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Luden [163]
2 years ago
13

Help someone pls and thank u

Chemistry
2 answers:
deff fn [24]2 years ago
8 0
Number one is cell membrane and number two is proteins
ddd [48]2 years ago
4 0

Answer:

  1. The cell membrane is semi-permeable - it controls what can enter and leave the cell
  2. Ribosomes make proteins

Hope this helps!

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Which structures perform similar functions in plant and animal cells?
lyudmila [28]

Answer:

2

Explanation:

Sorry if Im wrong

8 0
2 years ago
You have 1.88 moles of NaOH and an excess of H2SO4. How many grams of H2O will be produced?
KATRIN_1 [288]

Answer:

2 NaOH + H2SO4 2 H2O + Na2SO4

How many grams of sodium sulfate will be formed if you start with 200.0

grams of sodium hydroxide and you have an excess of sulfuric acid?

355.3 grams of Na2SO4

200.0 g NaOH 1 mol NaOH 1 mol Na2SO4 142.1 g Na2SO4

40.00 g NaOH 2 mol NaOH 1 mol Na2SO4

= 355.3 g

Explanation:

3 0
2 years ago
Solids, liquids, and gases are three common states of matter. in which of these physical states would a water molecule likely ha
melamori03 [73]
The States of Matter are classified into solid, liquid, and gas. Among these physical states, if we are going to refer to the water molecules, the one that would possess the greatest energy is gas. If you would take the energy of gas, this would become liquid. The answer is option C.
8 0
3 years ago
1.42 mol sample of neon gas at a temperature of 13.0 °C is found to occupy a volume of 25.5 liters. The pressure of this gas sam
Dima020 [189]

Answer: 996 mmHg

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = ?

V= Volume of the gas = 25.5 L

T= Temperature of the gas = 13°C = (273+13) K  = 286K

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 1.42

P=\frac{nRT}{V}=\frac{1.42\times 0.0821\times 286}{25.5}=1.31atm=996mmHg      (760mmHg=1atm)

Thus pressure of this gas sample is 996 mm Hg.

3 0
3 years ago
30 POINTS!!! Please Help With this!!!!
Goshia [24]
X is dependent Y is independent.... number of students is Y flavor is X
6 0
2 years ago
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