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3 years ago

6

Which has the largest atomic size selenium or oxygen?

1 answer:

kolbaska11 [484]3 years ago

3 0

Answer:

Selenium

Explanation:

selenium has 4 energy levels (think a 4 story building) while oxygen only has 2 (think 2 story building). which one is taller?

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How do hydrogen ions (h+) and chloride ions (cl–) get into the lumen of the stomach?

user100 [1]

In the stomach cell, the enzyme carbonic anhydrase converts one molecule of carbon dioxide and one molecule of water indirectly into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). In the stomach ion exchange is used to move H+ ions out the cells and into the lumen of the stomach

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3 years ago

How many significant figures<br> are in this number?<br> 107.051

Anestetic [448]

Answer:

there are 6 significant figures in 107.051

7 0

4 years ago

Read 2 more answers

Pls help ty so much!

Nitella [24]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:mass = 11.42 \:\: grams$

____________________________________

$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: Q = ms\Delta T$

$\textsf{Q = heat evolved/absorbed = 501 J}$

$\textsf{m = mass in gram = ?}$

$\textsf{s = specific heat = 0.45}$

$\textsf{ΔT = change in temp = 120 - 22.5 =97.5°C}$

$\large\textsf{Find m : }$

$\qquad \tt \rightarrow \: 501 = m \sdot(0.45) \sdot(97.5)$

$\qquad \tt \rightarrow \: 501 = m \sdot43.875$

$\qquad \tt \rightarrow \: m = \dfrac{501}{43.875}$

$\qquad \tt \rightarrow \: m \approx11.42 \: \: g$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

4 0

2 years ago

How many calories are absorbed in a process that absorbs 0.128 joules?

earnstyle [38]

Answer:

There are 0.0305 calories in 0.128 joules

Explanation:

Given that,

Heat absorbed, Q = 0.128 J

We need to find the heat energy absorbed in calories.

We know that the relation between joules and calories is as follows :

1 calorie = 4.184 J

1 J = (1/4.184) J

So,

$0.128\ J=\dfrac{0.128 }{4.184}\\\\=0.0305\ cal$

So, there are 0.0305 calories in 0.128 joules

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3 years ago

Among important crop plants, nitrogen-fixing root nodules are most commonly an attribute of A) corn. B) legumes. C) wheat. D) me

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<span>Among important crop plants, nitrogen-fixing root nodules are most commonly an attribute of
B) legumes</span>

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3 years ago