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babymother [125]
3 years ago
12

How many days the average menstrual cycle lastas

Chemistry
1 answer:
ICE Princess25 [194]3 years ago
5 0
A cycle is counted from the first day of 1 period to the first day of the next period. The average menstrual cycle is 28 days<span> long. Cycles can range anywhere from </span>21<span> to </span>35 days<span> in adults and from </span>21<span> to </span>45 days<span> in young teens.</span>
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? Match the states of matter to their properties. Drag the items on the left to the correct location on the right. solids Indefi
Fantom [35]

Answer:

Solids: definite shape and definite volume (highest density)

Liquid: indefinite shape and definite volume (glide past each other)

Gas: indefinite shape and indefinite volume (lowest density)

Explanation:

look at the answer

8 0
3 years ago
9. How many grams are in 2.0 x 105 molecules of carbon monoxide?
timama [110]

Answer: 9.3 x 10^ 18 g CO

Explanation:

Start by knowing that carbon monoxide is the compound CO. To convert molecules to grams, you first need to convert molecules to moles. This can be done using the conversion factor for Avogadro's Number:

(2.0 x 10^5 molecules CO) x 1 mol CO / 6.02 x 10^23 molecules CO

This cancels molecules CO.

Then, you can convert moles to grams, which is your desired quantity. You can find the number of grams for CO by looking at the periodic table and adding together their masses. C = 12 g and O = 16 g. Total of 28 g CO:

(1 mol CO) x 28 g CO / 1 mol CO

This cancels mol CO, which leaves grams CO.

5 0
2 years ago
6. Menthol is a member of the terpene family of natural products. It exists in a (1R, 2S, 5R) form and a (IS, 2R, 5S) form. Are
Usimov [2.4K]
Here ya go if you need the link we’re I found this answer key https://studylib.net/doc/8708211/exam-2---chemistry

5 0
2 years ago
What is NaHCO3 = Na2CO3 + H2O + CO2 as a balanced equation?
ollegr [7]
Balanced equation = 2 NaHCO3 —-> Na2CO3 + H2O + CO2

Can you mark me as brainliest?
8 0
2 years ago
Please help!! <br><br> Is this an:<br><br> Acid<br><br> Base <br><br> Neither
Liono4ka [1.6K]

Answer:

it is a weak acid

acid

Explanation:

formaldehyde is a weak acid (pK greater than 13),

3 0
1 year ago
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