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3 years ago

There are well over 100 __________________ that exist on Earth

Chemistry

2 answers:

Nezavi [6.7K]3 years ago

7 0

Answer:

species like plants, animals , human etc

joja [24]3 years ago

7 0

Answer:

Dogs, Chocolate, Tvs, Phones.

Explanation:

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artcher [175]

Answer:

Explanation:

Meters squared would be a good unit of measurement for Sanjeev's purposes.

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3 years ago

Hydrogen gas, iodine vapor, hydrogen iodine are mixed in a flask and heated to 696°C. H2(g) + I2(g) ⇋ 2 HI(g) Kc = 52 at 696°C I

Anettt [7]

Answer: The equilibrium concentration of hydrogen gas is 0.0269 M

Explanation:

The chemical reaction follows the equation:

$H_2(g)+I_2(g)\rightleftharpoons 2HI(g)$

At t = 0 0.044M 0.044M 0.177M

At $t=t_{eq}$ (0.044-x)M (0.044-x)M (0.177+x)M

The expression for $K_c$ for the given reaction follows:

$K_c=\frac{[HI]^2}{[H_2]\times [I_2]}$

We are given:

$K_c=52$

Putting values in above equation, we get:

$52=\frac{(0.177+x)^2}{(0.044-x)^2}$

$x=0.0171M$

Hence, the equilibrium concentration of hydrogen gas is (0.044-x) M =(0.044-0.0171) M= 0.0269 M

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3 years ago

If liquid water ___ energy it will become ice

kati45 [8]

Answer:

the answer is 1- loses

Explanation:

When water freezes it gives up some of the water's energy.

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3 years ago

Three people made the

mojhsa [17]

Answer:

the answer is b hope it helped

Explanation:

8 0

3 years ago

Whats the difference between covalent and ionic bonds

il63 [147K]

Answer: The two main types of chemical bonds are ionic and covalent bonds. An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms.Jan 23, 2020

Explanation: Hope this helped!!!!

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3 years ago