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densk [106]
3 years ago
9

What did you observe happening in the cups?

Chemistry
2 answers:
zhannawk [14.2K]3 years ago
6 0
I think it gets foggy in the cup i think but good luck!!
Leya [2.2K]3 years ago
5 0
A phase change will occur , it will first become blurry due to water vapour evaporating and cool down to tiny water droplets when coming in contact with the plastic cup ( hope im right , its been awhile! )
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1. You are pushing a heavy shopping cart full of water bottles with a constant force. The shopping cart has
jarptica [38.1K]

Answer:

F = 50 N

Explanation:

Given data:

Mass of car = 250 Kg

Acceleration of car = 0.20 m/s²

Force required = ?

Solution:

Formula:

F = m×a

F = applied  force

m = mass

a = acceleration

Now we will put the values in formula.

F =  250 Kg × 0.20 m/s²

F = 50 Kg.m/s²

Kg.m/s² = N

F = 50 N

3 0
3 years ago
Name at least two benefits of using models in science
STatiana [176]

Answer:

Viewing systems from multiple perspectives.

Discovering causes and effects using model tractability.

Improving system understanding through visual analysis.

Explanation:

Got this from google, lol. But, I put three here just in case you could get extra credit for more than two.

3 0
3 years ago
Read 2 more answers
The polar jet stream is an air current that flows across North America. It flows much faster in winter than it does in summer. W
krok68 [10]

Answer:

c

Explanation:

7 0
3 years ago
Someone answer this please...
boyakko [2]

Answer:

120 mol Mg

General Formulas and Concepts:

<u>Chemistry - Stoichiometry</u>

  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

120 moles H₂

<u>Step 2: Identify Conversions</u>

RxN:   3 mol H₂ = 3 mol Mg

<u>Step 3: Stoichiometry</u>

<u />120 \ mol \ H_2(\frac{3 \ mol \ Mg}{3 \ mol \ H_2} ) = 120 mol Mg

7 0
3 years ago
Read 2 more answers
Show the alkyl bromide and alcohol used to make methyl t-butyl ether using the Williamson ether synthesis to the right of the re
Korolek [52]

Answer:

Hi

Williamson's ether reactions imply that an alkoxide reacts with a primary haloalkane. Alkoxides consisting of the conjugate base of an alcohol and are formed by a group R attached to an oxygen atom. They are often written as RO–, where R is the organic substituent (Step 1).

Sn2 reactions are characterized by the reversal of stereochemistry at the site of the leaving group. Williamson's synthesis is no exception and the reaction is initiated by the subsequent attack of the nucleophile. This requires that the nucleophile and electrophile be in anti-configuration (Step 2).

As an example (figure 3).

In the attached file are each of the steps of Williamson's synthesis.

Explanation:

Download docx
4 0
3 years ago
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