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Troyanec [42]
3 years ago
11

What is a big plants In the world who can say I want a answer​

Chemistry
1 answer:
mart [117]3 years ago
6 0

Answer:

Jupiter

Explanation:

Fifth in line from the sun, Jupiter is, by far, the largest planet in the solar system.

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A chemical reaction produces formaldehyde, with a chemical formula of CH2O. Carbon is in group 4A, Oxygen is in group 6A, and Hy
steposvetlana [31]

Answer:

Explanation:

carbon in  group 4A needs 4 more electrons to be stable

hydrogen in group 1A has one electron needs 1 more t o be stale

oxygen in group 6A has 6 and needs 2 more to be stable

They all obtain this by sharing electrons  8 around C &O, 2 around H

H  : C:  H

       ::        

      :O:

5 0
2 years ago
A fossil was analyzed and determined to have a carbon-14 level that is 70 % that of living organisms. The half-life of C-14 is 5
Citrus2011 [14]

Answer: 2948

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.69}{t_{\frac{1}{2}}}=\frac{0.693}{5730}=1.21\times 10^{-4}years^{-1}

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 1.21\times 10^{-4}years^{-1}

t = age of sample  = ?

a = let initial amount of the reactant  = 100

a - x = amount left after decay process = \frac{70}{100}\times 100=70

t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{70}

t=2948years

Thus the fossil is 2948 years old.

5 0
3 years ago
When heat is removed from a substance, explain how molecules are affected
sweet [91]
Molecules are cooler so they bocme more dense.. move very slow, have less kinetic energy and are not in random motion.
4 0
3 years ago
Read 2 more answers
If the family decreases the clothing budget by 3 percent, what amount will it have to spend on clothing? Round to the nearest do
Contact [7]
What is there initial budget? and then take that and multiply by .3 and the. subtract that number from the original budget and you get your answer
5 0
3 years ago
What is the standard notation for 7.934 x 10-4 ?
maks197457 [2]

Answer:

It is

Explanation:

75.34 Im hopeing this correct.Very sorry if wrong.

4 0
3 years ago
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