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taurus [48]
3 years ago
5

3. High-density polyethylene is made by polymerizing which starting molecule?

Chemistry
1 answer:
bezimeni [28]3 years ago
6 0
D.(think it’s spelled Ethylene)
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Do chemical equations with no reaction still have to be balanced
dangina [55]

Answer:

The same number of atoms of each element must appear on both sides of a chemical equation. However, simply writing down the chemical formulas of reactants and products does not always result in equal numbers of atoms. You have to balance the equation to make the number of atoms equal on each side of an equation.

Explanation:

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The ________ of an adult male is 750 newtons.
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The average weight of an adult male is 750 newtons. In computing for weight in newtons. W = ma; where m = weight in kilograms and a = acceleration due to gravity which is equal to 9.81 m/sec2. 
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3 years ago
A baker has two identical cakes except that one cake is hot, and the other cake is room temperature. He places both cakes on an
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the plate gets warmer and the cake gets colder

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4 0
3 years ago
Fill in the blanks:
Misha Larkins [42]

Answer:

1. smaller. 2. smaller. 3. greater

Explanation:

1. H−O−H angle is 104.45  and H−C−H angle is 109.5

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3. The F−S−F bond angle in SF₆ is 90 and F−Br−F bond angle in BrF₅ is 84.8

8 0
3 years ago
What mass of agno3 can be dissolved in 250g of water at 20°c?
Mice21 [21]
Hello there,

You should know the <span>solubility of AgNO3 in water at 20°C equals to 2220 g/L.

So we can say that in 1 L of water, 2220 g of AgNO3 can be dissolve.

Now you should know 1L = 1000g.

Which means 1000 g of water can dissolve 2220 g of AgNO3.

Therefore :

</span>250 g<span> --> x
1000 g --> 2220 g

So : </span>x = \frac{250*2220}{1000} =  \frac{555000}{1000}= 555g.

In short, 555g of AgNO3 can be dissolved in 250g of water at 20°C.

Hope this helps !

Photon
4 0
3 years ago
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