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Rina8888 [55]
3 years ago
6

Why do orb webs hav non-sticky radius threads ?

Chemistry
1 answer:
Naily [24]3 years ago
6 0
Spider. Webs. BOOM CHICKEN SOUP.
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Given 2AL + 6HCL → 2ALCL3 + 3H2, how many grams of aluminum do I need to produce 11 L of hydrogen gas at STP?
Setler79 [48]

Mass of Aluminum= 8.829 g

<h3>Further explanation</h3>

Given

Reaction

2Al + 6HCl → 2AlCl₃ + 3H₂

Required

mass of Aluminum

Solution

At STP, 1 mol gas = 22.4 L

For 11 L of Hydrogen :

= 11 : 22.4

= 0.491

From equation, mol ratio Al : H₂ = 2 : 3, so mol Al :

= 2/3 x mol H₂

= 2/3 x 0.491

= 0.327

Mass Aluminum(Ar=27 g/mol) :

= 0.327 mol x 27 g/mol

= 8.829 g

3 0
2 years ago
An important and convenient aspect of the metric system is that volume is derived from the basic length measurement. which pair
horrorfan [7]

the metric system is that volume is derived from the basic length measurement

mL and cm^3

What is metric system?

A system of measurements is called the metric system. It is employed in calculations and research across the globe. Here are some instances of measurements made with the metric system:

  • The unit used to measure lengths and distances is the meter. In daily life, we use this unit to measure things like the length of a piece of clothing, the distance from school to home, etc.
  • You may have noticed that the bag of your favorite food has a weight listed on it. 250 grams of potato chips, as an illustration. The unit of weight used here is the gram.
  • Similar to this, the bottle of your preferred beverage has a volume indication (for example, 250 milliliters of cola). The unit of volume used here is the milliliter.

To learn more about metric system

brainly.com/question/25966695

#SPJ4

5 0
2 years ago
Which of the following molecules contains a polar covalent bond?
jek_recluse [69]

Answer:

ummm well you have to go to school I

5 0
2 years ago
How much energy is required to vaporize 2 kg of gold? Use the table below
Studentka2010 [4]

Answer:

48

Explanation:

8 0
2 years ago
Which statement best describes the process that the diagrams show?
TEA [102]

B. This looks like ice turning to water then to steam

7 0
3 years ago
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