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Bess [88]
2 years ago
10

Explain why the element of an atom doesn't change if you remove or add electrons or neutrons

Chemistry
1 answer:
liq [111]2 years ago
5 0

Answer:

If you could miraculously remove two neutrons from an atom's nucleus, the atomic number and electrical charge would stay unaltered. Because neutrons have no electrical charge, adding or removing them from the nucleus has no effect on the nucleus's electrical charge. It does, however, alter the nucleus's mass. Isotopes are formed by adding or subtracting neutrons from the nucleus.

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820 g Li2SO4 is dissolved into 2500 mL of solution. What is the molar concentration?
Andreas93 [3]

Molarity is defined as the moles of solute per liter of solution. M=\frac{n}{V}. Where M is molarity, n is the number of moles and V is the volume. First we must find the molar mass of Li_2SO_4 which is 109.98 g/mol

Li_2SO_4= 2 \times Li_{Ar} + S_{Ar} + 4 \times O_{Ar}\\= (2 \times 6.941 + 32.1 + 4 \times 16.0) = 109.98 g/mol

820\ g\ Li_2SO_4 \times \frac{mol}{109.98\ g}= 7.46\ mol\ Li_2SO4

Then we find the molarity using above equation

M= \frac{n}{V} = \frac{7.46 mol}{2500ml} \times\frac{1000ml}{L} = 2.98\ M


6 0
3 years ago
Pls solve<br>question attached as image<br>​
patriot [66]

Answer:

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8 0
2 years ago
Which of the following is not a property of an acid?
SpyIntel [72]

Answer:

1. bitter  

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7 0
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What substances pass through a leaf's stomata?
Lera25 [3.4K]
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7 0
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URGENT! 15 POINTS, WILL MARK BRAINLIEST
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Answer:

Explanation:

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mass is 2.2 times larger than the volume.

C. The mass is 2.2 times the volume.

3 0
3 years ago
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