{t _{f}-t _{i}}\\\\\omega_{f}=\alpha t_{f}=(3.52\frac{rad}{s^2})(3.6)=12.68\frac{rad}{s}$

Thus, wf=12.68rad/s

C) We can use our result in B)

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I hope this is useful for you

regards

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3 years ago

Read 2 more answers

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4 years ago