Answer:
The electrons are attracted to the nuclei of both atoms.
Explanation:
Electrons are attracted to nuclei because nuclei are positively charged and electrons are negatively charged. Opposites attract
Answer:
= <em>3</em><em>7</em><em> </em><em>g</em>
Explanation:
H₂SO₄ + 2NaOH ----> Na₂SO₄ + 2H₂O
2 moles of NaOH react with 1 mole of H₂SO₄
0.75 moles of NaOH will react with (0.75 / 2)×1
= 0.375 moles of H₂SO₄.
Formular mass of H₂SO₄ = (1×2)+32+(16×4) = 98g
1 mole of H₂SO₄ weighs 98g
0.375 moles of H₂SO₄ will weigh ( 0.375×98)g
= 36.7g = 37g of H₂SO₄
The first answer is B and the second answer is B
Answer:
A. False.
Every substance contains the same number of molecules i.e 6.02x10^23 molecules
B. False.
Mass conc. = number mole x molar Mass
Mass conc. of 1mole of N2 = 1 x 28 = 28g
Mass conc. of 1mol of Ar = 1 x 40 = 40g
The mass of 1mole of Ar is greater than the mass of 1mole of N2
C. False.
Molar Mass of N2 = 2x14 = 28g/mol
Molar Mass of Ar = 40g/mol
The molar mass of Ar is greater than that of N2.
Explanation: