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BartSMP [9]
3 years ago
7

Please write thoughtful, concise summaries of your findings in paragraph form. Include key calculation values and point out what

those values mean for the specific energy technology. 39 POINTSSSSS
Chemistry
1 answer:
dedylja [7]3 years ago
7 0
I am not sure how to do this
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Two samples of gold that have different temperatures are placed in contact with one another. Heat will flow spontaneously from a
galina1969 [7]
It is 50. This is because heat goes from higher temperatures to lower and nothing else in the options is lower.
7 0
3 years ago
Read 2 more answers
Coal, which is primarily carbon, can be converted to natural gas, primarily CH4, by the following exothermic reaction: C(s)+2H2(
LuckyWell [14K]

Answer:

A. The reaction will proceed forward forming more CH4

B. The reaction will proceed forward forming more CH4

C. Since the reaction is exothermic, raising the temperature will cause the reaction to proceed backward, thus forming C and H2.

D. Lowering the volume makes the gas particles to be more close together thereby enhancing their collisions leading to reaction. Therefore the reaction will proceed forward forming more CH4

E. Catalyst only reduce the activation energy so the reaction can proceed faster. The reaction will proceed forward forming.

F. The following will favour CH4 at equilibrium

i. Catalyst to the reaction mixture,

ii. Both adding more H2 to the reaction mixture and lowering the volume of the reaction mixture

iii. Adding more C to the reaction mixture.

4 0
3 years ago
How many moles are 7.25 x 1023 formula units of Mgo ?
romanna [79]

Answer:

<h2>The answer is option D</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.25 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{7.25}{6.02}  \\  = 1.2043189368...

We have the final answer as

<h3>1.20 moles</h3>

Hope this helps you

6 0
2 years ago
Hich of the following is an oxidation-reduction reaction?
KiRa [710]

The oxidation-reduction reaction from the reactions above is

ZnS(s) + 2O2(g) ------ ZnSO4(s)

<h3>What is redox reactions?</h3>

Oxidation-reduction or redox reaction is the type of chemical reaction in which oxidation states of substrate changes

So therefore, the oxidation-reduction reaction from the reactions above is

ZnS(s) + 2O2(g) ------ ZnSO4(s)

Learn more about oxidation-reduction reactions:

brainly.com/question/10668495

#SPJ1

6 0
1 year ago
All alkali earth metals have the same reactivity with water. True or False
zheka24 [161]
True.  Water is a neutral substance so nothing should react to it, this makes it so that no matter how basic a metal is, it reacts the same to water.
4 0
3 years ago
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