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4 years ago

What element is found in fish

2 answers:

7 0

The elements found in fish are Mercury, Cadmium, Lead, Tin and Arsenic
Your answer is Mercury, Cadmium, Lead, Tin and Arsenic

Elena-2011 [213]4 years ago

5 0

Well toxic elements found in fish are Mercury, cadmium, lead, tin, and arsenic.

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Determine the molar mass of CaO

Umnica [9.8K]

56.0774 g/mol just took the test

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3 years ago

What is a siesmograph

erastova [34]

Answer:

measures earth or ground movement such as earthquake

4 0

4 years ago

An atom has 20 protons, 26 neutrons, and 20 electrons. what could be the atomic mass of this atom?

Elanso [62]

46 is the answer. because if you add 26 and 20 that is the mass

7 0

3 years ago

Consider the reaction. PCl5(g)↽−−⇀PCl3(g)+Cl2(g) K=0.042 The concentrations of the products at equilibrium are [PCl3]=0.18 M and

tatyana61 [14]

Answer: The equilibrium concentration of $PCl_5$ is 1.285 M.

Explanation:

The chemical equation for the decomposition of phosphorus pentachloride follows:

$PCl_5(g)\rightleftharpoons PCl_3(g)+Cl_2(g)$

The expression for equilibrium constant is given as:

$K_c=\frac{[PCl_3][Cl_2]}{[PCl_5]}$

We are given:

$K_c=0.042$

$[PCl_3]=0.18M$

$[Cl_2]=0.30M$

The concentration of solid substances are taken to be 1. Thus, they do not appear in the equilibrium constant expression.

Putting values in above equation, we get:

$0.042=\frac{0.18\times 0.30}{[PCl_5]}$

$[PCl_5]=1.285$

Hence, the equilibrium concentration of $PCl_5$ is 1.285 M.

6 0

3 years ago

PLEASE HELP!!!!! (SCIENCE!!!)

vladimir1956 [14]

large iguanas are affected by el nino temperatures

because algae do not grow as rapidly with el nino temperatures

survival rates for the larger iguanas drop

if they are bigger than 36 centimeters

the drop happens beginning with sizes around 40 centimeters

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2 years ago