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Rufina [12.5K]
3 years ago
9

In order to say that carbon dioxide caused global warming scientists had to A.Come up with a mechanism that made sense and test

the steps in the mechanism to see if they were accurate B. Make a good argument for climate change and publish it in a research journal C. Make a graph that showed that carbon dioxide and the Earth’s temperature were increasing at the same time D.Review the weather patterns on Earth to see if they were changing over time
Chemistry
1 answer:
Bumek [7]3 years ago
6 0

Answer:

Option A.

Explanation:

Option A directly tests the cause and effect. Option B simply argues it argumentatively without any solid evidence to show cause and effect. Option C only shows correlation and Option D only shows correlation as well.

You might be interested in
What is the boiling point of a solution made by mixing 75.0g ZnCl2 with 375.0 grams of water? (Kb for water is 0.512 C/m)
monitta
The problem can be solved using the following formula:

ΔTb = i Kb <em>m</em>

i = moles particles/moles solute
Kb = 0.512 °C/m
m = molality =  moles solute/kg solvent

First we can solve for the molality of the solution:

75.0 g ZnCl₂ / 136.286 g/mol = 0.550 mol ZnCl₂

m = 0.550 mol/0.375 kg
m = 1.468 mol/kg

We can now solve for the change in temperature of the boiling point:

ΔTb = i Kb m
ΔTb = (3 mol particles/1 mol ZnCl₂) (0.512 °C/m) (1.468 m)
ΔTb = 2.25 °C

The boiling point of a solution is the initial boiling point plus the change in boiling point:

BP = 100 °C + 2.25 °C
BP = 102.25 °C

The solution will have a boiling point of 102.25 °C.
5 0
3 years ago
In the chemical equation Zn + 2HCL → ZnCl2 + H2, the reactants are
viva [34]

The correct answer is:

Zinc and hydrochloric acid

Explanation:

Reactants are the opening materials in a chemical reaction. Reactants experience a chemical change in which chemical bonds are destroyed and new ones created to make products. In a chemical equation, reactants are posted on the left side of the arrow, while products are on the right side. If a chemical reaction has an arrow that points both left and right, then things on both sides of the arrow are reactants as well as products .And in above reaction Zinc and hydrochloric acid react and form zinc chloride.

3 0
3 years ago
Read 2 more answers
How many grams are in 1.6 moles of potassium bromide?​
slava [35]

Answer:

190.4g

Explanation:

1.6mol of KBr (119.002g KBr/1 mol) = 190.4g

since you want to find grams, take the molar mass of KBr (119.002) per 1 mol and use it as your conversion factor (119.002g KBr/1 mol) which will then cancel out mols and leave you with grams.

6 0
4 years ago
It usually takes Vaughn 12 minutes to drive to school. She drives an average of 50.0 miles per hour. What is the distance from s
lilavasa [31]
<h3>Answer:</h3>

  = 633,600 Inches

<h3>Explanation:</h3>

Speed refers to the rate of change in distance traveled by a body in motion.

It is the ratio of distance to time taken.

It is calculated by;

Speed = Distance ÷time taken

Therefore;

Distance = Speed × time

In this case;

Time taken = 12 minutes ( but 1 hr = 60 mins)

Thus, t = 0.2 hours

Speed = 50.0 miles/hour

Thus;

Distance = 50.0 miles/hr × 0.2 hours

               = 10 miles

But, we are require to give the distance in inches;

1 mile = 63360 Inches

Therefore;

10 miles = 10 × 63360 Inches

            = 633,600 Inches

6 0
3 years ago
A man weighs 185 lb. What is his mass in grams?<br> Please show work.<br> Thank you
Vera_Pavlovna [14]

Answer:

83914.52 grams

Explanation:

Given that,

Weight of a man is 185 lb

We need to find his weight in grams

For this, we must know the relation between lb and grams.

We know that,

1 lb = 453.592 grams

To find the mass of man in grams, the step is :

185 lb = (453.592 × 185) grams

= 83914.52 grams

So, the mass of a man is 83914.52 grams.

8 0
4 years ago
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