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3 years ago

Why fluorine would rather bind to calcium than hydrogen

Chemistry

1 answer:

madreJ [45]3 years ago

4 0

Answer:

Because looking at the reactivity series of both elements Calcium is more reactive than hydrogen.

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The genetic material of a prokaryotic cell is found in the

Taya2010 [7]

Answer:

The genetic material of a prokaryotic cell is found in the cytoplasm.

Explanation:

3 0

3 years ago

A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350 M , [B] = 0.650 M , and [C] = 0.300 M . Th

uysha [10]

<u>Answer:</u> The value of equilibrium constant, $K_c$ for the given reaction is 12.85.

<u>Explanation:</u>

For the given chemical equation:

$A+2B\rightleftharpoons C$

At t = 0 0.350M 0.650M 0.300M

At $t=t_{eq}$ (0.350 - x) (0.650 - 2x) (0.300 + x)

We are given:

Equilibrium concentration of A = 0.220 M

Forming an equation for concentration of A at equilibrium:

$0.350-x=0.220\\x=0.130$

Thus, the concentration of B at equilibrium becomes = $0.650-(2\times 0.130)=0.390M$

Equilibrium concentration of C = 0.430 M

The expression of $K_c$ for the given chemical equation is:

$K_c=\frac{[C]}{[A][B]^2}$

Putting values in above equation:

$K_c=\frac{0.430}{0.220\times (0.390)^2}\\\\K_c=12.85$

Hence, the value of equilibrium constant, $K_c$ for the given reaction is 12.85.

8 0

3 years ago

A sulfur ion has 16 protons and 18 electrons. Find the net charge

andrezito [222]

I think its 2-, it gained 2 electrons.

5 0

4 years ago

Give the name of the following molecule. EXTRA POINTS PLEASE HELP

Rudik [331]

There isn t a 'middle' carbon because there is an even number of them

If the methyl group braches off the 3rd carbon the name is

hexa-3-methyl-3-ene

3 0

3 years ago

Water is placed in a graduated cylinder and the volume is recorded as 43.5 ml. a homogeneous sample of metal pellets with a mass

natulia [17]

Density = mass /volume of the body. mass = 10.88 g, volume of the liquid displaced= 49.4-43.5=5.9 ml.

density = 10.88/5.9=1.844 g/ml~1.84 g/ml

The volume displaced is exactly the same as that of the body (The Eureka fro Archimedes!)

7 0

3 years ago