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Alex787 [66]
3 years ago
8

1. Heat transfer takes place when:

Chemistry
1 answer:
Flauer [41]3 years ago
7 0

Answer:

A

C

A

Explanation:

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WILL MARK BRAINLIEST! PLEASE HELP!!
sergeinik [125]

Answer:Concrete is a heterogeneous mixture of an aggregate: cement, and water.

Sugar and sand form a heterogeneous mixture. If you look closely, you can identify tiny sugar crystals and particles of sand.

Ice cubes in cola form a heterogeneous mixture. The ice and soda are in two distinct phases of matter (solid and liquid).

Salt and pepper form a heterogeneous mixture.

Chocolate chip cookies are a heterogeneous mixture. If you take a bite from a cookie, you may not get the same number of chips as you get in another bite.

*Soda is considered a heterogeneous mixture. It contains water, sugar, and carbon dioxide, which forms bubbles. While the sugar, water, and flavorings may form a chemical solution, the carbon dioxide bubbles are not uniformly distributed throughout the liquid.

An example of homogenization is homogenized milk, which is processed so that the milk components are stable and don't separate.

In contrast, natural milk, while it might appear homogeneous when shaken, isn't stable and readily separates into different layers.

I hope that helped!

8 0
3 years ago
which of the following is true about cations?a. They are negatively charged and move toward an anodeb. They are negatively charg
cupoosta [38]

ANSWER

They are positively charged and move toward an anode

Option C

EXPLANATION

In electrochemical reaction, cation are positively charged. Since they are positively charged, they move toward negatively charged anode

There are two types of reaction which are oxidation and reduction reaction. At oxidation, the positively charged cations move towards the negatively charged anode.

Recall, that like charges attract and unlike charges repel.

Therefore, the correct answer is option C

8 0
1 year ago
If velocity is positive, which would most likely yield a negative acceleration?
Viktor [21]

Answer: An initial velocity

Explanation:

5 0
3 years ago
Read 2 more answers
I need help with with number 1515. How many moles of NO2 are in a 37.058 L container at 101.28 kPa and -139.86
Andre45 [30]

Explanation:

To solve this question, we will use the Clayperon Equation:

P.V = n.R.T

where:

P = 101.28 kPa

1 atm = 101,325 Pa

x atm = 101,280 Pa

x = 1 atm

V = 37.058 L

n = we don't know

R = 0.082 atm.L/K.mol

T = -139.88 ºC = -139.88+273.15 = 133.27 K

1*37.058 = n*0.082*133.27

n = 0.29 moles

Answer: 0.29 moles

5 0
11 months ago
The atomic number of arsenic is 33 what is the electron configuration
rjkz [21]
It is really easy if you look up an electron configuration table (one that looks like a periodic table) and then just go down the rows left to right, top to bottom, and just stop when you get to where the element is on the table.

 1s^2 2s^2 2p^{6}  3s^2 3p^6 4s^2 3d^1^0 4p^3
8 0
3 years ago
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