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lapo4ka [179]
2 years ago
14

What are 2 properties of Matter and how are they different?

Chemistry
1 answer:
puteri [66]2 years ago
7 0

Answer:

look it up on google or ask someone

Explanation:

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Which statement is true about the radii of Na and Na+?
kicyunya [14]

Answer:

Na has a larger atomic radius than Na+.

Explanation:

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2 years ago
What material would be the best choice for the support beams of a building
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Steel would be the best choice for support beams
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3 years ago
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When 24g of magnesium metal is heated in air, 40g of magnesium oxide is produced. What mass of magnesium would be needed in orde
inysia [295]

Answer: 6.1 g

Explanation:

between Mg and MgO theres a 1;1 MOLE RATIO

here's the balanced equation

2Mg + O2 ==> 2MgO

24g of magnesium is approximately 1 mole of magnesium so it produces 40 g of mgo which is also 1 mole of mgo thus 10/40 =0.25 moles of MgO so 0.25 moles of magnesium would be needed  which is approximately 6.1 g

6 0
2 years ago
Complete the following equation: 250/96Cm ——-> ? + 4 1/0n
vfiekz [6]

Answer:

²⁵⁰₉₆Cm → ²⁴⁶₉₆Cm + 4 ¹₀n

Explanation:

The complete equation is;

²⁵⁰₉₆Cm → ²⁴⁶₉₆Cm + 4 ¹₀n

  • The above equation is an example of a nuclear reaction in which unstable atom of Cm emits neutrons to become more stable.
  • Radioactive isotopes undergo radioactivity or decay to attain stability, they do so by emitting particles such as alpha, beta particles or a neutron.
  • An atom of Cm-250 undergoes decay and emits four neutrons to form an atom of Cm-246.
3 0
3 years ago
Round each number to three significant figures. 0.036549:
valina [46]

Answer:

0.0365

Explanation:

Three significant figures after the decimal include all numbers except the zeros before other numbers.

For example 0.000003431232 to three significant figures would be 0.00000343. However if the numbers are before the decimal, the zeros are included, for example 19828300 to three significant numbers would be 19800000.

8 0
2 years ago
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