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nlexa [21]
3 years ago
7

PLZZZZ HELP ME!!!!!!!!!!! will give brainliest and 20 points why is pinball used to describe the steps in the scientific process

?
Chemistry
1 answer:
ozzi3 years ago
8 0
Well, I'm not completely sure, but, I'm going to try and help you: First, you would need to observe the machine, which, would represent the first step. Secondly, you would have to ask yourself a question, when the ball shoots out, which way are you going to hit it? Next, you'd have to hypothesize, which way the ball will come, which way will give you the most points. etc, etc. Then, you'd make a prediction based on your hypothesis, predict the direction that will give you the most points, and which way the ball will fall. Now, when the ball shoots out, you'd gave to test your prediction, then you'd see if your hypothesis was correct. Lastly, you would iterate, and, come up with new hypotheses, and, predictions, for when you play on round two, this would, also, help you get better at the game, just as, when you perform other scientific experiments, you would have a better idea on what would happen during them. I hope this helps!!!
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Consider five hypothetical main- group elements, E, G,J,L, and M, that have the outer electron configuration shown below
rewona [7]
The answer is A is iron
6 0
3 years ago
A hydrate of zinc chlorate, Zn(CIO3)2·XH20, contains 21.5% zinc by mass. Find the value of X.
butalik [34]

Answer:

What I've done:

Molar mass of Zn: 65.409 g/mol

Molar mass of Cl: 2*35.453 =70.906 g/mol

Molar mass of O: 6*15.9994 =95.9964 g/mol

Total molar mass of Zn(ClO3)2: 232.3114 g/mol

21% of molar mass = 232.3114 g/mol

100% of mass = 1106.244762 g/mol

Molar mass of H2O: 18.01528 g/mol

232.3114 g/mol + 18.01528 g/mol = 250.32668 g/mol

250.32668 = 1106.244762

1106.244762 g/mol divided by 232.3114 g/mol

x = 4.419

Explanation:

% anything = (g/total mass)*100 = ?

Atomic mass Zn = 65.4 from your post.

molar mass Zn(ClO3)2 from your post = 232.3

molar mass H2O = 18

The 21.5% Zn is (note you used 21%) percent Zn in the hydrate so

%Zn = [(65.4)/(232.3 + x*18)]*100 = 21.5%

Solve for x and I obtained 3.99 which rounds to 4.00. Let me know if you don't understand any part.

3 0
4 years ago
Which describe a molecules (select all that apply)a) It can be two or more of the same elements combine together.b) It can be th
kenny6666 [7]

combinedAnswer

It can be two or more of the same elements combine together

It can be two or more different elements combined

Step-by-step explanation:

A molecule is a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

A molecule can also be two or more different elements combined.

7 0
2 years ago
Hydrogen chloride and oxygen react to form chlorine and water, like this:
leva [86]

Answer:

Kp = (Partial pressure H₂O) . (Partial Pressure Cl₂)² / Partial pressure O₂ . (Partial Pressure HCl)⁴

Explanation:

This is the reaction:

4 HCl (g) + O₂ (g)  ⇒ 2 Cl₂ (g)  + 2 H₂O(g)

Kp = (Partial pressure H₂O) . (Partial Pressure Cl₂)² / Partial pressure O₂ . (Partial Pressure HCl)⁴

8 0
4 years ago
Read 2 more answers
Which of the following is the correct definition of convection?
kvv77 [185]

Answer: A. the transfer of heat by currents

Explanation: There are three modes of heat transfer:

1) Conduction: This type of heat transfer happens when there is direct contact between the two object.  Example: heating a pan on stove.

2) Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents. Example: Heating of swimming pool.

3) Radiation: This type of heat transfer happens when there is direct transfer of energy through space. Example: Heating of earth's surface.

B. The transmission of heat across matter is conduction.

C. The electromagnetic radiation from the surface of an object which is due to the object's temperature is radiation.

D. The transmission of heat across empty space is radiation.

3 0
3 years ago
Read 2 more answers
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