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Whitepunk [10]
4 years ago
13

Which objects will most likely float

Chemistry
1 answer:
storchak [24]4 years ago
6 0
Sponges, apples, light weight balls, etc.
they’re less dense than water
You might be interested in
Read the chemical equation. N2 + 3H2 → 2NH3 Using the volume ratio, determine how many liters of NH3 is produced if 1.2 liters o
zmey [24]

Answer : The volume of NH_3 produced will be, 0.8 liters.

Explanation : Given,

Volume of H_2 = 1.2 L

At STP, 1 mole of substance contains 22.4 L volume of substance.

The given balanced chemical reaction is:

N_2+3H_2\rightarrow 2NH_3

From the balanced chemical reaction we conclude that,

As, 3\times 22.4L volume of H_2 produced 2\times 22.4L volume of NH_3

So, 1.2L volume of H_2 produced \frac{2\times 22.4L}{3\times 22.4L}\times 1.2L=0.8L volume of NH_3

Therefore, the volume of NH_3 produced will be, 0.8 liters.

5 0
3 years ago
Read 2 more answers
Based upon the following equation: P4 + 5 O2 --> 2 P2O5 How many grams of P4 (molar mass 124 g = 1 mole) are necessary to rea
choli [55]
Sorry I don't know this
4 0
3 years ago
The concentration of calcium in a cell is 0.3%. The concentration of calcium in the surrounding fluid is 0.1%. How could the cel
iragen [17]

Answer:

Primary active transport                                                                                              

Explanation:

In a cell, the movement of molecules like calcium ions (Ca²⁺), <em>to a region having high solute concentration from a region having low solute concentration, through the cell membrane requires metabolic energy</em> and is known as Primary active transport.

It is given that the concentration of calcium in the cell (0.3%) is greater than the concentration of calcium in the fluid surrounding the cell (0.1%). <em><u>So the calcium ions move into the cell and the cell obtains more calcium. </u></em>

<u>Therefore, the cell obtains more calcium by the process of Primary active transport.</u>

4 0
4 years ago
What is the mass of a silver coin that contains 1.69x10^23 silver atoms? Report your answer in units of grams
Margaret [11]

Answer: 30.27 g

Explanation:

Since the silver is in units of atoms, we have to use Avogadro's number and molar mass.

Avogadro's number: 6.022×10²³ atoms/mol

Molar Mass: 107.87 g/mol

Now that we have everything we need, we can convert atoms to grams.

1.69*10^{23} atoms*\frac{1mol}{6.022*10^2^3 atoms} *\frac{107.87 g}{1mol} =30.27 g

3 0
3 years ago
Can somebody plz tell me which one I should circle for each question thanks!!!
marusya05 [52]

Answer:

1. False

2. True  

3. True

4. True

5. False

Explanation:

7 0
3 years ago
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