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3 years ago

Pls help!! this is a test and I don’t understand this bs

Chemistry

1 answer:

postnew [5]3 years ago

6 0

Male chromosome is XY. Female is XX. Answer A is XX, answer B is XY, the child will be a male. Father passes down the chromosome.

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Arrange the substances in the table from the MOST to the LEAST ordered particle arrangement

quester [9]

Wood, Water, and Neon Gas, because the wood is more of a solid its particles are tightly arranged and water next because it takes the shape of the container it is in and then the neon gas because with a gas the particles are not at all arranged

7 0

3 years ago

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Select the pair that has the larger atom or ion listed first.

Sedbober [7]

Answer:

Correc option: $Br^- \, , Kr$

Explanation:

size of atom : it says somthing about how many shell present in a particular atom or ion and it can also be evaluated on the basis of radius of atom.

Br^- and Kr has highest number of shell as compared to other group of species .

Na ,S , Mg ,P all are from 3rd period but Kr and Br^- in the 4th period so size of species of this group will more,

Size increases on increasring the shell number

3 0

4 years ago

in dimesional analysis, if an electric vehicle gets 4 miles/ kWh and the utility company charges 12 cents per kWh for charging i

Ivanshal [37]

Answer:

The cost of driving this car is 33.33 miles per dollar.

Explanation:

Distance covered in 1 kilo watt-hour = 4 miles/kWh

Utility company charges = 12 cents/kWh

The cost of driving this car in miles per cents:

$\frac{ 4 miles/kWh}{12 cents/kWh}=\frac{1 miles}{3 cents}$

1 cents = 0.01$

The cost of driving this car in miles per dollars:

$\frac{1}{3} miles/cent=\frac{1 miles}{3\times 0.01\$}=33.33 miles/\$$

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3 years ago

1. The sodium-iodide symporter plays a role in the accumulation of iodide in the thyroid gland. Here, one iodide gets converted

Serggg [28]

Answer:(1) 6 sodium ions

(2)The movement of iodide ions occurs in the same direction as the sodium ions.

Explanation: Sodium-iodide symporter actively transports 2 sodium ions together with one iodide ions across the basement membrane into the thyroid follicular cells.(therefore for production of a single molecule of T3 3×2=6 sodium ions)This system utilises the concentration of sodium ions so that iodide ions can move against its concentration gradient.

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3 years ago

A GFCI is an example of what kind of electrical safety device?

vichka [17]

Answer:

Circuit breaker.

Explanation:

3 0

3 years ago

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