What would the atomic weight of the element be
If an element consisted of three isotopes in the following relative abundance, what would the atomic weight of the element be? this is a hypothetical example.30.00% 37.00amu50.00% 38.00amu20.00% 40.00amu
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On the basis of this model, what can you say (in general) about the change in soil water content with increasing depth?
An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is the value of n for the level to which the electron relaxed?
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How much heat is released in the oxidation of 3.68 L of methanol at 1.05 atm and 298 K? Give your answer in kJ (absolute value) to 3 significant figures.
If an element consisted of three isotopes in the following relative abundance, what would the atomic weight of the element be? this is a hypothetical example.
When excess aqueous ammonia is added to Ni(OH)2 the solid dissolves and the complex ion Ni(NH3)6^2+ is formed. Write the net ionic equation for the rxn.
Estimate the soil water content at the surface of the soil. Estimate the soil water content at a depth of 50 cm. Estimate the error variance s2.
8.69 g of zinc metal is heated in a dry test tube in aboiling water bath to 99.95 °C. The hot zinc metalis then dropped into 98.55 g of water at 20.65 °C in acalorimeter. The mixture of water and zinc eventually reaches 24.15°C
A 5 gram cart is released from rest 1 meter from the bottom of a frictionless, 30 degree ramp. The cart rolls down the ramp and bounces off a rubber block at the bottom.
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The nurse has taught a group of parents about varicella infection. Which of the following statements by a parent would indicate a correct understanding
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