2 years ago

Which statement is true concerning energy

Chemistry

1 answer:

slava [35]2 years ago

5 0

What are the statements ?

You might be interested in

True or False: Dishwashing liquid cleans dirty plates because the nonpolar tail of the detergent dissolves the oily dirt particl

Ghella [55]

Answer:

true

Explanation:

sorry if wrong I hope it right

3 0

2 years ago

Bromine has two isotopes 79Br and 81Br, whose masses (78.9183 and 80.9163 amu) and abundances (50.69% and 49.31%, respectively)

Reika [66]

Answer:

Average atomic mass = 79.9034 amu

Explanation:

The formula for the calculation of the average atomic mass is:

$Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})$

Given that:

For first isotope:

% = 50.69 %

Mass = 78.9183 amu

For second isotope:

% = 49.31 %

Mass = 80.9163 amu

Thus,

$Average\ atomic\ mass=\frac{50.69}{100}\times {78.9183}+\frac{49.31}{100}\times {80.9163}\ amu$

$Average\ atomic\ mass=40.0036+39.8998\ amu$

Average atomic mass = 79.9034 amu

4 0

3 years ago

Following the Napoleonic Wars , the congress of vienna took steps meant to:

Slav-nsk [51]

Answer:

Prevent any European country from growing much stronger than its neighbors.

Explanation:

4 0

3 years ago

Please help me answer this

-Dominant- [34]

Answer:

1.01

Explanation:

you have to trust me

3 0

1 year ago

Read 2 more answers

What are some of the most common "chemicals" you use around your home on a daily basis? And what do you use those chemicals for?

elena55 [62]

Answer:

You use Bleach, Dimethyl Ammonium Chloride, Sodium Nitrite, Ethyl benzyl Ammonium Chloride, Lemon citrus, Baking soda, ETC

Explanation:

You use these in some of your cleaning supplies and home-made remedies.

5 0

2 years ago