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4 years ago

What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be

Chemistry

1 answer:

Rufina [12.5K]4 years ago

3 0

Answer:

Explanation:

The outer shells of both elements have 4 electrons

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How many moles of NaCl are needed to make 10.0L of a 5 M solution of Salt water?*

vesna_86 [32]

Answer: 50 mol

Explanation:

$Molarity=\frac{Moles -of -solute}{liters -of -solution}$

$M=\frac{mol}{L}$

$mol=M*L$

$mol=5*10\\mol=50mol$

3 0

3 years ago

Given the equation: 2H2 + O2 → 2H2O, how many moles of oxygen are needed to react with 13 moles of hydrogen

bulgar [2K]

Explanation:

2H2 + O2 = 2H2O

2mol. 1mol. 2mol

2mol reacts with 1mol

13mol reacts with x

x=13mol × 1mol

2mol

x= 13mol

2mol

x= 6.5mol of oxygen

6 0

2 years ago

He partial lewis structure that follows is for a hydrocarbon molecule. in the full lewis structure, each carbon atom satisfies t

Bezzdna [24]

Answer:

Four (4) hydrogen atoms

Explanation:

C=C-C(triple bond)C

only four hydrogen atoms can bond with the vacant space

6 0

3 years ago

Read 2 more answers

Is titanium a metal nonmetal or metalloid?

tatiyna

Titanium is the first element in the fourth column of the periodic table. It is classified as a transition metal. Titanium atoms have 22 electrons and 22 protons. Titanium is fairly inactive and is very resistant to corrosion from other elements and substances like acids and oxygen. It has a relatively low electrical and thermal conductivity. Titanium is used to alloy with different metals such as iron, aluminum, and manganese where it helps to produce strong and lightweight alloys for use in spacecraft, naval ships, missiles, and as armor plating.

6 0

3 years ago

What would be the new volume if the pressure on 600 L is increased from 90.0 kPa to 150 kPa?

Liono4ka [1.6K]

Answer:

new Volume of gas=360L

Explanation:

Assume that given gas follow the ideality nature of gas

Assuming that temperature is constant;

P1 and V1 are the initial parameter of gas

and p2 and V2 are the parameter after increasing the pressure

according to boyle 's law pressure is inversly proportional to the volume at constant temperature.

$P_1V_1=P_2V_2$

given value of volume and gas

P1=90kPa

V1=600L

P2=150kPa

V2=?

After putting all values we get;

V2=360L

new Volume of gas=360L

7 0

3 years ago