CHEMISTRY HIGH SCHOOL

If you eat foods that are compact and _______, more can fit into your stomach with less discomfort.A. dense
B. dry
C. puffed
D. tasty

Answers

Answer 1
Answer:
The answer my friend is dense and here is why if you compact dense food it becomes even more flat and there is more room for food.
Answer 2
Answer:

Answer:

A. dense

Explanation:

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Why is a molecule of CO2 nonpolar even though the bonds between the carbon atom and the oxygen atoms are polar?(1) The shape of the CO2 molecule is symmetrical.
(2) The shape of the CO2 molecule is asymmetrical.
(3) The CO2 molecule has a deficiency of electrons.
(4) The CO2 molecule has an excess of electrons.

Answers

The correct answer is option 1. Carbon dioxide is nonpolar because the shape of the molecule  is symmetrical. It is a linear molecule where the oxygen atoms are symmetrical on each end. CO2 molecule do not have a region of unequal sharing.

25 Which of the following is a correct statement describing photosynthesis?

Plants make glucose and oxygen by taking in carbon dioxide and water.
Plants take in oxygen and carbon dioxide to make glucose and water.
Plants take in oxygen and water to make carbon dioxide and glucose.
Plants take in glucose and carbon dioxide to make water and oxygen.

26

Under what condition will a marshmallow and a rock fall at the same speed?

In the water
The marshmallow must be thrown down with greater force
This can never happen, because of the different masses
In a vacuum

27

Which of the following would exert about 1000 Newtons of force?

A baby
A large man
A safety pin
A dump truck

Answers

25: A) Plants make glucose and oxygen by taking in carbon dioxide and water. 
26: D) In a vacuum
27: B) A large man (1000 newtons is approximately 224 lbs of force)

What else is produced when sodium carbonate decomposes? Na2CO3 Na2O +

Answers

Na2CO3 Na2O +CO2   CO2 is the answer

When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.

The chemical symbol for sodium carbonate is Na_2CO_3.

The decomposition of sodium carbonate is:

Na_2CO_3\rightarrow Na_2O+ CO_2

The decomposition of sodium bicarbonate, Na_2CO_3 will result in the formation of sodium oxide, Na_2O and carbon dioxide, CO_2.

Hence, carbon dioxide, CO_2 will produce with sodium oxide, Na_2O on decomposition of Na_2CO_3.

Which aqueous solution will cause the bulb to light?

Answers

LiOH(aq)

Hope this helps :)

The molar heat of fusion of gold is 12.550 kJ mol–1. At its melting point, how much mass of melted gold must solidify to release 235.0 kJ of energy?

Answers

The total heat released, Q, equals number of moles, n, times molar heat of fussion, Hf. this is: Q = n * Hf. You kno Q and Hf, so you can find n as n = Q/Hf = 235.0 kJ / 12.55 kJ/mol = 18.72 mol. Now you can pass that to mass using the atomic mass of Au, which is 197 g/mol => mass = 18.73 mol * 197 g/mol = 3688.9 grams.

Answer:

the answer is d.

Explanation:

Excuse me while I go kill Thanos.

Which of the following products is petroleum based? A) steel B) maglev C) plastic D) iron E) Internet

Answers

The product that is petroleum based is the plastic. The answer is letter B. Steel, iron and maglev are metals derived from coals. Internet is also not a petroleum based product

petroleum based is materiel's that contains different kinds of oil and fuel. "which are used in chemical processes to produce plastics".
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