Answer:
2/3 cup of semisweet chocolate
<span>Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of approximately 3.5% or 35 parts per thousand. This means that for every 1 liter (1000 mL) of seawater there are 35 grams of salts (mostly, but not entirely, sodium chloride) dissolved in it.
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Answer:
The assumptions of the Bohr model of the atom are:
- Atoms have a central nucleus with electrons in orbit about this nucleus.
- They must gain energy to jump to a higher level, and they release energy when jumping to a lower level.
- Electrons orbit the nucleus, but the orbits can have only certain sizes and energy values.
Explanation:
The Bohr model of the atom establishes that atoms have a central nucleus with positive charge and electrons (with a negative charge) in orbit about this nucleus. In the Bohr model, electrons move in specific orbits with a certain amount of energy and can't jump from one orbit to another around the nucleus. To jump to a higher level, they must gain energy or release energy when jumping to a lower level.
The Thomson model of the atom postulated that <em>atoms are solid spheres of matter</em> and <em>are made of positive material with electrons fixed in place in this positive material</em>.
Answer:
Decreases
Explanation:
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Answer:
Double displacement reaction
Explanation:
Chemical equation:
H₃PO₄ + NaBr → HBr + Na₃PO₄
Balanced chemical equation:
H₃PO₄ + 3NaBr → 3HBr + Na₃PO₄
Step one:
H₃PO₄ + NaBr → HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 1
P = 1 P = 1
O = 4 O = 4
Na = 1 Na = 3
Br = 1 Br = 1
Step 2:
H₃PO₄ + NaBr → 3HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 3
P = 1 P = 1
O = 4 O = 4
Na = 1 Na = 3
Br = 1 Br = 3
Step 3:
H₃PO₄ + 3NaBr → 3HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 3
P = 1 P = 1
O = 4 O = 4
Na = 3 Na = 3
Br = 3 Br = 3
Type of chemical reaction:
The given reaction is double displacement reaction on which cation and anion of both reactants are replace with each other.
