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Masteriza [31]
3 years ago
6

PLEASE HELP ME.

Chemistry
2 answers:
vladimir2022 [97]3 years ago
8 0
I think the answer is b
Andrej [43]3 years ago
7 0
Velocity and speed both take into account the change is distance over time. But velocity also considers a body’s change in position—that is, velocity accounts for directionality, while speed does not. So, the correct answer here would be C.
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D Continental drift and b
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What are the advantages of using a computer over a graphing calculator
andrezito [222]
The answer to this question is:

The advantages of using a computer over a graphing calculator is the the "Computer larger amount of data" then the graphing calculator 

Hope this helped, Laffertytyler20
Your Welcome :)
5 0
3 years ago
Can someone help me with this science question asap
Bingel [31]

Answer:

it's the lighting

Explanation:

if you were to use a prism you will see the rainbow. the color black sucks up all colors white sucks up none. that why in the summer black it the hottest to ware and white is the best to wear and in the winter vise versa

3 0
3 years ago
PLSSS HEALP ASAP!!!! WILL REWARD
Liula [17]

A)1.75×3 moles of carbon monoxide

B)2:3

A)each mole of ferric oxide requires 3 moles of carbon monoxide. Therefore 1.75 moles requires 1.75 ×3 moles of carbon monoxide

6 0
2 years ago
At a certain temperature, Kc = 0.0500 and ∆H = +39.0 kJ for the reaction below, 2 MgCl2(s) + O2(g) → 2MgO(s) + Cl2(g) Calculate
Minchanka [31]

Explanation:

Since, it is shown that the reaction has been reversed. Therefore, value of K_{c} will become \frac{1}{K_{c}}.

Hence, new K_{c'} = \frac{1}{K_{c}}

                                      = \frac{1}{0.0500}

                                      = 20

Also, the number of moles of each reactant has been halved. So, K_{c''} for the reaction MgO(s) + \frac{1}{2}Cl2(g) → MgCl_{2}(s) + \frac{1}{2} O2(g) will also get halved.

Therefore,     K_{c''}  = K_{c'} = (20)^{0.5}

                               = 4.47

As the value of \Delta H is given as +39.0 kJ. So, it means that the reaction is endothermic in nature. So, energy of reactants will be more than the products. Hence, according to Le Chatelier's principle reaction will move in the forward direction.

As a result, K_{c} will also increase with increase in temperature.

6 0
3 years ago
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