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katrin [286]
3 years ago
5

What causes the earth’s magnetic field? A. currents in the earth’s liquid-metal outer core B. the mineral composition of the ear

th’s crust C. molten material in the mantle D. magnetic particles located at the earth’s poles Question Resources\
Chemistry
2 answers:
S_A_V [24]3 years ago
8 0
The magnetic field is believed to be generated by electric currents in the conductive material of its core, created by convection currents due to heat escaping from the core. So your answer is A
gtnhenbr [62]3 years ago
5 0
Magnetic particles located at the earth poles
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107.854 how many significant
sattari [20]

Answer:

3

Explanation:

look after DP theres 3 digits

6 0
3 years ago
Identify the following reactions as combination, decomposition, or combustion reactions
kkurt [141]

Answer:

1. combustion

2. decomposition

3. decomposition

4. combination

5. decomposition

6. decomposition

Explanation:

combination of a reaction is when 2 more or elements/ compounds combine to form a compound. example: (A+B→AB)

decomposition of a reaction is when a chemical breakdown. example: (AB→A+B)

a combustion reaction is when an element/ compound reacts with oxygen to form the product of water and carbon dioxide.

example: ( C_{x} H_{y} + O_{2} → H_{2}O + CO_{2} )

7 0
2 years ago
Help please!!!!
emmasim [6.3K]
Mag aral ka muna bago ml
4 0
3 years ago
How many moles of MgS2O3 are in 173 g of the compound?
liq [111]
There are 1.27 moles in the compound.


4 0
2 years ago
Solid sodium hydroxide reacts with gaseous carbon dioxide to form solid sodium carbonate salt and liquid water. Formulate the ba
Bond [772]

Answer:

a) 0.925 mol Na2CO3 can be theoretically produced

b) 0.075 moles of the excess starting material remains

Explanation:

balaced chemical:

2 NaOH(s) + CO2(g) ↔ Na2CO3(s) + H2O(aq)

   1.85n          1.00n             Xn

moles theor. Na2CO3:

⇒ nNaCO3 = 1.85nNaOH * ( nNa2CO3 / 2nNaOH)

⇒ nNa2CO3 = 0.925nNa2CO3

moles of the excess:

⇒moles CO2 react = 1.85nNaOH * nCO2 / 2nNaOH = 0.925n CO2

⇒moles CO2 excess = 1.00n - 0.925n = 0.075n excess CO2

5 0
2 years ago
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