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Sergeeva-Olga [200]
3 years ago
14

Which metal would form a stronger metallic bond?

Chemistry
1 answer:
AleksandrR [38]3 years ago
4 0

Answer:

c

Explanation:

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A student places four identical cells into four different liquids. Over time which cell will look the smallest WXY or Z
marta [7]

Answer: W

Explanation:

The cell in liquid W will look the smallest out of the four because of Osmosis.

Osmosis is a process by which water molecules move from an area of relatively higher concentration of water to an area with a relatively lower concentration through a selectively permeable membrane(cell membrane).

With W being saltier than the cell, water molecules will move from the cell to liquid W to balance the concentrations inside and outside the cell which will lead to the cell in W being smaller.

3 0
3 years ago
The younger layers of rock in the Grand Canyon are on top of the older layers.
laiz [17]

The next layer is about 30 million years older and contains plant fossils in its mixed shale, limestone, and sandstone rock layers. The third to last layer is full of brachiopods, trilobites, and trilobite tunnels. You believe it is the oldest layer above surface in the Grand Canyon.

4 0
3 years ago
Read 2 more answers
What is a rule for determining the mass number of an atom or ion​
Dennis_Churaev [7]

Answer:

The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

sorry if im wrong

Explanation:

5 0
3 years ago
The hardness of water (hardness count )is usually expressed in parts per million(by Mass) CaCO3, which is equivalent to milligra
Ksju [112]

Answer:

1.75 × 10⁻³ M

Explanation:

Given:

Hardness = 175 mg CaCO₃/L

or mass of CaCO₃ in 1 L = 175 × 10⁻³ grams

Now,

Molar mass of CaCO₃ = 40 + 12 + ( 3 × 12 ) = 100 grams/mol

The concentration of CaCO₃ = number of moles / volume

or

= (175 × 10⁻³ / 100) / 1

or

= 1.75 × 10⁻³ M

Now,

       CaCO₃         ⇒        Ca²⁺         +         CO₃²⁻

1.75 × 10⁻³ M          1.75 × 10⁻³ M         1.75 × 10⁻³ M

thus,

the concentration of Ca²⁺ ions in water = 1.75 × 10⁻³ M

4 0
3 years ago
H2SO4 + 2 KOH --> K2SO4 + 2 H2O
alisha [4.7K]
Double replacement because H and K are both switching
8 0
3 years ago
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