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Katena32 [7]
2 years ago
8

Evaluate each scenario described to determine the direction of heat flow.

Chemistry
1 answer:
LuckyWell [14K]2 years ago
3 0

Answer: tap water to ice cube

Explanation:

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I need help plz ill give u Brainliest plzz i need help...Two students are discussing gravity. One student says that there is a g
DIA [1.3K]

Answer:

the first.

Explanation:

Newton's law of universal gravitation, in part, states that every particle attracts every other particle in the universe.

4 0
2 years ago
Petroleum is a mixture of hydrocarbons. It is separated into useful fractions by fractional distillation.
Hunter-Best [27]

Explanation:

Fractional distillation is used to separate crude oil into simpler, more useful mixtures . This method can be used because different hydrocarbons have different boiling points

Hope this help u

3 0
2 years ago
Consider the following elementary steps that make up the mechanism of a certain reaction: 3A→B+C B+2D→C+F Part A What is the ove
saveliy_v [14]

Answer:

A.    3A + 2D → 2C + F

B.    B is an intermediate

C.   rate = k[A]³

 D.  rate = k`[D]²

Explanation:

Part A

The overall reaction is the sum of all the elementary steps:

       3A→B+C

+

       B+2D→C+F

<u>                                         </u>

         3A + 2D → 2C + F

Part B

A reaction intermediate is one that participates in the elementary steps, but it is not a product. Notice B is produced in the first step and consumed in the second, therefore it is an intermediate species.

Part C

The rate law is  the product of the reaction constant, k, times the concentration of the reactants raised to the power of their coefficients in the balanced reaction assuming that it is the slow step in the reaction mechanism.

rate = k[A]³

Part D

Again as in part C:

rate = k [D]²  ( B is not included since as we saw it is an intermediate )

7 0
3 years ago
In the late 1800,expirements using cathode ray tubesled to the discovery of the
erastova [34]
Experiments with cathode ray tubes led to the discovery of the electron (electrons).

Or I think the t.v
6 0
3 years ago
What is the percent by volume of isopropyl alcohol in a solution that contains 45 ml of isopropyl alcohol in 1.4 L of water?
Leya [2.2K]

Hey there!

There are 1000 mL in a liter.

1.4 L + 0.045 L = 1.445 L

In total there is 1.445 L of the solution.

To find the percent of isopropyl alcohol, divide the amount of isopropyl alcohol by the total amount.

0.045 ÷ 1.445 = 0.0311

Convert to a percent.

3.11%

Hope this helps!  

3 0
2 years ago
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