Gulbrandson697 Gulbrandson697

01-09-2015
Chemistry

contestada

The percent composition of all elements in HClO3 is:
a. 2% H, 20% Cl, 78% O
b. 1% H, 42% Cl, 57% O
c. 2% H, 68% Cl, 30% O
d. None of the above

Respuesta :

lulu1991 lulu1991

01-09-2015

The percent composition is defined by mass percent. So the calculation is through the atomic mass. The mass for H is 1, Cl is 35.5, O is 16. So the answer is B.

Answer Link

Otras preguntas

What war broke out between england and france in 1754?

How many electors must a presidential candidate secure in the electoral college to be elected president of the united state?

Individuals receiving anticoagulant therapy with warfarin should be instructed to monitor their consumption of foods high in vitamin k because

Which set of steps shows the solution to the equation 2y = −8? A) y = −8 − 2; y = 6 B) y = −8 ÷ (−2); y = 4 C)y = −8 ÷ 2; y = −4 D) y = −8 − (−2); y = −6

If sin Θ = negative square root 3 over 2 and π < Θ < 3 pi over 2, what are the values of cos Θ and tan Θ?

Blood exchanges carbon dioxide for oxygen in the ____. A.) Stomach B.) Trachea C.) Alveoli

Given the vertices of ∆ABC are A (2,5), B (4,6) and C (3,1), find the vertices following each of the transformations FROM THE ORIGINAL vertices: a. Rx-axis b

A motorboat and a pwc are meeting head-on. which one is the stand-on vessel?

When atoms of two or more elements are chemically bonded the substance formed is a?

Functions of the smooth endoplasmic reticulum include ______. 1