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3 years ago

Which best describes how to classify water?

Biology

2 answers:

Anastaziya [24]3 years ago

8 0

Answer:

b)It is a compound because it is made of a single kind of molecule.

Explanation:

expeople1 [14]3 years ago

7 0

Answer:

Explanation:

Water is a compound and scientifically known as H $_{2}$ 0 (2 hydrogen atoms and 1 oxygen). Therefore, the answer is...

Not A because water is not an element of one pure substance; rather, it is a compound and can be broken down into two pure substances.
Not B because the statement contradicts itself: a compound is made of different atoms and, thus, different molecules.
Not C because a mixture contains different substances that are physically -- not chemically -- combined. And as we know, water is a compound, which means that its atoms are chemically bonded to one another. Or else it would just be 2 free hydrogen atoms and 1 oxygen.
D (yay!) because it is not the *most* accurate, but simply the <em>best</em> description of those provided. Water can be described as a homogenous (uniform in appearance) mixture because, minus the "mixture" part, that's what it is, essentially: a substance that looks pure but is really made of up different molecules.

Ngl this was tricky, but I hope this helps :)

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The plaque (microbial biofilm) that forms between your teeth is a highly anaerobic (oxygen-free) environment, even though the mo

slavikrds [6]

Answer: The bacteria uses the oxygen present in the mouth.

Explanation:

The plaque that is formed in the teeth is a highly anaerobic bacteria but it can sustain in the environment rich in oxygen. The oxygen is used by the bacteria and there is a absence of oxygen in the teeth.

It is formed in between the teeth which needs oxygen to survive and if remains for tooth for a longer period of time then it began to grow without oxygen.

It basically uses the oxygen available in the mouth and makes the condition anaerobic.

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2 years ago

Whats 200 to the power of ten

jeyben [28]

Answer:

1.024e+23

Explanation:

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2 years ago

Example of factor isolating question

Digiron [165]

Answer:

The answer is below

Explanation:

Factor isolating question is a type of question often used by the researchers during a scientific study or social research which answers the question of what by isolating, categorizing, describing, or naming the situations accordingly.

For example:

What is the level of US Constitutional effectiveness in terms of

1. Public service holders performance

2. Civil servants performance

3. Private sectors

4. Effectiveness measured rate

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2 years ago

Substitutions, additions, or deletions of one or more nucleotides in the DNA molecule are called ___________.

vodomira [7]

I believe that the best answer for this question is "gene mutations." Gene mutations can either take place through nucleotide substitutions, which occur when the the sequence of nucleotides are altered. Frameshift mutations can also occur. They involve the insertion or deletion of a DNA molecule's bases. Hope this helps.

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2 years ago

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Why is it important for your heart to keep oxygen-rich blood separate from oxygen-poor blood?

DochEvi [55]

Your heart muscle needs its own supply of blood because, like the rest of your body, it needs oxygen and other nutrients to stay healthy. For this reason, your heart pumps oxygen-rich blood to its own muscle through your coronary arteries.

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3 years ago