3 years ago

Help please please please please

Chemistry

1 answer:

Rom4ik [11]3 years ago

7 0

Answer:

D. 18.7 grams

Explanation:

The coefficients are the key.

Create a proportion with them, and the molar mass, and then solve for x:

$\frac{2}{3} = \frac{x}{28} \\ 3x = 2(28) \\ 3x = 56 \\ x = 18.666... = 18.7$

You might be interested in

4.564000 x 10^-4 express how many significant figures

Vaselesa [24]

Answer: 7

Explanation:

Before a number but after a decimal. The zeros at the end would usually mean that it doesn't count but since the numbers are before the zeros and after a decimal it's 7 sig figs

5 0

3 years ago

Using the appropriate starting material, (1) show the synthetic steps of the modified Kiliani-Fischer chain extension synthesis

sashaice [31]

Answer:............

Explanation:

Download doc

3 0

2 years ago

Why water can't be burn

mojhsa [17]

Answer:because it isnt flammable

Explanation:water can not be burned

3 0

3 years ago

How to make science project on magnet

Alex

You can put magnets on a fridge

4 0

2 years ago

Describe the 3 stages in the " life cycle" of a volcano

SpyIntel [72]

active,dormant,extinct

3 0

2 years ago

Read 2 more answers