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babymother [125]
2 years ago
12

1) Look at the graph. What is the independent variable and the dependent variable?

Chemistry
1 answer:
Xelga [282]2 years ago
5 0

Answer:

Independent Variable = Years

Dependent Variable = Number of Mobiles phone owners

Explanation:

Independent variables are plotted on x-axis and the dependent variables are plotted on y-axis.

In given graph the "Years" belong to x-axis hence, years are the independent variables.

Also, "Number of Mobile phones owners" belong to y-axis hence, this number is the dependent variable.

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a solution must be at a higher temperature than a pure solvent to boil. what colligative property can be employed to achieve thi
Kazeer [188]

Boiling-point elavation.

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3 years ago
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Silicon has 2 isotopes, Silicon-28 with an abundance of 90% and Silicon-30 with an abundance of 10%. Find the AAM for Silicon.
JulsSmile [24]

Answer:

RAM

RAM = (mass \: of \:  ^{28} Si \:  \times \%abundance) + (mass \: of \:  ^{30} Si \:  \times \%abundance) \\ RAM = (28 \times 90\%) + (30 \times 10\%) \\ RAM = 25.2 + 3 \\ RAM = 28.2

5 0
3 years ago
One isotope of a metallic element has the mass number 63 and 33 neutrons in the nucleus. The cation derived from the isotope has
katen-ka-za [31]

Given

Mass number of isotope = 63

Number of neutrons = 33

So number of protons = 63 - 33 = 30

Hence atomic number of metal = 30

thus metal is = zinc

now as it is forming cation with 28 electrons it means it has lost two electrons so it must have a dipositive charge

the symbol of metal ion will be

Zn^+2

7 0
3 years ago
How do solute concentrations affect the rate of osmosis within the cell?
igor_vitrenko [27]

Answer:

Image result for How do solute concentrations affect the rate of osmosis within the cell?

Concentration gradient - The movement of osmosis is affected by the concentration gradient; the lower the concentration of the solute within a solvent, the faster osmosis will occur in that solvent.

I think this is it^^^

Explanation:

7 0
3 years ago
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq). Solubility Rules are found here.
wel
<span>In ionic equations, the chemicals are written as the ions which are dissolved in water.
 
AgNO</span>₃<span>(aq) reacts with K</span>₂<span>SO</span>₄<span>(aq) and produces Ag</span>₂<span>SO</span>₄<span>(s) and KNO</span>₃<span>(aq). The balanced complete ionic reaction is
2Ag</span>⁺<span>(aq) + NO</span>₃⁻<span>(aq) +2K</span>⁺<span>(aq) + SO</span>₄²⁻<span>(aq) → Ag</span>₂<span>SO</span>₄<span>(s) +2K</span>⁺<span>(aq) + NO</span>₃⁻<span>(aq)
 
K</span>⁺<span>(aq) and NO</span>₃⁻<span>(aq) present in both sides. Hence, we can cut off them to find net ionic equation. So, net ionic equation is
2Ag⁺(aq) + SO₄</span>²⁻<span>(aq) → Ag₂SO₄(s)</span>
4 0
4 years ago
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