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Musya8 [376]
4 years ago
9

Waves that can travel through empty space are called

Chemistry
1 answer:
ExtremeBDS [4]4 years ago
7 0

Answer:

Hello, <em>Otaku Kun </em>Here! >:3

Explanation:

Electromagnetic waves? This is also called light!

<em>hope this helps!</em>

<em>from: Otaku Kun! ^^</em>

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Predict the products of the electrolysis of molten nickel(II) iodide. Write an ionic half-equation for the formation of one of t
Daniel [21]

Answer:

See explanation

Explanation:

The electrolysis of  nickel(II) iodide yields nickel solid and iodine gas.

In the oxidation half equation;

2I^-(aq)-------> I2(g) + 2e

In the reduction half equation;

Ni^2+(aq) + 2e  -----> Ni(s)

These are the half equations of the process;

The  overall equation is;

Ni^2+(aq) + 2I^-(aq)-------> NiI2

6 0
3 years ago
Consider this equation: 2.524 g (5.1 × 106 g) ÷ (6.85 × 103 g) = ? How many significant figures should the result have?
weqwewe [10]

Answer:

7

Explanation:

2.524g(5.1)(106)g

(6.85)(103)g

=

1364.4744g2

705.55g

=

1364.4744g

705.55

=

1364.4744g

705.55

=1.933916g

6 0
4 years ago
What is the water table?
horsena [70]
I think the answer is D. the upper surface of undergound water.
6 0
4 years ago
Read 2 more answers
Water is 11.2% by mass hydrogen. How many kilograms of water would contain 5.8 g of hydrogen?
Thepotemich [5.8K]
5.8 is 11.2% of what number

51.786 grams
3 0
4 years ago
A piece of charcoal is found to contain
Naddika [18.5K]

Answer: The tree died 9709.46 years before.

Explanation:

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  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{30}{100}\times 100=30

a) to find rate constant

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{0.693}{5600years}=1.24\times 10^{-4}years^{-1}

b) to know the age

t=\frac{2.303}{1.24\times 10^{-4}}\log\frac{100}{30}

t=9709.46years

The tree died 9709.46 years before.

8 0
3 years ago
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