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3 years ago

Which is the most reactive metal and why?

Chemistry

1 answer:

Gemiola [76]3 years ago

3 0

Answer:

Caesium, the most reactive metal in the periodic table, reacts extremely violently – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when dropped into water.

Hope this answer is right!

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A couple purchases a house for $400,000.00. They pay 20% down at closing, and take out a mortgage of $320,000.00. The mortgage c

11Alexandr11 [23.1K]

A couple purchases a house for $400,000.00. They pay 20% down at closing, and take out a mortgage of $320,000.00. The mortgage company offers them a 4.80% annual rate with monthly compounding. The mortgage will require monthly payments for the next 30 years.

What will be the monthly payment on this mortgage?

Answer:

$ 1678.91

Explanation:

Given that;

Cost of purchasing a house = $400,000.00

Down payment =20%

Mortgage Value (MV) = $320,000.00

Annual rate offered by the mortgage company = 4.80% yearly i.e 0.4 per month

Duration of the Mortgage Loan (n) = 30 years which is equivalent to 360 months.

if we represent the monthly repayment with MR ,To calculate the monthly repayment MR;we have;

MV = MR × $(\frac{1}{i})*[1-(\frac{1}{(1+i)^{n}} )}]$

where i = 0.004 (4.8 % annually expressed as 0.48, divided by 12 monthly payments per year)

∴

$320,000.00$ = $MR$ $*(\frac{1}{0.004})*[1-(\frac{1}{1+0.004)^{360}}})]$

320,000.00 = MR × 190.60

Monthly repayment (MR) = $ 1678.90870933

Monthly repayment (MR) ≅ $ 1678.91

5 0

4 years ago

All of the following statements about protons are true except?

____ [38]

A. Protons circle the nucleus of an atom.
This isn't true because protons are found in the nucleus.

5 0

3 years ago

A student was given a pale blue transparent liquid in a beaker. The student gently heated the solution until the liquid had vapo

Vikki [24]

This is so as the liquid you are heating is copper (II) sulfate (I think so) so when you heat it to saturation, there will still be some water molecules left behind, which will allow copper (II) sulfate crystals to be formed since there is water of crystallisation. so the formula is (CuSO4.5H2O).

Hence, if you heat it for a longer period of time when all the water has evaporated, you will obtain a white powder (CuSO4) as crystals cannot form without water of crystallisation

3 0

3 years ago

A gas cylinder cannot be half filled

boyakko [2]

Answer:

it's more flexible that way

Explanation:

there is more oxygen to let it catch fire

5 0

4 years ago

Which bond does water atom share

Semenov [28]

Answer:

Covalent bonds

Explanation:

A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. Atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds.

3 0

3 years ago

Which is the most reactive metal and why?​

Which is the most reactive metal and why?