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marin [14]
3 years ago
9

Which of the following is NOT an acid? It will be basic.

Chemistry
1 answer:
viva [34]3 years ago
8 0

Answer:stomach acidExplanation:try lngss

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What's the difference between formula mass, molecular mass, and gram formula mass?
marissa [1.9K]
MASS: generally a measure of an object's resistance to changing its state of motion when a force is applied. It is determined by the strength of its mutual gravitational attraction.

Molecular mass or molecular weight is the mass of a molecule.

Gram formula mass (a.k.a. molar mass) is defined as the atomic mass of one mole of an element, molecular compound or ionic compound. The answer must always be written with the unit g/mol (grams per mole).


7 0
4 years ago
The complete combustion of copper(I) sulphide is according to the following equation:
MaRussiya [10]

Answer:

a) 7.94 x 10²³ molecules, b) 5.62 g SO2, c) 1.97 L

Explanation:

a) We need to first convert Cu2S to moles. Since molar mass of Cu2S is 159.14 g/mol, 14.0 g = 0.0880 mol. Using molar ratios (3 mol O2/2 mol Cu2S, 0.0880 mol of Cu2S = 0.132 mol O2. Since 1 mol contains 6.02 x 10²³ molecules, 0.132 mol O2 = 7.94 x 10²² molecules O2.

b) Since the molar ratios of Cu2S to SO2 is 1:1, 0.0880 mol of Cu2S produces 0.0880 mol SO2. To convert mol to grams, we use the molar mass of SO2 (64.06 g/mol) to figure out that 0.0880 mol SO2 = 5.63 g SO2.

c) At STP, 1 mol occupies 22.4 liters. 0.0880 mol SO2 x 22.4 L/1 mol = 1.97 L

If you would like more tutoring in chemistry or other subjects for FREE, check out growthinyouth.org.

5 0
3 years ago
What is the approximate mass of one mole of oxygen gas (O2)?
fenix001 [56]

The correct answer is B.

1 mol O2  x  15.999 O2/ 1 mol O2 = 15.999 O2

16 O2 when rounded.

3 0
3 years ago
Name the alkaline earth metal with the highest ionization energy
Tresset [83]
I think its beryllium 

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6 0
3 years ago
Read 2 more answers
Here is a list of ingredients for a simple cake:
cupoosta [38]
So really you only need to answer the first one because you have more than enough og everything. 2×(what)=14 then that will be your answer
3 0
4 years ago
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