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Arisa [49]
3 years ago
15

A student fills two identical beakers with the sane volumeof water.The student places one beaker in a freezerand the other beake

r on a hot plate.After 5 minutes the students observes that the temperture of the waterin the freezer is 19 degrees C and the tempertureof the water on the hot plate is 42 degrees C. Which statementbest describes the relationship between the two veakers of water and the freezing and boiling points of water. Answer
Chemistry
1 answer:
makkiz [27]3 years ago
8 0

Answer: 69

thats the answer lol

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What is the correct ionic formula when mg2+ and p3− react?
Mumz [18]

Answer: Ionic formula will be Mg_3P_2.

Explanation: Mg^{2+} and P^{3-} ions will form a ionic compound. Ionic compounds have both metals and non-metals.

Here Mg^{2+} is a metal and P^{3-} is a non-metal.

The net charge on any compound must be 0.

So we need 2 phosphate ions to balance the charge on Mg^{2+} ions. Similarly we need 3 Magnesium ions to balance the charge on P^{3-} ions.

Criss-crossing the charges, we will get the formula as Mg_3P_2

Criss-crossing is shown in the image below.

6 0
4 years ago
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Which direction will the following reaction (in a 5.0 L flask) proceed if the pressure of CO_2(g) is 1.0 atm? CaCO_3(s) rightarr
storchak [24]

Answer:

d. To the left because Q > K_p

Explanation:

Hello,

In this case, for the given reaction:

CaCO_3(s) \rightarrow CaO(s) + CO_2(g)

The pressure-based equilibrium expression is:

Kp=p_{CO_2}

In such a way, since Kp is given we rather compute the reaction quotient at the specificed pressure of carbon dioxide as shown below:

Q=p_{CO2}=1.0

Therefore, since Q>Kp we can see that there are more products than reactants, which means that the reaction must shift leftwards towards the reactants in order to reestablish equilibrium, thus, answer is d. To the left because Q > Kp.

Regards.

6 0
3 years ago
What is catalyst? Write its types.​
Step2247 [10]

Answer:

A catalyst is a chemical substance that alters the rate of chemical reaction not consumed by the reaction. Hence, a catalyst can be recovered chen unchanged at the ends of chemical reaction. Catalyst can be divided into two typ the basis whether it speeds up or slowdowns the rate of chemical reaction. The positive catalyst and negative catalyst.

5 0
3 years ago
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Phosphorus will ____ electrons to complete its octet changing into an ____
Paraphin [41]
Steal; Anion
This is the answer because phosphorous is very electronegative.
3 0
3 years ago
Which of the following is a true statement?
maria [59]

Answer:

the second one seems right :)

Explanation:

3 0
3 years ago
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