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2 years ago

I need this tonight. I will give brainliest

Chemistry

1 answer:

yuradex [85]2 years ago

4 0

Answer:

sorry but it's so hard to do this

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A rock's mass is a:

Alekssandra [29.7K]

Answer:

all of the above

Explanation:

now I will bless you with this-

7 0

3 years ago

Spindle fibers move homologous chromosomes to opposite sides.

aksik [14]

Answer:

true.

Explanation:

spindle fibers pull chromosomes apart in anaphase.. in the splitting of cells [mitosis].

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3 years ago

In balancing the nuclear reaction 7535Br → E + 01e, the identity of element E is ________. In balancing the nuclear reaction Br

nordsb [41]

Answer: The element E is Krypton (Kr).

Explanation:

In a nuclear reaction, the total mass and total atomic number remains the same.

The given nuclear reaction follows:

$_{35}^{75}\textrm{Br}\rightarrow ^{A}_{Z}\textrm{X}+^0_{-1}\textrm{e}$

To calculate A:

Total mass on reactant side = total mass on product side

75 = A + 0

A = 75

To calculate Z:

Total atomic number on reactant side = total atomic number on product side

35 = Z + (-1)

Z = 36

The isotopic symbol of element E is $_{36}^{75}\textrm{Kr}$

Hence, the element E is Krypton (Kr).

4 0

4 years ago

A compound composed of a metal and a nonmetal is dissolved in water the solution is been exposed to an electric current attached

solniwko [45]

Answer:

The answer to your question is: Light bulb turns on

Explanation:

When we combine a metal and a nonmetal the product is a binary salt. Binary salts dissociate is solution and are good conductors of electricity.

Solutions of salt in water are called electrolytes.

In the question, they are describing a binary salt that is dissolve in water to produce an electrolyte, that means a good conductor of electricity.

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3 years ago

Alcohol is a colorless odorless pungent drug that acts as a:

d1i1m1o1n [39]

As a Depressant, it acts like a depressant

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2 years ago