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kipiarov [429]
3 years ago
7

You are comparing a reaction that produces a chemical change and one that produces a physical change. What evidence could you us

e to dertimine which type of change is
occurring?
Biology
1 answer:
Zina [86]3 years ago
8 0

Answer:

To understand the physical change and chemical change, one needs to know what is physical properties and what is the chemical properties of a substance.

Physical property is characteristic or trait of a substance that can be observed without converting the substance to a new substance. If there is any type of change in these physical properties like changing the appearance or form of matter and does not make a new substance, takes place it is called physical change.

A chemical change is a change in the matter of a substance that creates one or more new substances. This type of change includes the formation, color, of a precipitate, change in texture, and many other changes.

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What subatomic particles make up the nucleus of an atom? Check all that apply.
irina [24]

Answer:

• neutrons

• protons

Explanation:

The nucleus is made up of two types of subatomic particles, that is the protons and neutrons.

5 0
2 years ago
Match the following respiratory conditions to the
dimaraw [331]

Answer:

Emphysema ;A condition often caused by smoking,

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Explanation:

I hope it helps :)

8 0
3 years ago
Which food molecule (monosaccharide, polysaccharide, lipid, or protein) would you eat if...
torisob [31]
<span>You needed a quick boost of energy - MONOSACCHARIDE

You wanted to grow strong nails, you haven't eaten in days - PROTEIN

You wanted to grow healthy hair - PROTEIN

You had a race tomorrow afternoon - POLYSACCHARIDE 

You were getting ready for hibernation - LIPIDS

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Your meal will be in a week - LIPIDS

CARBOHYDRATES include monosaccharide and polysaccharides. They provide immediate energy boost or short term energy storage for animals as well as long term energy storage for plants. 

PROTEIN s</span>peeds up chemical reactions by lowering activation energy. It is used to form bones and build muscles. It is m<span>ade up of an amino group, a carboxyl group, and an R group.

LIPIDS can be saturated or unsaturated fatty acids. They are not soluble in water however they provide long-term energy storage for animals. </span>
7 0
3 years ago
Which water cycle processes usually cause a lowering in the water table? Which processes cause a rise?
olga55 [171]

Answer:

During the summer months, the water table tends to fall, due in part to plants taking up water from the soil surface before it can reach the water table. The water table level is also influenced by human extraction of groundwater using wells; groundwater is pumped out for drinking water and to irrigate farmland.

Explanation:

7 0
2 years ago
Read 2 more answers
Explain the relationship between the second law of thermodynamics and the net energy of an
Anton [14]

Answer:

The Second Law of Thermodynamics is about the quality of energy. It states that as energy is transferred or transformed, more and more of it is wasted. The Second Law also states that there is a natural tendency of any isolated system to degenerate into a more disordered state

is that helpful?

4 0
2 years ago
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