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3 years ago

What is the process of using one or more of your five senses to measure or collect data?

Chemistry

2 answers:

sveta [45]3 years ago

7 0

Answer:

B no observation pls mark me branilest

adell [148]3 years ago

4 0

Can I ask you a question

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What is the name of the covalent compound n2o5?

MAVERICK [17]

Dinitrogen Pentoxide

8 0

4 years ago

When weather starts to average out in a pattern over many years, like 30 years, scientists can calculate the average weather con

meriva

Answer:

the earth is different in all places

Explanation:

6 0

3 years ago

If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5 C on a clorimetr liake hat in Fig

Dvinal [7]

Answer: The final temperature of water is 38.5°C

Explanation:

To calculate the amount of heat released or absorbed, we use the equation:

$q=mc\Delta T$

where,

q = heat absorbed = 1.506 kJ = 1506 J (Conversion factor: 1 kJ = 1000 J)

m = mass of water = 30 g

c = specific heat capacity of water = 4.184 Jl/g.°C

$\Delta T$ = change in temperature = $T_2-T_1=T_2-26.5^oC$

Putting values in above equation, we get:

$1506J=30g\times 4.184J/g.^oC\times (T_2-26.5^oC)\\\\T_2=38.5^oC$

Hence, the final temperature of water is 38.5°C

4 0

4 years ago

Help Please and answer correctly otherwise, I can report the answer and your account so make sure the answer is correct BUT PLEA

SashulF [63]

Explanation:

because it depends on how fast u peddle and not how much weight or anything like that on it

6 0

3 years ago

A serving of soup contains 5.0 g of fat, 20.0 g of carbohydrates, and 3.0 g of protein. Determine how many kilocalories (kcal) a

marta [7]

Answer: The amount of kilocalories contained in the given serving of soup is 0.137 kCal

Explanation:

As per the USDA:

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

We are given

Mass of fat in the soup serving = 5.0 g

Mass of carbohydrates in the soup serving = 20.0 g

Mass of protein in the soup serving = 3.0 g

Conversion factor used: 1 kCal = 1000 Cal

Applying unitary method:

For Fat:

1 gram of fat provides 9 calories

So, 5.0 gram of fat will provide = $\frac{9}{1}\times 5.0=45Cal=0.045kCal$

For Carbohydrates:

1 gram of carbohydrates provides 4 calories

So, 20.0 gram of carbohydrates will provide = $\frac{4}{1}\times 20.0=80Cal=0.080kCal$

For Proteins:

1 gram of proteins provides 4 calories

So, 3.0 gram of fat will provide = $\frac{4}{1}\times 3=12Cal=0.012kCal$

Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal

Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal

4 0

3 years ago