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KengaRu [80]
3 years ago
8

Sponges, Cnidarians, Flatworms, and Roundworms are all in which group of animals?

Chemistry
1 answer:
Westkost [7]3 years ago
3 0
These animals are all invertebrates
You might be interested in
How many moles of sodium must react completely to produce 0.175 moles of sodium
polet [3.4K]

Answer:

You can view more details on each measurement unit: molecular weight of Sodium Nitrate or mol The molecular formula for Sodium Nitrate is NaNO3. The SI base unit for amount of substance is the mole. 1 grams Sodium Nitrate is equal to 0.011765443644878 mole.

Explanation:

5 0
3 years ago
Cyanogen is a gas which contains 46.2% C and 53.8% N by mass. At a temperature of 25°C and a pressure of 750 mm Hg, 1.50 g of cy
sergiy2304 [10]

Answer:

Molecular formula of cyanogen is C₂N₂

Explanation:

We apply the ideal gases law to find out the mole of cyanogen

P . V =  n. R. T

Firstly let's convert the pressure in atm, for R

750 mmHg = 0.986 atm

25°C + 273 = 298K

0.986 atm . 0.714L = n . 0.082 L.atm/mol.K .298K

(0.986 atm . 0.714L) / (0.082 L.atm/mol.K .298K) = n

0.0288 mol = n

Molar mass of cyanogen = mass / mol

1.50 g /0.0288 mol = 52.02 g/m

Let's apply the percent, to know the quantity of atoms

100 g of compound contain 46.2 g of C and 53.8 g of N

52.02 g of compound contain:

(52.02 . 46.2) / 100 = 24 g  → 2 atoms of C

(52.02 . 53.8) / 100 = .28 g  →  2 atoms of N

3 0
3 years ago
Suppose now that you wanted to determine the density of a small crystal to confirm that it is boron. From the literature, you kn
Phantasy [73]

Answer:

the volume of  CHCI3 = 7.87 ml

the volume of  CHBr3 = 12.13 ml

Explanation:

From the given information:

We all know that 1 g/cm^3 = 1 g/ml

The density of boron = 2.34 g/ml

The Volume of the liquid mixture  = 20 ml

Recall that:

Density = mass/volume

Mass = Density × Volume

Mass = 2.34 g/ml × 20 ml

Mass = 46.8 g

Suppose the volume of  CHCI3 be Y and the Volume of CHBr3 be 20 - Y

Then :

Y (1.492) + 20-Y(2.890) = 46.8

1.492Y + 57.8 - 2.890Y = 46.8

- 1.398 Y = -11

Y = -11/ - 1.398

Y = 7.87 ml

Therefore, the volume of CHCI3  7.87 ml

the volume of  CHBr3 = 20 - Y

= 20 - 7.87

= 12.13 ml

3 0
3 years ago
Hydrogen and helium cannot condense to gas at temperatures above water's freezing point. when planets would be made of gas?
kodGreya [7K]

Answer:

no.

Explanation:

only one planet would be made gas

is earth. and for what you mean like when

planet would be made of gas my answer is no

because theirs so gravity but im not the one

who's deciding and god is the one who's deciding

if when is the other planet having a gas

i know im wrong

8 0
3 years ago
What differences does distillation rely on to separate out parts of a solution?
Artyom0805 [142]

Different boiling point.

Because in distillation the substance with lower boiling point is evaporated, leaving the other material(s).

8 0
3 years ago
Read 2 more answers
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