1 L ------------------ 1000 cm³
1.30 L --------------- ??
1.30 x 1000 / 1 => 1300 cm³
Answer:
True
Explanation:
A neutron, like the name implies, is neutral with no net charge. The charge is believed to be from the charge of the quarks that make up the nucleons (protons and neutrons).
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Answer:
b) The acidic conditions break down foods directly.
c) It allows for the activation of pepsinogen into pepsin.
Explanation:
The acid inactivates all the enzymes in the food, and begins its own function of breaking down what is left of the food in combination with the enzyme pepsin. Finally, this nutrient rich food concentrate moves in the small intestine. There the acid is neutralized and enzymes produced by the pancreas are reintroduced to complete the process.
Answer:
<u>2 years</u> to decay to a mass of 50g.
Explanation:
given:
100g of substance with a half life of 2 years
to a mass of 50g
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
ln 2 0.693
Half life T1/2 = ---------- = -----------
λ λ
where λ = rate constant
The initial amount of 100 grams is decaying to a mass of 50 grams is half of its initial value.
Therefore, it will take 2 years for the decay.
Answer:
D.
The substance will have the same chemical properties.
Explanation:
Physical changes do not alter the chemical composition of a substance, so the chemical properties will not change.