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Usimov [2.4K]
3 years ago
14

What is an atomic weight?

Chemistry
1 answer:
S_A_V [24]3 years ago
3 0
The average weight of an atom of an element, formerly based on the weight of one hydrogen atom taken as a unit or on 1/16 (0.0625) the weight of an oxygen atom, but after 1961 based on 1/12 the weight of the carbon-12 atom.
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Calculate the number of moles in 1.8gram of h2o<br>​
Rzqust [24]

Answer:

~.1058 Moles

Explanation:

The formula for this question is the following.

1 mole of a compound/molar mass of the compound.

First we need to find the molar mass of H2O, which is the atomic mass on the periodic table. Hydrogen is 1.01, Oxygen is 16.00. Add those together to get the molar mass of the compound and you'll get an equation that looks like this.

1 mole of H2O/ 17.01 g/mol H2O

We now know that in 1 mole of H20 there is 17.01 g.

Take 1.8g and divide it by 17.01, you get your answer.

7 0
3 years ago
Ao<br>25% of 80 =<br>please help me asap ​<br>this is math btw not chem
mestny [16]

Answer:

55

Explanation:

if you sub and I am writing it simple

3 0
3 years ago
Read 2 more answers
A(n)_______is a balanced chemical equation that includes the
Katyanochek1 [597]

Answer:

thermochemical equation

Explanation:

A(n)__thermochemical equation_____is a balanced chemical equation that includes the physical states of all reactants and products, and the energy change that accompanies the reaction.

7 0
3 years ago
A food product contains 15 g of carbohydrates (CHO), 5 g of protein (PRO), and 4 g of fat. How many calories are in one serving
ANEK [815]

Answer:

116 Cal  

Explanation:

15 g CHO × 4 Cal/g =   60 Cal

5 g PRO  × 4 Cal/g =   20

4 g fat     × 9 Cal/g = <u>  36     </u>  

                   TOTAL = 116 Cal

There are 116 Cal in one serving of the product.

6 0
3 years ago
Read 2 more answers
Solve for C. C = K -273<br> K= 37
brilliants [131]

C= -236

Explanation:

k=37.

37-273. 273-37=236

37-273= -236

<u>THEREFORE</u>

The value of C is -236

8 0
2 years ago
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