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Ghella [55]
3 years ago
13

Convert 650. J of energy to either kcal or cal

Chemistry
1 answer:
timama [110]3 years ago
8 0
155.24983 If you look up the formula to this you can do it on your calculator.
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20 POINTS!!! PLS HELP ME
Gala2k [10]

Answer:

they just add heat, then it turns to water vapor

Explanation:

The first h20 is water the arrow represents adding heat, and the second h20 represent water vapor (water as a gas)

5 0
3 years ago
Read 2 more answers
Two students in the same class find that a piece of wood,
Naily [24]

Answer:

The wood is oak.

Explanation:

Given data:

Mass of wood = 70 g

Volume of wood = 103 cm³

Wood is oak = ?

Solution:

We will calculate the density of wood then we will compare it with literature value.

Density = mass/ volume

d = 70 g/ 103 cm³

d = 0.68 g/cm³

The density of oak is 0.59 - 0.90 g/cm³.

So its true, wood is oak.

5 0
3 years ago
If one serving of a packaged frozen dinner contains 5.2 grams of saturated fat and the maximum recommended daily intake of satur
den301095 [7]

Answer:

The percentage of the daily value for saturated fat provided by one package of this food is 26.0%

Explanation:

It has been given from the preceding statement that one package of the dinner provides 5.2g out of the 20 grams recommended for daily need. This is 5.2/20 x 100 given 26.0% of the daily neded value will be provided by a plate or package of the dinner.

7 0
3 years ago
What is definition "scientific question"?
Lemur [1.5K]

Answer:

A scientific question is basically a question that can lead to a hypothesis to help us figure out the observation in science. I hope this helps you

4 0
2 years ago
Read 2 more answers
Write the chemical reaction for  ammonia in water
Otrada [13]
NH3 + H2O -> NH4+ + OH-  is the answer I think I just did this in class today

6 0
3 years ago
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