Please help brainiest.

Answers

Answer 1

Answer: I will go with 18 bc if you think what I thinking I will go with 18 for sure my final answer

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NEED HELP ASAP PLEASEIdentify the type of bonding, covalent, ionic, or metallic, between
the atoms in an oxygen molecule.

Answers

Answer:

here hope it helps

Explanation:

covalent bonds

What the guy said on top he is right.

Pure,24k gold is very malleable.by mixing gold with other metals it becomes less malleable.in what situations would you want to use gold that is not as malleable?

Answers

You could use the less malleable mixture of minerals. Say you have a gold earring this is bad because overtime it goes through lots of wear and tear, the shape of the earring will change. If it was less malleable it will withstand more wear and tear.

A solution of ammonia and water contains 1.80×1025 water molecules and 7.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

Answers

Answer:

6.40x10²⁵ hydrogen atoms

Explanation:

The solution contains:

1.80x10²⁵ water molecules (H₂O)
7.00x10²⁴ ammonia molecules (NH₄)

We need to calculate the total of hydrogen atoms (H) in the solution.

Each water molecule (H₂O) has 2 hydrogen atoms
Each ammonia molecule (NH₄) has 4 hydrogen atoms

Lets now calculate the number of hydrogen atoms in the solution:

total H atoms = (H atoms in water molecules) + (H atoms in ammonia molecules)

total H atoms = (2 x 1.80x10²⁵) + (4 x 7.00x10²⁴) =

total H atoms = 3.60x10²⁵ + 2.80x10²⁵ = 6.40x10²⁵

1 water molecule contains 2H atoms H atoms in 4.20*10^25 water molecules = 8.4*10^25 H atoms 1 NH3 molecule contains 3 H atoms H atoms in 6.00*10^24 NH3 atoms = 3*6.00*10^24 = 1.8*10^16 H atoms.

Total H atoms = 8.4*10^25 + 1.8*10^25 = 1.02*10^16 H atoms

How does hydrogen ion change into hydrogen atom