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pishuonlain [190]
2 years ago
11

The process of photosynthesis is essential in the oxygen/carbon dioxide cycle. Photosynthesis removes ______ from the atmosphere

and produces and releases ______ into the atmosphere.
A) glucose, oxygen
B) oxygen, glucose
C) carbon dioxide, oxygen
D) oxygen, carbon dioxide
Chemistry
2 answers:
ioda2 years ago
6 0
Photosynthesis removes carbon dioxide from the atmosphere and releases oxygen into the atmosphere. The answer is C. 
Alika [10]2 years ago
3 0
C) Carbon dioxide is removed and Oxygen is produced and released.
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[Rn] 7s25f6d4<br> Which element is denoted
Colt1911 [192]

Answer:

Explanation:

[Rn] 7s25f6d4

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4 0
3 years ago
The element in Group 14 Period 4 has how many neutrons and is it a metal, nonmetal, metalloid or noble gas.
monitta

Number of neutrons=41, and it is metalloid

<h3>Further explanation</h3>

Group 14⇒valence electron = 4(ns²np²)

Period 4⇒n=4

So electron configuration of the element :

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p² = 32 electron=atomic number

The element with atomic number 32, which is in period 4 and group 14 is Ge-Germanium

There are seven elements that can be classified as metalloids, namely boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), and polonium (Po).

While the mass number: 73

So the number of neutrons = mass number-atomic number

\tt 73-32=41

8 0
2 years ago
A 100g sample of Carbon-14 has a half-life of 5 years. How much Carbon-14 is left after 10 years?
attashe74 [19]

Answer: The amount of carbon-14 left after 10 years is 25 g

Explanation:

Formula used :

a=\frac{a_o}{2^n}

where,

a = amount of reactant left after n-half lives = ?

a_o = Initial amount of the reactant = 100 g

n = number of half lives =\frac{\text {given time}}{\text {half life}}=\frac{10}{5}=2

Putting values in above equation, we get:

a=\frac{100g}{2^2}

a=\frac{100g}{4}=25g

Therefore, the amount of carbon-14 left after 10 years is 25 g

6 0
3 years ago
13. which of the following states of matter has no definite shape but does have a fixed volume? a. liquid b. solid c. gas d. ele
lutik1710 [3]
Gas im pretty sure. if not gas then liquid 
5 0
2 years ago
Is carbon monoxide covalent or ionic?
Talja [164]
Covalent since they are both non metals, a metal and a non metal make an ionic bond
7 0
3 years ago
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