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Stolb23 [73]
3 years ago
14

Which of the following statements is true?

Chemistry
2 answers:
Darya [45]3 years ago
7 0
B. The nucleus of an atom contains protons and neutrons.
jeka57 [31]3 years ago
3 0
B. The nucleus of an atom contains protons and neutrons. 
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Sodium<br> bromide+<br> Lithium<br><br> Based on Single replacement
Helga [31]

Answer:

the answer will be lithium bromide + sodium

Explanation:

because displace sodium from bromine there by liberating sodium as an element in the product side

6 0
3 years ago
How is stoichiometry used to calculate amount of product from amount of reactant?
Nadusha1986 [10]

Answer:

D. The coefficients give the ratio of mole reactant to moles product.

Explanation:

In stoichiometric calculations, the amount of product formed from reactants can be determined.

  • Using this approach, the number of moles of reactants and products on both sides of the expression must be balanced.
  • As a rule of thumb, the coefficients give the ratio of moles of reactants to moles of products.
  • This is very useful in a number of calculations using the stoichiometric approach.
5 0
3 years ago
A
ValentinkaMS [17]

Answer: ...

Explanation:

8 0
3 years ago
Read 2 more answers
: are found around the atom &amp; have a negative charge (-)
slava [35]

Explanation:

electrons surrounds the necleus. Electrons have a negative charge. Protrons has positive

4 0
3 years ago
two objects each have a mass of 5.0 g. one had a density of 2.7 g. and the other has a density of 8.4 g. which object has a larg
gulaghasi [49]

Answer:

The body with 2.7 \frac{g}{(cm^3)} has a larger volume

Explanation:

There is a missespelling in the question. The units of density cannot be g, they usually are \frac{g}{(cm^3)}

In order to answer this question, we need to use the formula of the density of a body:

Density = \frac{Mass}{Volume} = \frac{M}{V}

For body A:

Mass (M) = 5.0 g

Density (D) = 2.7 \frac{g}{(cm^3)}

2.7 \frac{g}{(cm^3)} = 5g * 1/V

V1 = 5g / (2.7 \frac{g}{(cm^3)})

V1 = 1.85 1.85 cm^3

For Body B:

Mass (M) = 5.0 g

Density (D) = 8.4 \frac{g}{(cm^3)}

8.4 \frac{g}{(cm^3)} = 5g * 1/V

V2 = 5g / (8.4 \frac{g}{(cm^3)})

V2 = 0.59 1.85 cm^3

So V1 is bigger than V2

5 0
3 years ago
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