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3 years ago

Which statement is correct with respect to gross primary productivity

1 answer:

8 0

Gross primary production and net primary production. Gross primary production is the amount of chemical energy as biomass that primary producers create in a given length of time.

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I need to find the orbit notation 1. Ne - 1s 2s 2p 3s 3p 4s 3d 4p 5s

weeeeeb [17]

Answer:

1s*2 2s*2 2p*6

Explanation:

atomic number of neon is 10 so the s-shell contains 2 electron and p-shell contains 6

3 0

3 years ago

What is the oxidation number of cl− in the hypochlorite ion clo−?

mariarad [96]

Answer : The oxidation number of chlorine (Cl) is, (+1)

Explanation :

Oxidation number : It represent the number of electrons lost or gained by the atoms of an element in a compound.

Oxidation numbers are generally written with the sign (+) and (-) first and then the magnitude.

When the atoms are present in their elemental state then the oxidation number will be zero.

Rules for Oxidation Numbers :

The oxidation number of a free element is always zero.

The oxidation number of a monatomic ion equals the charge of the ion.

The oxidation number of Hydrogen (H) is +1, but it is -1 in when combined with less electronegative elements.

The oxidation number of oxygen (O) in compounds is usually -2, but it is -1 in peroxides.

The oxidation number of a Group 1 element in a compound is +1.

The oxidation number of a Group 2 element in a compound is +2.

The oxidation number of a Group 17 element in a binary compound is -1.

The sum of the oxidation numbers of all of the atoms in a neutral compound is zero.

The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

The given compound is, $ClO^-$

Let the oxidation state of 'Cl' be, 'x'

$x+(-2)=-1\\\\x-2=-1\\\\x=+1$

Therefore, the oxidation number of chlorine (Cl) is, (+1)

5 0

3 years ago

The diameter of a red blood cell is about 3 × 10−4 in. What is its diameter in centimeters?

lesantik [10]

Answer:

1 in. =2.54 cm

3*(10^-4)*2.54=7.62*10^-4

Explanation:

8 0

3 years ago

Read 2 more answers

Can anyone help me with this since it is a quiz and I am really bad at chemistry!!

lord [1]

Answer:

Down below <3

Explanation:

1. 1 $N_{2}$ + 3 $H_{2}$ ---> 2 $NH_{3}$

2. 2 $KClO_{3}$ ---> 2 KCl + 3 $O_{2}$

3. 1 $Na_{3}PO_{4}$ + 3 HCl ---> _ 3_ NaCl + 1 $H_{3}PO_{4}$

4. 1 $C_{2}H_{6}O$ + 3 $O_{2}$ ---> 2 $CO_{2}$ + 3 $H_{2}O$

5 0

3 years ago

Which element would most likely be a shiny solid at room temperature and have a high density? Kr or Br Cu or F

yuradex [85]

Cu,it would most likely be a shiny solid at room temperature and have high density. •ω•

6 0

3 years ago