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Elina [12.6K]
3 years ago
10

17, A compound is a substance composed of two or

Chemistry
2 answers:
Serhud [2]3 years ago
7 0

Answer:

Explanation:

Wow

pickupchik [31]3 years ago
4 0

Answer:

A

Explanation:

Compounds are chemically combined in a fixed proportion . Like Hydrogen and Oxygen together form H2O, it is in fixed proportion 2 Hydrogen for one Oxygen. Also, they are chemically combined thus water has different properties than the individual elements that make it.

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Science has had no negative impacts on society. Please select the best answer from the choices provided T F
PtichkaEL [24]

Answer:

false

Explanation:

not all science is good, or has good effects

7 0
2 years ago
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What fuel source is Jan using if she exercises at 85% of her maximum aerobic capacity?
Marina86 [1]

Answer:

Carbohydrates

Explanation:

Increased exercise intensity means the overall need for energy increases. As we increase exercise intensity we increase our glucose uptake and oxidation which far exceeds uptake, indicating that muscle stores of glycogen are being used. At moderate intensities (65%) there is an increased need for muscle glycogen and muscle triglycerides which is fat. At higher levels of intensities (85%) there is an even greater need for energy, and this is met almost solely by an increased uptake of glucose from the blood and from muscle glycogen.

In the case of fats as an energy fuel source at high intensities, increasing levels of intensity increases fat oxidation but once we get into higher levels of intensity, we return to levels of fat oxidation similar to very low intensities.

4 0
3 years ago
Determine the grams of Iron(III) chloride produced if 22.5 g Iron reacts with Chlorine gas. First, balance the chemical equation
TEA [102]
22.5 because it still stays the same
4 0
2 years ago
What is a Control trial
AleksandrR [38]
It is a trial aimed to reduce bias during an experiment. An example would be a sugar pill, something that has no real effect so that the results of the true trial can accurately be compared. Its like a control group.
8 0
2 years ago
What is the percentage of lithium in lithium carbonate (Li2CO3)?
ale4655 [162]
Molar mass Li2CO3 = 73.89 g/mol
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% LI = 13.88/73.89*100 = 18.78% perfectly correct.
6 0
2 years ago
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