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Arte-miy333 [17]
3 years ago
10

Which of the following questions is most testable through a scientific experimentation

Chemistry
1 answer:
qaws [65]3 years ago
3 0
Question A is more testable through a scientific experiment because you have a specific thing you are trying to find out, "which gelatin takes longer to set".
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Explain whether nitrogen atoms will form bonds with other atoms.
Stells [14]
Nitrogen  can make   bonds with other atoms.. Typically though it only makes 3 bonds, so it fills its octet.
4 0
3 years ago
Caffeine, a stimulant found in coffee and soda, has the following elemental composition: 49.48% carbon, 5.19% hydrogen, 16.48% o
prisoha [69]

Answer:

Explanation:

C = 49.48

H = 5.19

O = 16.48

N = 28.85

ratio of moles

= 49.48 / 12 : 5.19 / 1 : 16.48 / 16 : 28.85 / 14

= 4.123 : 5.19 : 1.03 : 2.06

= 4 : 5 : 1 : 2

so the empirical formula = C₄ H₅O N₂

Let molecular formula = (  C₄ H₅ON₂ )ₙ ,

n ( 48 + 5 + 16 + 28 ) = 119.19

97 n = 194.19

n = 2 ( approx )

molecular formula = C₈ H₁₀O₂ N₄

3 0
3 years ago
Which of the following statements applies to all states of matter? A. Matter takes the shape of its container. B, Matter is made
Marina86 [1]
D

A describes liquid, b describes solid, and c describes solid as well. therefore d is the only good answer
7 0
3 years ago
Is a diamond a homogeneous or heterogeneous mixture or a substance
DerKrebs [107]

Answer:

heterogeneous

Explanation:

It's a heterogeneous mixture. Diamond is made of just one element: carbon. Each carbon atom in diamond is connected to four other carbon atoms, in a crystal that extends on and on. There are other forms of pure carbon where the atoms are bonded differently, notably charcoal and graphite.

5 0
3 years ago
What types of mixtures are these? a cup of tea and sugar peanuts and almonds mixed together in a bowl a bucket full of sand and
Allushta [10]

Answer:

The answer to your question is below

Explanation:

There are two kinds of mixtures

- Homogeneous is a mixture of two or more elements or compounds and its components can not be distinguished visually.

- Heterogeneous is a mixture of two or more elements or compounds and its components can be distinguished visually.

a cup of tea and sugar homogeneous

peanuts and almonds mixed together in a bowl heterogeneous

a bucket full of sand and gravel heterogeneous

food coloring dissolved in water homogeneous

3 0
3 years ago
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