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Murrr4er [49]
3 years ago
7

At each step, a dichotomous key involves how many choices

Chemistry
2 answers:
kvasek [131]3 years ago
8 0
Two, hope this helps
GaryK [48]3 years ago
6 0

Two is the correct answer :3


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Rr-<br> Bb-<br> rr-<br> Heterogeneous long nose-<br> PLEASE
alexdok [17]

Answer:

Rr.. eye shape

rr... oval

Bb ,,,, square pants

8 0
3 years ago
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A certain sample of a liquid has a mass of 42 grams and a volume of 35 centimeters3. What is the density of the liquid?
BabaBlast [244]

Answer:

            1.2 g.cm⁻³

Solution:

Data Given:

                             Mass  =  42 g

                             Volume  =  35 cm³

Formula Used:

                             Density  =  Mass ÷ Volume

Putting values,

                             Density  =  42 g ÷ 35 cm³

                             Density  =  1.2 g.cm⁻³

3 0
3 years ago
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How many electrons would Boron with a +2 charge have?
irina [24]

5 electrons

Boron atomic number 5 has five electrons in its ground state.

Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.

Explanation:

The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.

Boron number 5 has five protons and therefore as a neutral atom also has five electrons.

Boron has an electron configuration of

1s22s22p1

The most stable electron configuration for Boron is

1s2

+ 3 charges. By losing three electrons Boron can achieve the stable electron structure of Helium

Brainliest? :D

4 0
3 years ago
Describe where the "Reference Carbon" (the one that determines if the structure is D or L) is located in a carbohydrate with mor
tresset_1 [31]

Answer:

Farthest from the carbonyl carbon.

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Reference carbon that determined the absolute D and L configuration is located farthest from the carbonyl carbon.

In other words, reference carbon is that assymentric carbon which is located farthest from the carbolyl carbon and has configuration similar to D- or L-glyceraldehyde isomers.

D and L configuration is decided by the direction of -OH group attached to the reference carbon.

In L-isomer, -OH group is attached to the left side of the reference carbon and in D-isomer, -OH group is attached to the right side of the reference carbon.

5 0
3 years ago
Discussion: Bacteria vs. Virus
Maksim231197 [3]
Viruses always have a host to latch on. When latched on, viruses will inject its protein or RNA into the host.
Viruses aren’t considered organic.
Bacteria has a nucleus and cell membranes while viruses don’t
Viruses are not considered organic while bacteria are.
5 0
2 years ago
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