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mixer [17]
3 years ago
6

What's the major difference between carbon and other group IV elements, excluding allotropy​

Chemistry
1 answer:
kogti [31]3 years ago
3 0

Answer:

Carbon has an ability of catenation which other group IV elements lack.

Explanation:

Catenation is the ability for an element to form multiple bonds with other elements leading rise to long chains of compounds.

An example is organic compounds.

.

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natural rubidium has the average mass of 85.4678 and is composed of isotopes 85 Rb(mass = 84.9117) and 87 Rb. The ratio of atoms
mote1985 [20]

Answer:

Mass of Rb-87 is 86.913 amu.

Explanation:

Given data:

Average mass of rubidium = 85.4678 amu

Mass of Rb-85 = 84.9117

Ratio of 85Rb/87Rb in natural rubidium = 2.591

Mass of Rb = ?

Solution:

The ration of both isotope is 2.591 to 1. Which means that for 2.591 atoms of Rb-85 there is one Rb-87.

For 100% naturally occurring Rb = 2.591 + 1 = 3.591

% abundance of Rb-85 = 2.591/ 3.591 = 0.722

% abundance of Rb-87 = 1 - 0.722= 0.278

84.9117 × 0.722 + X × 0.278 = 85.4678

61.306 + X × 0.278 = 85.4678

X × 0.278 = 85.4678 - 61.306

X × 0.278 = 24.1618

X =  24.1618 / 0.278

X = 86.913 amu

8 0
3 years ago
PLEASE HELP ASAP I will mark brainliest
anyanavicka [17]

Answer:

Please explain the question nicely first

6 0
2 years ago
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The symbol Ag stands for which element?
Sergeeva-Olga [200]

Answer:

Silver

Explanation:

I remember this because Ag can mean "Ain't Gold"

5 0
3 years ago
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What causes water to become denser when it is carried to the poles by surface currents? increased temperature and increased sali
Anarel [89]

Answer:

The answer is decreased temperature and increased salinity

Explanation:

It is what is known as the thermohaline circulation

The thermohaline circulation moves the water slowly. This water moves mainly due to differences in its relative density. Much denser water sinks over water that is less dense. Two factors impact the density of seawater: temperature and salinity.

Cold water is denser than hot water:

-Water cools when it loses heat, it occurs at high latitudes.

-Water is heated when it receives energy from the sun, at low latitudes.

Saltier water is much denser than water that has less salt:

-Sea water becomes salty if the evaporation rate increases.

-Sea water becomes less salty if there is a water inlet over the sea.

3 0
3 years ago
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What are sister chromatids?
kogti [31]
The female part of the chromosomes, usually colored pink in diagrams
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