3 years ago

A person uses 770 kcal on a long hike. Calculate the energy used for the hike in each of the following energy units.

Chemistry

1 answer:

Pavlova-9 [17]3 years ago

5 0

Explanation:

1 Cal of energy is equivalent to 4.184 Joules.

770Cal of energy = 3221.680 joules

Therefore, 780kCal of energy = 3221680 Joules.

3200000 Joules (in 2 s.f).

I000 joules = 1 kJoule

3221680 joules = 3221.689 kJoules.

3200 kJ (in 2 s.f).

You might be interested in

How many oxygen atoms are present in 3 grams of glucose

Kaylis [27]

Answer:

Because CLEARLY, each mole of glucose, C6H12O6 contains 6⋅mol oxygen atoms.

5 0

3 years ago

What is another name for the sunlit zone of the ocean?

motikmotik

Answer:

photic zone

Explanation:

i hope it will help

4 0

3 years ago

Read 2 more answers

6 × 10^9 mm = m. how to convert millimeters to m

OLga [1]

Answer:

6x10^9x10^-3m=6x10^6m

Explanation:

3 0

3 years ago

Why are some substances not able to dissolve in water?

Gemiola [76]

<span>Water is a polar molecule. If a solute dissolved in water is polar molecule, it will dissolve in water. If a solute dissolved in water is non-polar like oil it will not dissolve in water. Polar dissolves in polar.</span>

5 0

3 years ago

Which of the following are products of the reaction listed? Zn + 2HCI

Alexus [3.1K]

Answer:

uh A.)? [ZnCI2+H2]? /////////

5 0

3 years ago