Answer:the flames will get larger but then die back down
Explanation:
we all know this from puting gasoline in out camp fires -3-
Answer:
It reacts explosively with oxygen.
Explanation:
Reactivity is a chemical property.
Taste, temperature, and density are all chemical properties.
Answer:
Hot fluids are formed mainly of water and dissolved minerals. They can seep through rocks and chemically react with the minerals in the rocks potentially changing the composition of the rock. Metamorphic rocks can form from other metamorphic rocks.
An atom always has the same number of protons and electrons, so it has 14 electrons.
Remembe! Dont get confused between at atom and an ion. Atoms have same number of protons and electrons but in an ion it differs,
Answer:
18 DAYS IS THE HALF LIFE OF THE RADIOISOTOPE.
Explanation:
Using the formula
Nt = No * (1/2)^t/t1/2
where;
Nt = amount remaining = 25 g
No = Initial amounrt of the radioisotope = 50 g
t = time elapsed = 18 days
t1/2 = half life = unknown
Substitute the values into the equation and obtain the half life of the radioisotope;
Nt = No * (1/2) ^t/t1/2
25 = 50 * (1/2) ^18/t1/2
25 /50 = (1/2)^18/ t1/2
1/2 = (1/2)^18/t1/2
1/2)^1 = (1/2)^18/t1/2
1 = 18/t1/2
t1/2 = 18 days.
So therefore the half life of the radioisotope is 18 days.
