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3 years ago

What is a primary consumer

Chemistry

2 answers:

IRINA_888 [86]3 years ago

4 0

Answer: usually a herbivore who feeds on plants

Explanation: Examples are cows, horses, deer, and rabbits.

Ket [755]3 years ago

3 0

Answer:

They eat producers

Explanation:

for example, any herbivore

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What is meant by the octet rule? What electrons are involved? How does this affect how elements bond?

FromTheMoon [43]

Answer:

The octet rule is a chemical rule of thumb that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas

Explanation:

4 0

2 years ago

At 1000 K, Kp=19.9 for the reaction Fe2O3(s)+3CO(g)<--->2Fe(s)+3CO2(g) What are the equilibrium partial pressures of CO an

SOVA2 [1]

Answer: The equilibrium concentration of CO is 0.243 atm

Explanation:

We are given:

Initial partial pressure of carbon dioxide = 0.902 atm

As, carbon dioxide is present initially. This means that the reaction is proceeding backwards.

For the given chemical equation:

$Fe_2O_3(s)+3CO(g)\rightleftharpoons 2Fe(s)+3CO_2(g)$

Initial: 0.902

At eqllm: 3x (0.902-3x)

The expression of $K_p$ for above equation follows:

$K_p=\frac{(p_{CO_2})^3}{(p_{CO})^3}$

We are given:

$K_p=19.9$

Putting values in above equation, we get:

$19.9=\frac{(0.902-3x)^3}{(3x)^3}\\\\x=0.0810$

So, equilibrium concentration of CO = 3x = (3 × 0.0810) = 0.243atm[/tex]

Hence, the equilibrium concentration of CO is 0.243 atm

6 0

3 years ago

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Which of the following is NOT how compounds are formed?

cricket20 [7]

Compounds are not formed by accepting electrons. Number 1 and 3 are correct.

5 0

3 years ago

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75.0 grams NaBr Find the molar mass and number of moles

AVprozaik [17]

Answer:

Molar mass = 103.0 g/mol,

0.728 mol NaBr

Explanation:

Molar mass M(NaBr) = M(Na) + M(Br) = 23.0 + 80.0 = 103.0 g/mol

75.0 g NaBr * 1 mol NaBr/103.0 g NaBr=0.728 mol NaBr

7 0

2 years ago

Protons are made up of _____ up quarks and one down quark

suter [353]

Answer:

two

Explanation:

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3 years ago

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