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3 years ago

What is a substance formed when two or more elements combine and lose their distinct properties

1 answer:

5 0

The answer is compound. This a substance shaped when chemical elements (two or more) are chemically joined together. The kind of bonds holding elements in a compound can differ: there are two common kinds namely covalent bonds and ionic bonds. The elements in at all compound are continuously existing in fixed ratios.

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Ice floats in water because it _____. is less dense than water contains more oxygen than water has a higher pH than water has mo

Tpy6a [65]

Answer:

it is less dense than water

Explanation:

odyssey ware

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2 years ago

Which part of an of the helium atom is positively charged

olchik [2.2K]

Nucleus because it is made of protons (which means positively charged)

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3 years ago

Define the term hydrate

Salsk061 [2.6K]

Answer:

a compound,typically a crystalline one,in which water molecules are chemically bound to another compound or an element

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2 years ago

What is △n for the following equation in relating Kc to Kp?

Nimfa-mama [501]

Answer:

-1

Explanation:

The relation between Kp and Kc is given below:

$K_p= K_c\times (RT)^{\Delta n}$

Where,

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant , 0.082057 L atm.mol⁻¹K⁻¹

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

$2Na_{(s)}+2H_2O_{(l)}\rightleftharpoons 2NaOH_{(aq)}+2H_2_{(g)}$

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants) = (2+1)-(2+2) = -1

7 0

3 years ago

All generators need some source of energy to rotate the coil or magnets. True or False

Llana [10]

.energy mechanical needs it Answer:

Yes.

Explanation:

7 0

2 years ago